Vacuum Optics Catalogue - June 2021

Issue June 2021

2

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www.torrscientific.co.uk

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Torr Scientific Ltd.

Specialists in UHV, Optical and X-ray Components

Managing Director David Bates in the

Torr Scientific cleanroom

“Welcome to the first catalogue dedicated to

Torr’s Vacuum Optics Division.”

Torr Scientific Limited is an innovative company that brings together a unique

range of expertise, skills and equipment from the worlds of thin film vacuum coating,

vacuum instrumentation and electro-optics. The company manufactures X-

ray anodes, UHV Viewports and processes anti-reflective coatings. Torr Scientific

was established in 1998 and the employees of the company have many years of

experience in the UHV and Electro-Optical industries. Products are manufactured

in cleanroom conditions and facilities include vacuum furnaces, TIG welding, White

Light Interferometer, glass shop, helium leak testing, e-beam and sputter coating

systems, a UV/Vis/IR spectrophotometer and a precision machining department.

The company originally offered a thin film coating service and expanded in

to production of X-Ray products, phosphor screens and hermetic seals. The company

relocated from Portslade to Bexhill-on-Sea in East Sussex in August 2009. The

Bexhill factory was expanded during 2011 to incorporate a modern cleanroom facility

for manufacture of contamination free components and instruments for ultra

high vacuum applications. The company is ISO9001:2008 BSI registered and welcomes

enquiries for both standard and non-standard requirements. Please browse

this catalogue for further details about Torr Scientific’s large range of UHV Viewports,

AR coatings, optics, CVD diamond, vacuum components and fabrications.

The company registration number is 3622909

The company VAT number is 702 9779 14

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Contents

Company Introduction ..................................................................................................................................................3

Facilities ...............................................................................................................................................................................7

Product Introduction ....................................................................................................................................................10

SECTION 1

VIEWPORTS

Fused Silica Zero Length Viewports ...........................................................................................................14

Bonded Fused Silica Zero Length Viewports ..........................................................................................16

Fused Silica Re-Entrant Viewports ..............................................................................................................18

Kodial Zero Length Viewports .....................................................................................................................20

Kodial Zero Length Viewports with ITO Coating .................................................................................22

Kodial Zero Length Viewports with X-Ray Protection Lead Glass .................................................24

Kodial Zero Length Viewports with ITO Coating and X-Ray Protection Lead Glass ...............26

Non-Magnetic Kodial Zero Length Viewports .......................................................................................28

Kodial Re-Entrant Viewports ........................................................................................................................30

200°C Sapphire Zero Length Viewports ...................................................................................................32

High Temperature Sapphire Zero Length Viewports ...........................................................................34

Zinc Selenide Zero Length Viewports .......................................................................................................36

Magnesium Fluoride Zero Length Viewports .........................................................................................38

Calcium Fluoride Zero Length Viewports ................................................................................................40

Barium Fluoride Zero Length Viewports ..................................................................................................42

CVD Diamond UHV Viewports ....................................................................................................................44

Quartz Natural Z-Cut Zero Length Viewports .......................................................................................46

Differentially Pumped Viewports ................................................................................................................48

SECTION 2

VIEWPORTS WITH ANTI-REFLECTIVE COATINGS

Fused Silica UHV Laser Viewports With ’VAR’ Anti-Reflective Coatings.......................................50

Fused Silica UHV Viewports With Anti-Reflective Coatings..............................................................52

Fused Silica UHV Viewports With Broadband Anti-Reflective Coatings ......................................54

Fused Silica UHV Viewports With ’WAR’ Anti-Reflective Coatings.................................................56

Kodial Zero Length Viewports With Anti-Reflective Coatings.........................................................58

Kodial Zero Length Viewports With Broadband Anti-Reflective Coatings..................................60

Kodial Zero Length Viewports With ’VAR’ Anti-Reflective Coatings..............................................62

Kodial Zero Length Viewports With ’WAR’ Anti-Reflective Coatings............................................64

Sapphire Viewports with Anti-Reflective Coatings...............................................................................66

Sapphire Viewports with Broadband Anti-Reflective Coatings .......................................................68

Sapphire Viewports with ‘VAR’ Anti-Reflective Coatings...................................................................70

AR Coated Zinc Selenide Zero Length Viewports.................................................................................73

SECTION 3

GLASS COMPONENTS AND GLASS TO METAL SEALS

CF Tubulated Kodial Viewport ....................................................................................................................78

CF Kodial Tubulation .......................................................................................................................................78

CF Kodial Tubulation with Hydroformed Bellows ................................................................................78

CF Kodial Domed Tubulation .......................................................................................................................79

CF Pyrex Tubulation ........................................................................................................................................79

CF Pyrex Tubulation with Hydroformed Bellows ..................................................................................79

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Contents

SECTION 4

CHAMBERS, VIEWPORT ACCESSORIES AND CONSTRUCTION HARDWARE

KF and ISO Centering Rings..........................................................................................................................82

CF Copper Gaskets............................................................................................................................................84

Blank Flanges......................................................................................................................................................85

Clamps and Fasteners......................................................................................................................................86

Atom Trap Chambers.......................................................................................................................................88

Viewport Shutters .............................................................................................................................................90

SECTION 5

OPTICS

Optics.....................................................................................................................................................................95

Attenuation Filter Wheels ..............................................................................................................................98

SECTION 6

CVD DIAMOND

SECTION 7

CERAMIC PRODUCTS AND FEEDTHROUGHS

SECTION 8

CVD Diamond..................................................................................................................................................102

Ceramic Breaks................................................................................................................................................106

BNC and SHV Feedthroughs......................................................................................................................107

PHOSPHOR SCREENS

UHV CF RHEED Screens...............................................................................................................................110

Index................................................................................................................................................................................112

Terms and conditions................................................................................................................................................119

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Facilities

Torr Scientific relocated to a modern 410 m 2

factory in Bexhill-on-Sea, East Sussex in

August 2009. A 270 m 2 first floor extension

was completed in October 2011 increasing

floor space at the Sussex manufacturing

site to 690 m 2 . A second adjoining factory

and cleanroom was built in 2015 expanding

floor space to over 1200 m 2

Facilities

In response to demand from customers requiring

contamination free products for

UHV applications, the company invested in a

new 110 m 2 cleanroom to provide a laboratory

manufacturing facility in which thin-film

coatings and hermetic seals are processed,

and UHV and Optical instrumentation is assembled,

inspected and packed.

TSL took delivery of a new vacuum furnace

in August 2010. The furnace, supplied by

Specnow Ltd., has a hot zone four times larger

than previous furnaces at TSL. The system

incorporates Specnow’s latest Microlink

control system with data management and

logging. The investment was made to meet

growing demand for TSL fused silica and

sapphire UHV viewports and allow further

development of ceramic to metal seals.

A turntable and TIG welding cell has been set

up at Torr Scientific. All viewports are now

welded within the company allowing full

quality control over the complete viewport

manufacturing process. Weld rings in kovar,

stainless steel and non-magnetic materials

are welded in to 304L and 316LN flanges.


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Facilities

Facilities

All brazed and welded components are leak

tested using TSL’s Inficon mass spectrometer

helium leak tester.

Cleaning and assembly of UHV instrumentation

takes place in laminar flow cabinets in

cleanroom conditions.

The e-beam vacuum coating system is used

predominantly to process anti-reflective

coatings. TSL upgraded the electronic control

units on the e-beam system in 2009

in partnership with Ferrotec, specialists in

electron beam evaporator equipment. The

upgrade has improved efficiency and reliability

of the anti-reflecting coating process.

Viewports are coated to customer specified

wavelengths of application.

Torr Scientific invested in a new Perkin Elmer

UV/Vis/IR Spectrophotometer in January

2011. The spectrophotometer extends

the range at which the company is able to

measure both reflectance and transmission

to between 190 nm and 3.2 microns. The

instrument is used as an inspection tool

for incoming optics and for manufactured

UHV viewports with anti-reflective coatings

optimised for particular customer applications.

The spectrophotometer brings greater

quality control to the business and extended

TSL’s coating capability.

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Facilities

Torr Scientific’s optical inspection capability

includes a recently acquired Zygo interferometer

surface profiler. The profiler enables

highly accurate non-destructive examination

of surfaces to check thicknesses and uniformity

of X-ray anode coatings and optical

flatness and seal structure of vacuum optics

manufactured at the company. The interferometer

brings a greater level of quality

control and alongside the existing UV-Vis-IR

spectrophotometer strengthens the company’s

optical and coating test facilities.

Facilities

Torr Scientific has extended its vacuum

window processing capabilities to include

production of glass to metal seals. The facility

also allows further development of the wide

range of vacuum optical components offered

by the company. OEM and non-standard

enquiries are also welcome. A new induction

heater has been added to the glass shop and

enables the company to develop its range

of glass vacuum windows, feedthroughs

and OEM requirements for encapsulation of

X-ray and photonic components. The induction

heater adds to the current vacuum

brazing techniques applied for production of

the vacuum optic range of products.

The Torr Scientific precision machine shop

houses an XYZ CNC/Manual mill and 50”

colchester lathe. In addition to welding, helium

leak testing, cleaning and inspection facilities,

the facility manufactures components

and small UHV chambers to custom design.

CAD Engineering drawings are produced

around customer requirements and issued

for customer approval before manufacturing

proceeds.


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Product Introduction

Viewports

Torr Scientific manufactures a range of UHV viewports in CF, ISO or KF formats including a

variety of anti-reflective coatings to enhance performance. Materials include Kodial (borosilicate

glass), Quartz, Sapphire, MgF 2 , BaF 2 , CaF 2 , ZnSe, CVD diamond and Lead Glass. Non-magnetic

options and 316LN flanges are offered. Full transmission, dimensional, optical and temperature

specifications can be viewed on the viewport datasheets and standard price list. Custom designed

viewports, such as special assemblies to be able to insert microscopes or cameras in to vacuum

systems, can be quoted on request. The viewports are manufactured and coatings are processed

in cleanroom conditions.

Viewports with Anti-Reflective Coating

A range of anti-reflective coatings can be processed and optimised to customer specified wavelengths.

Theoretical reflectance curves can be supplied on request for particular window material

and wavelength combinations. Single 1QWOT ‘AR’ coatings, plus four-layer broadband ‘BBAR’

coatings for a wavelength range and two-layer ‘V’ coatings optimised for single wavelengths are

provided. A list of regular curves can be viewed on the Torr Scientific website. If there is a curve

listed which suits your application please reference it in your enquiry or order. The coatings are

processed on TSL’s eBeam system in cleanroom conditions and tested on a state of the art UV-Vis

spectrophotometer.

Glass to Metal Seals & Glass-Working

Torr Scientific has extended its vacuum window processing capabilities to include production of

glass to metal seals. The facility will also allow further development of the wide range of vacuum

optical components offered by the company. A new induction heater is now in operation and

glass-working lathes, ovens and test equipment are also housed in the glass department. The

operators have many years’ experience in the production of glass products for vacuum and electron

optical devices. The recently formed department will enable the company to develop glass

vacuum windows, feedthroughs and X-ray tube encapsulations in addition to the current vacuum

brazing techniques applied for production of the vacuum optic range of products. All Kodial glass

viewports are now produced in-house and enquiries for custom requirements for glass-working

and glass to metal seals are welcomed.

Chambers, Viewport Accessories and Construction Hardware

A complimentary range of CF viewport shutters is also offered by Torr Scientific. Sealing components

such as KF and ISO centering rings, plus CF copper gaskets are also available. It is strongly

recommended to always use annealed copper gaskets with all Torr Scientific viewports. Viewport

construction components such as KF swing clamps, ISO claw clamps, nuts, bolts and washers and

blank flanges can also be found in this catalogue. Torr Scientific is designing and manufacturing

UHV chambers for a variety of research applications. The chambers can be quoted to customer

specifications and can be offered in 304L, 316L and 316LN stainless steel. All vacuum fabrications

are inspected, helium leak tested and cleaned to UHV standards. Pumps, pumping trolleys and

assembly packages can also be supplied.

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Product Introduction

Optics

Torr Scientific has incorporated optical quality windows in to a wide range of viewports in response

to growing demand for scientists carrying out laser experimentation within UHV systems.

The company is also able to supply polished optics in a variety of forms and materials. Standard

viewport windows can be offered as well as optics to custom specification. Precise surface

qualities and optical specifications can be quoted. A Perkin Elmer UV/Vis/IR Spectrophotometer

enables the company to measure both reflectance and transmission to between 190nm and 3.2

microns. The instrument is used as an inspection tool for incoming optics and for manufactured

UHV viewports with anti-reflective coatings optimised for particular customer applications.

CVD Diamond

Torr Scientific is the European agent for optical and thermal CVD diamond processed at The

Plasma Laboratory, Hebei Institute of Laser in China. Natural diamond has always been of extreme

scientific interest due to its unmatched properties including hardness, thermal conductivity,

broadband transparency, chemical inertness and high temperature stability. However, the cost

of natural diamond substrates is prohibitive in most cases. CVD processes have been developed

to the point where economical artificial diamond substrates are now readily available. Torr Scientific

is offering CVD diamond substrates in various shapes for use in applications such as thermal

mounts and laser windows as well as sealed into vacuum viewport assemblies for high vacuum

applications. The CVD diamond performance is very close to that of natural diamond, so our customers

can now take advantage of thermal conductivity that is five times that of copper and high

transparency for optical wavelengths that range from 225 nanometers to beyond 100 microns.

Ceramic Products and Feedthroughs

Ceramic to metal seals are brazed in TSL’s vacuum furnace in cleanroon conditions. A range

of ceramic breaks is under development and electrical feedthroughs, multi-pin, BNC and SHV,

are offered in this catalogue. Ceramic parts and seals are also used in custom manufactured

feedthrough and anode assemblies for OEM customers.

Phosphor Screens

Torr Scientific produces a range of RHEED screens which are processed using kodial glass zero

length viewports with kovar weld rings and options of 304L or 316LN CF flanges. P22 yellow green

phosphor is supplied as standard and other phosphors including P11, P43 and P46 can be

supplied on request. Options with additional 6mm thick lead glass discs for X-Ray protection are

also offered. Screens can be prepared to customer design including phosphor layers directly on

to lead glass windows. RHEED, Reflection High Energy Electron Diffraction, is a typical application

used as a structural probe during material growth and deposition in Molecular Beam Epitaxy.

Torr Scientific also refurbishes LEED screens and processes custom specific phosphor screens on

various substrates, typically glass and lead glass.


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SECTION 1

Viewports

SECTION 1

VIEWPORTS

Fused Silica Zero Length Viewports ...........................................................................................................14

Bonded Fused Silica Zero Length Viewports ..........................................................................................16

Fused Silica Re-Entrant Viewports ..............................................................................................................18

Kodial Zero Length Viewports .....................................................................................................................20

Kodial Zero Length Viewports with ITO Coating .................................................................................22

Kodial Zero Length Viewports with X-Ray Protection Lead Glass .................................................24

Kodial Zero Length Viewports with ITO Coating and X-Ray Protection Lead Glass ...............26

Non-Magnetic Kodial Zero Length Viewports .......................................................................................28

Kodial Re-Entrant Viewports ........................................................................................................................30

200°C Sapphire Zero Length Viewports ...................................................................................................32

High Temperature Sapphire Zero Length Viewports ...........................................................................34

Zinc Selenide Zero Length Viewports .......................................................................................................36

Magnesium Fluoride Zero Length Viewports .........................................................................................38

Calcium Fluoride Zero Length Viewports ................................................................................................40

Barium Fluoride Zero Length Viewports ..................................................................................................42

CVD Diamond UHV Viewports ....................................................................................................................44

Quartz Natural Z-Cut Zero Length Viewports .......................................................................................46

Differentially Pumped Viewports ................................................................................................................48

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Fused Silica Zero Length Viewports

Fused Silica Zero

Length Viewports

Seal Type

Maximum

Temperature

Minimum

Temperature

Maximum Rate

of Temperature

Change

Leak Rate

P re s s u re R a n g e

S u r f a c e Q u a l i t y

Parallelism

Flatness

Laser Damage

Threshold

Specification

Torr Scientific fused silica viewports are offered in CF, ISO and KF flange styles. The viewports comprise

a high purity laser quality fused silica optic with precise flatness, parallelism, scratch and dig

specifications. The ultra high vacuum (UHV) CF versions are offered using high grade 304L or 316LN

stainless steel flanges. Non-magnetic viewports are offered for low energy applications or surface

science applications needing low magnetic fields. The non-magnetic viewports use a non-magnetic

weld ring instead of the regular kovar weld ring. Flanges in 304L stainless steel are used for the high

vacuum KF and ISO viewports. TSL viewports are manufactured in cleanroom conditions and helium

leak tested, cleaned and packed to UHV standards. The rugged construction of the fused silica

viewports allows repeated bake-out with UHV performance, whilst the window offers broadband

optical transmission through deep UV, visible to near infra-red. Various anti-reflective coatings to

match customer reflectance requirements are processed at TSL and available as options listed in

the AR coated viewport section of the catalogue. Laser viewports with a VAR coating optimised

for specific customer specified laser wavelength, reducing reflectance to below 0.5% per face, are

also offered. Non-standard viewports can be manufactured on request, including re-entrant style

microscope/camera viewports. Annealed copper gaskets and other component accessories are also

supplied by TSL.

Braze

200 °C (KF & ISO versions 150°C)

minus 20 °C

3 °C per minute

<1x10 -10 atm-cc/sec (He)

1 bar to 1x10 -9 mbar

20/10 scratch/dig

< 3 arc minutes

< 8λ (λ/8 at 632.8 nm over 75%

of central area before brazing)

CW Continuous Wave - 500 W/cm 2 at 530 nm

Pulsed 2 J/cm 2 at 530 nm and 10ns pulse width

(note, varies with wavelength, pulse width, laser type

and cleanliness of optic)

Transmission Curve - Fused Silica

Please note that the optical transmission curves are approximations and should be used for reference only

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Fused Silica Zero Length Viewports

CF-1

KF-1

ISO-1

CF-2

KF-2

ISO-2

CF-3

Part Number

Flange

Type

A

(mm)

KF-3

B

(mm)

C

(mm)

D

(mm)

Diagram

ISO-3

Flange

Material

Weld Ring

Material

VPZ16Q NW16CF 34 15 1.5 12.7 CF-1 304L Kovar

VPZ16Q-LN NW16CF 34 15 1.5 12.7 CF-1 316LN Kovar

VPZ16Q-NM NW16CF 34 15 1.5 12.7 CF-1 316LN Non-Magnetic

VPZ16LAQ NW16CF 34 15.5 1.5 9 CF-1 304L Kovar

VPZ16LAQ-LN NW16CF 34 15.5 1.5 9 CF-1 316LN Kovar

KVPZ16Q KF16 25 15 1.5 15 KF-1 304L Kovar

KVPZ25Q KF25 40 20 2 18.5 KF-1 304L Kovar

VPZ38Q NW35CF 70 32 3 12.7 CF-1 304L Kovar

VPZ38LAQ NW35CF 70 38 3.5 12.7 CF-2 304L Kovar

VPZ38Q-LN NW35CF 70 32 3 12.7 CF-1 316LN Kovar

VPZ38QLA-LN NW35CF 70 38 3.5 12.7 CF-2 316LN Kovar

VPZ38Q-NM NW35CF 70 32 3 12.7 CF-1 316LN Non-Magnetic

KVPZ40/32Q KF40 55 32 3 12.7 KF-1 304L Kovar

KVPZ40Q KF40 55 38 3.5 18.5 KF-2 304L Kovar

KVPZ50Q KF50 75 38 3.5 15 KF-3 304L Kovar

ISO63QVPZ ISO63 95 38 3.5 12 ISO-1 304L Kovar




VPZ100Q NW100CF 152 89 6 19.9 CF-3 304L Kovar

VPZ100Q-LN NW100CF 152 89 6 19.9 CF-3 316LN Kovar

VPZ100Q-NM NW100CF 152 89 6 19.9 CF-3 316LN Non-Magnetic

ISO100QVPZ ISO100 130 63 4.5 12 ISO-2 304L Kovar




ISO160QVPZ ISO160 180 89 6 12 ISO-3 304L Kovar


Fused Silica Zero

Length Viewports


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Bonded Fused Silica Zero Length Viewports

Specification

Bonded Fused Silica

Zero Length Viewports

Seal Type

Maximum

Temperature

Minimum

Temperature

Maximum Rate

of Temperature

Change

Leak Rate



Parallelism

Flatness

Laser Damage

Threshold

Bonded

Torr Scientific fused silica viewports are offered in CF, ISO and KF flange styles. The viewports comprise

a high purity laser quality fused silica optic with precise flatness, parallelism, scratch and dig

specifications. The ultra high vacuum (UHV) CF versions are offered using high grade 304L or 316LN



weld ring instead of the regular kovar weld ring. Flanges in 304L stainless steel are used for the

high vacuum KF and ISO viewports. TSL viewports are manufactured in cleanroom conditions and

helium leak tested, cleaned and packed to UHV standards. The bonded construction of the fused

silica viewports allows repeated bake-out to a maximum of 120 °C with UHV performance, whilst

the window offers broadband optical transmission through deep UV, visible to near infra-red. Various

anti-reflective coatings to match customer reflectance requirements are processed at TSL and

available as options listed in the AR coated viewport section of the catalogue. Laser viewports with

a VAR coating optimised for specific customer specified laser wavelength, reducing reflectance to

below 0.5% per face, are also offered. Non-standard viewports can be manufactured on request,

including re-entrant style microscope/camera viewports. Annealed copper gaskets and other component

accessories are also supplied by TSL.

120 °C

minus 45 °C

3 °C per minute



20/10 scratch/dig

< 3 arc minutes

λ/8 at 632.8 nm


Pulsed 2 J/cm 2 at 530 nm and 10 ns pulse width





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Bonded Fused Silica Zero Length Viewports

CF-1

KF-1

ISO-1

CF-2

CF-3

KF-2

KF-3

ISO-2

ISO-3

Bonded Fused Silica

Zero Length Viewports

Part Number

Flange

Type

A

(mm)

B

(mm)

C

(mm)

D

(mm)

Diagram

Flange

Material

Weld Ring

Material

BVPZ16Q NW16CF 34 15 1.5 12.7 CF-1 304L Kovar

BVPZ16Q-LN NW16CF 34 15 1.5 12.7 CF-1 316LN Kovar

BVPZ16Q-NM NW16CF 34 15 1.5 12.7 CF-1 316LN Non-Magnetic

BKVPZ16Q KF16 25 15 1.5 15 KF-1 304L Kovar

BKVPZ25Q KF25 40 20 2 18.5 KF-1 304L Kovar

BVPZ38Q NW35CF 70 32 3 12.7 CF-1 304L Kovar

BVPZ38LAQ NW35CF 70 38 3.5 12.7 CF-2 304L Kovar

BVPZ38Q-LN NW35CF 70 32 3 12.7 CF-1 316LN Kovar

BVPZ38QLA-LN NW35CF 70 38 3.5 12.7 CF-2 316LN Kovar

BVPZ38Q-NM NW35CF 70 32 3 12.7 CF-1 316LN Non-Magnetic

BKVPZ40/32Q KF40 55 32 3 12.7 KF-1 304L Kovar

BKVPZ40Q KF40 55 38 3.5 18.5 KF-2 304L Kovar

BKVPZ50Q KF50 75 38 3.5 15 KF-3 304L Kovar

BISO63QVPZ ISO63 95 38 3.5 12 ISO-1 304L Kovar




BVPZ100Q NW100CF 152 89 6 19.9 CF-3 304L Kovar

BVPZ100Q-LN NW100CF 152 89 6 19.9 CF-3 316LN Kovar

BVPZ100Q-NM NW100CF 152 89 6 19.9 CF-3 316LN Non-Magnetic

BISO100QVPZ ISO100 130 63 4.5 12 ISO-2 304L Kovar




BISO160QVPZ ISO160 180 89 6 12 ISO-3 304L Kovar



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Fused Silica Re-Entrant Viewports

Specification

Seal Type

Maximum

Temperature

Braze

200 °C

Minimum Temperature minus 20 °C

Maximum Rate of

Temperature Change

3 °C per minute

Fused Silica

Re-Entrant

Viewports

Torr Scientific fused silica re-entrant viewports are typically used for inserting microscopes or cameras

in to UHV/Vacuum systems. The re-entrant viewports are offered in CF flanges as standard, but

custom designed viewports can be manufactured using ISO and KF flange styles on request. The

viewports comprise a high purity laser quality fused silica optic with precise flatness, parallelism,

scratch and dig specifications which are vacuum brazed in to a kovar weld ring to form an optic

assembly. The optic assemblies are TIG welded in to the tube assembly and are helium leak tested

and cleaned for ultra high vacuum (UHV) conditions. The CF versions are offered using 304L stainless

steel flanges, but 316LN flanges can be offered on request. The rugged construction of the

fused silica viewports allows repeated bake-out with UHV performance, whilst the window offers

broadband optical transmission through deep UV, visible to near infra-red. Various anti-reflective

coatings to match customer reflectance requirements are processed at TSL and available as options.

Laser viewports with a VAR coating optimised for specific customer specified laser wavelength,

reducing reflectance to below 0.5% per face, are also offered. Please advise the wavelength or

wavelength ranges of your application and a reflectance curve will be prepared. Annealed copper

gaskets and other component accessories are also supplied by TSL. Please contact Torr Scientific if

you require a quotation for a re-entrant viewport with a different length or different dimensions.


Leak Rate

Pressure Range

Surface Quality

Flatness



20/10 scratch/dig

< 8λ


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Fused Silica Re-Entrant Viewports

Fused Silica

Re-Entrant

Viewports

Part Number Flange Type A

(mm)

B

(mm)

C

(mm)

D

(mm)

E

(mm)

Material

VPR38-111-Q NW35CF 70 15 22.2 18.2 111 304L Kovar

VPR64-138-Q NW63CF 114 32 50.8 47.5 138 304L Kovar

VPR64/38-80-Q NW63CF 114 32 50.8 47.5 80 304L Kovar

VPR100-201-Q NW100CF 152 63 89 83 201 304L Kovar

VPR150-330-Q NW150CF 203 63 108 102 330 304L Kovar

Weld Ring

Material


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Kodial Zero Length Viewports

Specification

Seal Type

Induction

Maximum

Temperature

350 °C (KF versions 150 °C)

Kodial Zero

Length Viewports


Maximum Rate of

Temperature Change

Leak Rate

Pressure Range

3 °C per minute



Torr Scientific Kodial viewports are offered in CF, ISO and KF flange styles. The viewports comprise

a borosilicate glass optic which is sealed to a Kovar weld ring using an induction heater process.

The optic assemblies are TIG welded in to flanges and are helium leak tested and cleaned for ultra

high vacuum (UHV) conditions. The CF versions are offered using 304L or 316LN stainless steel

flanges. Flanges in 304L stainless steel are used for the high vacuum KF and ISO viewports. The

rugged construction of the Kodial viewports allows repeated bake-out with UHV performance,

whilst the window offers broadband optical transmission from the visible to near infra-red. Antireflective

coatings to match customer reflectance requirements are also processed at TSL. Please

advise the wavelength or wavelength ranges of your application and a reflectance curve will be

prepared. Non-standard viewports can be manufactured on request, including re-entrant style


supplied by TSL.

Transmission Curve - Kodial


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CF-1

KF-1

ISO-1

CF-2

KF-2

ISO-2

CF-3

KF-3

ISO-3

Kodial Zero

Length Viewports


(mm)

B

(mm)

C

(mm)

D

(mm)

Diagram

Flange

Material

Weld Ring

Material

VPZ16 NW16CF 34 15 1 12.7 CF-1 304L Kovar

VPZ16-LN NW16CF 34 15 1 12.7 CF-1 316LN Kovar

KVPZ16 KF16 25 15 1 12.7 KF-1 304L Kovar

KVPZ25 KF25 40 20 1.5 18.5 KF-2 304L Kovar

VPZ38 NW35CF 70 32 2.5 12.7 CF-1 304L Kovar

VPZ38LA NW35CF 70 38 3 12.7 CF-2 304L Kovar

VPZ38-LN NW35CF 70 32 2.5 12.7 CF-1 316LN Kovar

VPZ38LA-LN NW35CF 70 38 3 12.7 CF-2 316LN Kovar

KVPZ40LA KF40 55 38 3 18.5 KF-3 304L Kovar

KVPZ50 KF50 75 38 3 15 KF-3 304L Kovar

VPZ50 NW50CF 86 38 3 16 CF-2 304L Kovar

ISO63VPZ ISO63 95 38 3 12 ISO-1 304L Kovar


VPZ64LA NW63CF 114 65 3.5 17.4 CF-2 304L Kovar





VPZ150 NW150CF 203 136 6.5 22.3 CF-3 304L Kovar

VPZ150-LN NW150CF 203 136 6.5 22.3 CF-3 316LN Kovar




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Kodial Zero Length Viewports with ITO Coating

Specification

Seal Type

Weld Ring

Induction

Kovar

Kodial Zero

Length Viewports

with ITO Coating

Coating

Maximum

Temperature

Indium Tin Oxide (ITO) on

vacuum face of window

350 °C


Maximum Rate of

Temperature Change

Leak Rate

Pressure Range

3 °C per minute



The Torr Scientific range of kodial zero length viewports is offered with a transparent conductive

ITO (indium tin oxide InSnO 2 ) on the vacuum side of the window to provide surface conductivity

to eliminate electrostatic charge build up. The coatings are processed using sputter coating

equipment in cleanroom conditions. The ITO coating increases reflectivity and viewports with an

additional anti-reflective coating can be quoted as specials on request. The kodial viewports are

offered in CF, ISO and KF flange styles. The viewports comprise a borosilicate glass optic which is

sealed to a kovar weld ring using an induction heater process. The optic assemblies are TIG welded

in to flanges and are helium leak tested and cleaned for ultra high vacuum (UHV) conditions. The

CF versions are offered using 304L or 316LN stainless steel flanges. Flanges in 316L stainless steel

are used for the high vacuum KF and ISO viewports. Non-standard viewports can be manufactured

on request, including re-entrant style microscope/camera viewports. Annealed copper gaskets and

other component accessories are also supplied by TSL.

CF-1

KF-1

ISO-1

CF-2

ISO-2

22

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Kodial Zero Length Viewports with ITO Coating


(mm)

B

(mm)

C

(mm)

D

(mm)

Diagram

VPZ16ITO NW16CF 34 15 1 12.7 CF-1 304L

VPZ16ITO-LN NW16CF 34 15 1 12.7 CF-1 316LN

KVPZ16ITO KF16 25 15 1 12.7 KF-1 304L

KVPZ25ITO KF25 40 20 1.5 18.5 KF-1 304L

VPZ38ITO NW35CF 70 32 2.5 12.7 CF-1 304L

VPZ38ITO-LN NW35CF 70 32 2.5 12.7 CF-1 316LN

KVPZ40/32ITO KF40 55 32 2.5 12.7 KF-1 304L

KVPZ50/32ITO KF50 75 32 2.5 12.7 KF-1 304L

ISO63/32VPZITO ISO63 95 32 2.5 12 ISO-1 304L

VPZ64ITO NW63CF 114 63 3 17.4 CF-1 304L


VPZ100ITO NW100CF 152 89 4 19.9 CF-2 304L


ISO100VPZITO ISO100 130 63 3 12 ISO-1 304L

VPZ150ITO NW150CF 203 136 6.5 22.3 CF-2 304L

VPZ150ITO-LN NW150CF 203 136 6.5 22.3 CF-2 316LN

ISO160VPZITO ISO160 180 89 4 12 ISO-2 304L

VPZ200ITO NW200CF 254 136 8 24.5 CF-2 304L

Flange Material

Kodial Zero

Length Viewports

with ITO Coating


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with X-Ray Protection Lead Glass

Specification

Seal Type

Induction

Maximum

Temperature

350 °C

Kodial Zero Length

Viewports with

X-ray Protection

Lead Glass

Torr Scientific CF kodial viewports are offered including

an additional 6mm thick lead glass disc

clipped in to the atmosphere side of the kodial window

for X-Ray protection. The viewports comprise

a borosilicate glass optic which is sealed to a kovar

weld ring using an induction heater process. The

optic assemblies are TIG welded in to the flanges

and are helium leak tested and cleaned for ultra

high vacuum (UHV) conditions. The CF versions are

offered using 304L or 316LN stainless steel flanges.

The rugged construction of the Kodial viewports allows

repeated bake-out with UHV performance. The

kodial/lead glass window assembly provides visible

transmission as shown in the graph below.


Maximum Rate of

Temperature Change

Leak Rate

Pressure Range

3 °C per minute



Lead Glass Specification

Optical Properties

Refractive Index 1.76

Transmission % @ 550nm through 5mm path >=85.0

Chemical Properties

Lead (Pb) 48%

Barium (Ba) 15%

Mechanical Properties

Density (g/cm 2 ) 4.8

Knoop Hardness (kg/mm 2 ) 440

Young’s Modulus (GPa) 62.7

Transmission Curve – Kodial including the Lead Glass Disc


24

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with X-Ray Protection Lead Glass

Shielding characteristics

Thickness

Minmum lead equivalence (mm) for stated X-ray tube voltage

mm 100 kV 110 kV 150 kV 200 kV 250 kV 300 kV

5-6.5 1.7 1.6 1.5 1.3 1.3 1.3

CF-1

CF-2

Kodial Zero Length

Viewports with

X-ray Protection

Lead Glass


(mm)

B

(mm)

C

(mm)

D

(mm)

Diagram

Flange

Material

Weld Ring

Material

VPZ16LG NW16CF 34 15 1 6 CF-1 304L Kovar

VPZ16LG-LN NW16CF 34 15 1 6 CF-1 316LN Kovar

VPZ38LG NW35CF 70 32 2.5 6 CF-1 304L Kovar

VPZ38LG-LN NW35CF 70 32 2.5 6 CF-1 316LN Kovar





VPZ150LG NW150CF 203 136 6.5 6 CF-2 304L Kovar

VPZ150LG-LN NW150CF 203 136 6.5 6 CF-2 316LN Kovar


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Kodial Zero Length Viewports with

ITO Coating and X-Ray Protection Lead Glass

Viewport Specification

Seal Type

Induction

Weld Ring

Kovar

Kodial Zero Length

Viewports with ITO

Coating and X-Ray

Protection Lead Glass

Coating

Maximum

Temperature

Indium Tin Oxide (ITO) on


350 °C


Maximum Rate of

Temperature Change

Leak Rate

Pressure Range

3 °C per minute



The Torr Scientific range of kodial zero length viewports

is offered with a transparent conductive ITO

(indium tin oxide InSnO 2 ) on the vacuum side of the

window to provide surface conductivity to eliminate

electrostatic charge build up. The coatings

are processed using sputter coating equipment in

cleanroom conditions. The ITO coating increases

reflectivity and viewports with an additional antireflective

coating can be quoted as specials on request.

The CF kodial viewports are supplied including

an additional 6mm thick lead glass discs clipped

in to the atmosphere side of the kodial window for

X-Ray protection. The viewports comprise a borosilicate

glass optic which is sealed to a kovar weld

ring using an induction heater process. The optic

assembly are TIG welded in to flanges and are helium

leak tested and cleaned for ultra high vacuum

(UHV) conditions. The CF versions are offered using

304L or 316LN stainless steel flanges.

Lead Glass Specification

Optical Properties

Refractive Index 1.76

Transmission % @ 550nm through 5mm path >=85.0

Chemical Properties

Lead (Pb) 48%

Barium (Ba) 15%

Mechanical Properties

Density (g/cm 2 ) 4.8

Knoop Hardness (kg/mm 2 ) 440

Young’s Modulus (GPa) 62.7

Shielding characteristics

Thickness

Minmum lead equivalence (mm) for stated X-ray tube voltage

mm 100kV 110kV 150kV 200kV 250kV 300kV

5-6.5 1.7 1.6 1.5 1.3 1.3 1.3

26

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Skip to Contents

Kodial Zero Length Viewports with

ITO Coating and X-Ray Protection Lead Glass

CF-1

CF-2

Kodial Zero Length

Viewports with ITO

Coating and X-Ray

Protection Lead Glass


(mm)

B

(mm)

C

(mm)

D (mm)

(lead glass

thickness)

Coating

(on vacuum

face of kodial)

Diagram

VPZ16ITOLG NW16CF 34 15 1 6 ITO CF-1 304L

Flange

Material

VPZ16ITOLG-LN NW16CF 34 15 1 6 ITO CF-1 316LN

VPZ38ITOLG NW35CF 70 32 2.5 6 ITO CF-1 304L

VPZ38ITOLG-LN NW35CF 70 32 2.5 6 ITO CF-1 316LN





VPZ150ITOLG NW150CF 203 136 6.5 6 ITO CF-2 304L

VPZ150ITOLG-LN NW150CF 203 136 6.5 6 ITO CF-2 316LN


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Non-Magnetic Kodial Zero Length Viewports

Specification

Seal Type

Bonded

Maximum Temperature 120 °C

Non-Magnetic

Kodial Zero Length

Viewports


Maximum Rate of

Temperature Change

Leak Rate

Pressure Range

3 °C per minute



Torr Scientific non-magnetic Kodial viewports are offered in 316LN CF flanges. The viewports comprise

a borosilicate glass optic which is bonded to a non-magnetic weld ring. The viewports are

helium leak tested and cleaned for ultra high vacuum (UHV) conditions. The rugged construction

of the Kodial viewports allows bake-out to 120 °C with UHV performance, whilst the window offers

broadband optical transmission from the visible to near infra-red. Higher temperature specification

non-magnetic viewports are available using fused silica and sapphire windows. Anti-reflective

coatings to match customer reflectance requirements are also processed at TSL. Please advise the

wavelength or wavelength ranges of your application and a reflectance curve will be prepared.

Non-standard viewports can be manufactured on request, including re-entrant style microscope/

camera viewports. Annealed copper gaskets and other component accessories are also supplied by

TSL.



28

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Non-Magnetic Kodial Zero Length Viewports

CF-1

CF-2


(mm)

B

(mm)

C

(mm)

D

(mm)

Diagram

Flange

Material

Weld Ring

Material

BVPZ16-NM NW16CF 34 15 1 12.7 CF-1 316LN Non-Magnetic

BVPZ38-NM NW35CF 70 32 2.5 12.7 CF-1 316LN Non-Magnetic




Non-Magnetic

Kodial Zero Length

Viewports


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Kodial Re-Entrant Viewports

Specification

Seal Type

Induction

Maximum

Temperature

350 °C

Kodial Re-Entrant

Viewports


Maximum Rate of

Temperature Change

Leak Rate

Pressure range

3 °C per minute



Torr Scientific kodial re-entrant viewports are typically used for inserting microscopes or cameras

in to UHV/Vacuum systems. The re-entrant viewports are offered in CF flanges as standard, but

custom designed viewports can be manufactured using ISO and KF flange styles on request. The

viewports comprise a borosilicate glass optic which is sealed to a kovar weld ring using an induction

heater process. The optic assemblies are TIG welded in to the tube assembly and are helium

leak tested and cleaned for ultra high vacuum (UHV) conditions. The CF versions are offered using

304L stainless steel flanges, but 316LN flanges can be offered on request. The rugged construction

of the Kodial viewports allows repeated bake-out with UHV performance, whilst the window

offers broadband optical transmission from the visible to near infra-red. Anti-reflective coatings to

match customer reflectance requirements are also processed at TSL. Please advise the wavelength

or wavelength ranges of your application and a reflectance curve will be prepared. Annealed copper

gaskets and other component accessories are also supplied by TSL. Please contact Torr Scientific

if you require a quotation for a re-entrant viewport with a different length or different dimensions.



30

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Kodial Re-Entrant Viewports

Kodial Re-Entrant

Viewports


(mm)

B

(mm)

C

(mm)

D

(mm)

E

(mm)

Material

VPR38-111 NW35CF 70 15 22.2 18.2 111 304L Kovar

VPR64-138 NW63CF 114 32 50.8 47.5 138 304L Kovar

VPR64/38-80 NW63CF 114 32 50.8 47.5 80 304L Kovar

VPR100-201 NW100CF 152 63 89 83 201 304L Kovar

Weld Ring

Material

VPR150-330 NW150CF 203 63 108 102 330 304L Kovar


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200°C Sapphire Zero Length Viewports

Specification

Seal Type

Maximum

Temperature

Braze

200 °C

(KF & ISO versions 150°C)


200°C Sapphire Zero

Length Viewports

Torr Scientific sapphire viewports are offered in CF, ISO and KF flange styles. The viewports comprise a high

quality optic with precise flatness, parallelism, scratch and dig specifications. The single crystal sapphire windows

have excellent optical, physical and chemical properties. The hardest of the oxide crystals, sapphire retains

its high strength at high temperatures. Sapphire has a low coefficient of thermal expansion and low fluorescence,

good resistance to thermal shock and scratching making this an excellent material for IR transmitting

optics and robust applications. C-cut sapphire is selected for Torr Scientific sapphire viewports to minimise the

effects of birefringence. The ultra high vacuum (UHV) CF versions are offered using high grade 304L or 316LN

stainless steel flanges. Non-magnetic viewports are offered for low energy applications or surface science applications

needing low magnetic fields. The non-magnetic viewports use a non-magnetic weld ring instead of

the regular kovar weld ring. Flanges in 304L stainless steel are used for the high vacuum KF and ISO viewports.

TSL viewports are manufactured in cleanroom conditions and helium leak tested, cleaned and packed to UHV

standards. The rugged construction of the sapphire viewports allows repeated bake-out to 200 °C with UHV

performance, whilst the window offers broadband optical transmission through vacuum UV, visible to near

infra-red. Various anti-reflective coatings to match customer reflectance requirements are processed at TSL

and available as options listed in the AR coated viewport data sheets. Non-standard viewports can be manufactured

on request, including re-entrant style microscope/camera viewports. Annealed copper gaskets and


Transmission Curve - Sapphire

Maximum Rate of

Temperature Change

Leak Rate

Pressure Range

Surface Quality

Flatness

3 °C per minute



60/40 scratch/dig

< 8λ


32

Copyright ©


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200°C Sapphire Zero Length Viewports

CF-1

KF-1

ISO-1

CF-2

KF-2

ISO-2

CF-3

Part Number

Flange

Type

A

(mm)

KF-3

B

(mm)

C

(mm)

D

(mm)

Diagram

ISO-3

Flange

Material

Weld Ring

Material

VPZ16S-200 NW16CF 34 15 1.5 12.7 CF-1 304L Kovar

VPZ16S-LN-200 NW16CF 34 15 1.5 12.7 CF-1 316LN Kovar

VPZ16S-NM-200 NW16CF 34 15 1.5 12.7 CF-1 316LN Non-Magnetic

KVPZ16S-200 KF16 25 15 1.5 12.7 KF-1 304L Kovar




VPZ38LAS-200 NW35CF 70 38 1.5 12.7 CF-2 304L Kovar


VPZ38LAS-LN-200 NW35CF 70 38 1.5 12.7 CF-2 316LN Kovar


KVPZ40/32S-200 KF40 55 32 1.5 12.7 KF-1 304L Kovar


KVPZ50S-200 KF50 75 38 1.5 15 KF-3 304L Kovar

VPZ64S-200 NW63CF 114 63 2 17.4 CF-1 304L Kovar

VPZ64S-LN-200 NW63CF 114 63 2 17.4 CF-1 316LN Kovar

VPZ64S-NM-200 NW63CF 114 63 2 17.4 CF-1 316LN Non-Magnetic

ISO63SVPZ-200 ISO63 95 38 1.5 12 ISO-1 304L Kovar




ISO100SVPZ-200 ISO100 130 63 2 12 ISO-2 304L Kovar


VPZ150S-LN-200 NW150CF 203 136 4 22.3 CF-3 316LN Kovar

VPZ150S-NM-200 NW150CF 203 136 4 22.3 CF-3 316LN Non-Magnetic

ISO160SVPZ-200 ISO160 180 89 2.5 12 ISO-3 304L Kovar


200°C Sapphire Zero

Length Viewports


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High Temperature Sapphire Zero Length Viewports

Specification

Seal Type

Maximum

Temperature

Braze

300 °C


High temperature

Sapphire Zero

Length Viewports

Maximum Rate of

Temperature Change

Leak Rate

Pressure Range

Surface Quality

Flatness

3 °C per minute



60/40 scratch/dig

Torr Scientific sapphire viewports are offered on CF flanges. The viewports comprise a high quality optic with

precise flatness, parallelism, scratch and dig specifications. The single crystal sapphire windows have excellent

optical, physical and chemical properties. The hardest of the oxide crystals, sapphire retains its high strength

at high temperatures. Sapphire has a low coefficient of thermal expansion and low fluorescence, good resistance

to thermal shock and scratching making this an excellent material for IR transmitting optics and robust

applications. C-cut sapphire is selected for Torr Scientific sapphire viewports to minimise the effects of birefringence.

The ultra high vacuum (UHV) CF versions are offered using high grade 316LN stainless steel flanges.

Non-magnetic viewports are offered for low energy applications or surface science applications needing low

magnetic fields. The non-magnetic viewports use a non-magnetic weld ring instead of the regular kovar weld

ring. TSL viewports are manufactured in cleanroom conditions and helium leak tested, cleaned and packed

to UHV standards. The rugged construction of the sapphire viewports allows repeated bake-out to 300 °C

with UHV performance, whilst the window offers broadband optical transmission through vacuum UV, visible

to near infra-red. Various anti-reflective coatings to match customer reflectance requirements are processed

at TSL and available as options listed in the AR coated viewport data sheets. Non-standard viewports can be

manufactured on request, including re-entrant style microscope/camera viewports. Annealed copper gaskets

and other component accessories are also supplied by TSL.

< 8λ

Transmission Curve - Sapphire


34

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High Temperature Sapphire Zero Length Viewports

CF-1 CF-2 CF-3

Part Number

Flange

Type

A

(mm)

B

(mm)

C

(mm)

D

(mm)

Diagram

Flange

Material

Weld Ring

Material

VPZ16S NW16CF 34 15 1.5 12.7 CF-1 304L Kovar

VPZ16S-LN NW16CF 34 15 1.5 12.7 CF-1 316LN Kovar

VPZ16S-NM NW16CF 34 15 1.5 12.7 CF-1 316LN Non-Magnetic



VPZ38LAS NW35CF 70 38 1.5 12.7 CF-2 304L Kovar

VPZ38S-LN NW35CF 70 32 1.5 12.7 CF-1 316LN Kovar

VPZ38LAS-LN NW35CF 70 38 1.5 12.7 CF-2 316LN Kovar


VPZ64S-NM NW63CF 114 63 2 17.4 CF-1 316LN Non-Magnetic


VPZ150S-NM NW150CF 203 136 4 22.3 CF-3 316LN Non-Magnetic

High Temperature

Sapphire Zero

Length Viewports


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Zinc Selenide Zero Length Viewports

Specification

Seal Type

Maximum

Temperature

Bond

120 °C


Zinc Selenide Zero

Length Viewports

Maximum Rate of

Temperature Change

Leak Rate

Pressure Range

Surface Quality

Flatness <2λ

3 °C per minute



60/40 scratch/dig

Torr Scientific zinc selenide viewports are offered in CF, ISO and KF flange styles. The viewports

comprise a laser quality zinc selenide optic with precise flatness, parallelism, scratch and dig specifications.

The ultra high vacuum (UHV) CF versions are offered using high grade 304L or 316LN



weld ring instead of the regular kovar weld ring. Flanges in 304L stainless steel are used for the high

vacuum KF and ISO viewports. TSL viewports are manufactured in cleanroom conditions and helium

leak tested, cleaned and packed to UHV standards. The rugged construction of the zinc selenide

viewports allows bake-out to a maximum of 120 °C with UHV performance, whilst the window offers

broadband optical transmission to extreme infra-red. Options with anti-reflective coatings are

also offered. Non-standard viewports can be manufactured on request, including re-entrant style


supplied by TSL.

Transmission Curve - Zinc Selenide


36

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Zinc Selenide Zero Length Viewports

CF-1

KF-1

ISO-1

CF-2

KF-2

ISO-2

CF-3

KF-3

ISO-3

Zinc Selenide Zero

Length Viewports

Part Number

Flange

Type

A

(mm)

B

(mm)

C

(mm)

D

(mm)

Diagram

Flange

Material

BVPZ16ZnSe NW16CF 34 15 1.5 12.7 CF-1 304L Kovar

BVPZ16ZnSe-LN NW16CF 34 15 1.5 12.7 CF-1 316LN Kovar

Weld Ring

Material

BVPZ16ZnSe-NM NW16CF 34 15 1.5 12.7 CF-1 316LN Non-Magnetic

BKVPZ16ZnSe KF16 25 15 1.5 15 KF-1 304L Kovar

BKVPZ25ZnSe KF25 40 20 2 18.5 KF-1 304L Kovar

BVPZ38ZnSe NW35CF 70 32 3 12.7 CF-1 304L Kovar

BVPZ38LAZnSe NW35CF 70 38 3.75 12.7 CF-2 304L Kovar

BVPZ38ZnSe-LN NW35CF 70 32 3 12.7 CF-1 316LN Kovar

BVPZ38LAZnSe-LN NW35CF 70 38 3.75 12.7 CF-2 316LN Kovar

BVPZ38ZnSe-NM NW35CF 70 32 3 12.7 CF-1 316LN Non-Magnetic

BKVPZ40/32ZnSe KF40 55 32 3 12.7 KF-1 304L Kovar

BKVPZ40ZnSe KF40 55 38 3.75 18.5 KF-2 304L Kovar

BKVPZ50ZnSe KF50 75 38 3.75 15 KF-3 304L Kovar

BVPZ64ZnSe NW63CF 114 63 5 17.4 CF-1 304L Kovar

BVPZ64ZnSe-LN NW63CF 114 63 5 17.4 CF-1 316LN Kovar

BVPZ64ZnSe-NM NW63CF 114 63 5 17.4 CF-1 316LN Non-Magnetic

BISO63VPZZnSe ISO63 95 38 3.75 12 ISO-1 304L Kovar




BISO100VPZZnSe ISO100 130 63 5 12 ISO-2 304L Kovar




BISO160VPZZnSe ISO160 180 89 6.5 12 ISO-3 304L Kovar



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Magnesium Fluoride Zero Length Viewports

Specification

Seal Type

Bond



Magnesium

Fluoride Zero Length

Viewports

Maximum Rate of

Temperature Change

Leak Rate

Pressure Range

Surface Quality

Flatness λ/4

3 °C per minute



60/40 scratch/dig

Torr Scientific magnesium fluoride viewports are offered in CF, ISO and KF flange styles. The clean,

UHV CF versions are offered using 304L or 316LN stainless steel flanges. Non-magnetic viewports

are offered as standard using annealed stainless steel weld rings and high grade 316LN and CF

flanges. Flanges in 304L stainless steel are used for the high vacuum KF and ISO viewports. The rugged,

bonded construction of the magnesium fluoride viewports allows bake-out to a maximum of

120 °C with ultra high vacuum (UHV) performance whilst the window offers extended broadband

optical transmission from deep UV to the infra-red. Specially coated optics optimised to minimise

reflectance at customer specified wavelength can be quoted on request. Non-standard viewports

can be manufactured on request, including re-entrant style microscope/camera viewports. Annealed

copper gaskets and other component accessories are also supplied by TSL.

Transmission Curve - Magnesium Fluoride


38

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Magnesium Fluoride Zero Length Viewports

CF-1

KF-1

ISO-1

CF-2

CF-3

KF-2

KF-3

ISO-2

ISO-3

Magnesium

Fluoride Zero Length

Viewports

Part Number

Flange

Type

A

(mm)

B

(mm)

C

(mm)

D

(mm)

Flange

Material

BVPZ16MgF2 NW16CF 34 15 2.5 12.7 CF-1 304L 316L

Weld Ring

Material

BVPZ16MgF2-NM NW16CF 34 15 2.5 12.7 CF-1 316LN 316L Annealed Yes

BKVPZ16MgF2 KF16 40 15 2.5 15 KF-1 304L 316L

BKVPZ25MgF2 KF25 40 20 3 18.5 KF-1 304L 316L

BVPZ38MgF2 NW35CF 70 32 3 12.7 CF-1 304L 316L

BVPZ38LAMgF2 NW35CF 70 38 4 12.7 CF-2 304L 316L

BVPZ38MgF2-NM NW35CF 70 32 3 12.7 CF-1 316LN 316L Annealed Yes

BKVPZ40/32MgF2 KF40 55 32 3 12.7 KF-1 304L 316L

BKVPZ40MgF2 KF40 55 38 4 18.5 KF-2 304L 316L

BKVPZ50MgF2 KF50 75 38 4 15 KF-3 304L 316L

BVPZ64MgF2 NW63CF 114 63 5 17.4 CF-1 304L 316L

BVPZ64MgF2-NM NW63CF 114 63 5 17.4 CF-1 316LN 316L Annealed Yes

BISO63VPZMgF2 ISO63 95 38 4 12 ISO-1 304L 316L



BISO100VPZMgF2 ISO100 130 63 5 12 ISO-2 304L 316L



BISO160VPZMgF2 ISO160 180 89 6.5 12 ISO-3 304L 316L


Diagram

Non-

Magnetic


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Calcium Fluoride Zero Length Viewports

Specification

Seal Type

Bond



Calcium Fluoride

Zero Length

Viewports

Maximum Rate of

Temperature Change

Leak Rate

Pressure Range

Surface Quality

Flatness λ/4

3 °C per minute



60/40 scratch/dig

Torr Scientific calcium fluoride viewports are offered in CF, ISO and KF flange styles. The clean, UHV

CF versions are offered using 304L or 316LN stainless steel flanges. Non-magnetic viewports are

offered as standard using annealed stainless steel weld rings and high grade 316LN and CF flanges.

Flanges in 304L stainless steel are used for the high vacuum KF and ISO viewports. The rugged,

bonded construction of the calcium fluoride viewports allows bake-out to a maximum of 120 °C

with ultra high vacuum (UHV) performance whilst the window offers extended broadband optical

transmission from deep UV to the infra-red. Specially coated optics optimised to minimise reflectance

at customer specified wavelength can be quoted on request. Non-standard viewports can

be manufactured on request, including re-entrant style microscope/camera viewports. Annealed


Transmission Curve - Calcium Fluoride


40

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Calcium Fluoride Zero Length Viewports

CF-1

KF-1

ISO-1

CF-2

KF-2

ISO-2

Calcium Fluoride

Zero Length

Viewports

CF-3

KF-3

ISO-3

Part Number

Flange

Type

A

(mm)

B

(mm)

C

(mm)

D

(mm)

Flange

Material

BVPZ16CaF2 NW16CF 34 15 1.5 12.7 CF-1 304L 316L

Weld Ring

Material

BVPZ16CaF2-NM NW16CF 34 15 1.5 12.7 CF-1 316LN 316L Annealed Yes

BKVPZ16CaF2 KF16 40 15 1.5 15 KF-1 304L 316L

BKVPZ25CaF2 KF25 40 20 2 18.5 KF-1 304L 316L

BVPZ38CaF2 NW35CF 70 32 3 12.7 CF-1 304L 316L

BVPZ38LACaF2 NW35CF 70 38 3.5 12.7 CF-2 304L 316L

BVPZ38CaF2-NM NW35CF 70 32 3 12.7 CF-1 316LN 316L Annealed Yes

BKVPZ40/32CaF2 KF40 55 32 3 12.7 KF-1 304L 316L

BKVPZ40CaF2 KF40 55 38 3.5 18.5 KF-2 304L 316L

BKVPZ50CaF2 KF50 75 38 3.5 15 KF-3 304L 316L



BISO63VPZCaF2 ISO63 95 38 3.5 12 ISO-2 304L 316L



BISO100VPZCaF2 ISO100 130 63 5 12 ISO-2 304L 316L

Diagram

Non-

Magnetic


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Barium Fluoride Zero Length Viewports

Specification

Seal Type

Bond



Barium Fluoride

Zero Length

Viewports

Maximum Rate of Temperature

Change

Leak Rate

Pressure Range

Surface Quality

Flatness λ/4

3 °C per minute



60/40 scratch/dig

Torr Scientific barium fluoride viewports are offered in CF, ISO and KF flange styles. The clean, UHV

CF versions are offered using 304L or 316LN stainless steel flanges. Non-magnetic viewports are

offered as standard using annealed stainless steel weld rings and high grade 316LN and CF flanges.

Flanges in 304L stainless steel are used for the high vacuum KF and ISO viewports. The rugged,

bonded construction of the barium fluoride viewports allows bake-out to a maximum of 120 °C

with ultra high vacuum (UHV) performance whilst the window offers extended broadband optical

transmission from deep UV to the infra-red. Specially coated optics optimised to minimise reflectance

at customer specified wavelength can be quoted on request. Non-standard viewports can

be manufactured on request, including re-entrant style microscope/camera viewports. Annealed


Transmission Curve - Barium Fluoride


42

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Barium Fluoride Zero Length Viewports

CF-1

KF-1

ISO-1

CF-2

KF-2

ISO-2

Barium Fluoride

Zero Length

Viewports

CF-3

KF-3

ISO-3

Part Number

Flange

Type

A

(mm)

B

(mm)

C

(mm)

D

(mm)

Flange

Material

BVPZ16BaF2 NW16CF 34 15 2 12.7 CF-1 304L 316L

Weld Ring

Material

BVPZ16BaF2-NM NW16CF 34 15 2 12.7 CF-1 316LN 316L Annealed Yes

BKVPZ16BaF2 KF16 40 15 2 15 KF-1 304L 316L

BKVPZ25BaF2 KF25 40 20 3 18.5 KF-1 304L 316L


BVPZ38LABaF2 NW35CF 70 38 5 12.7 CF-2 304L 316L


BKVPZ40/32BaF2 KF40 55 32 4 12.7 KF-1 304L 316L

BKVPZ40BaF2 KF40 55 38 5 18.5 KF-2 304L 316L

BKVPZ50BaF2 KF50 75 38 5 15 KF-3 304L 316L



BISO63VPZBaF2 ISO63 95 38 5 12 ISO-2 304L 316L



BISO100VPZBaF2 ISO100 130 63 7 12 ISO-2 304L 316L

Diagram

Non-

Magnetic


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CVD Diamond UHV Viewports

Specification

Seal Type

Braze

Maximum Temperature

450 °C 304L, 600 °C 316LN


CVD Diamond

UHV Viewports

Maximum Rate of

Temperature Change

Window Roughness

Leak Rate

Pressure Range

3 °C per minute

30nm Ra



Torr Scientific CVD Diamond UHV Viewports are offered as standard in CF flanges, but can be supplied

in ISO, KF or custom designed flanges on request. The viewports comprise a diamond window

which is synthetically produced by a chemical vapour deposition (CVD) process. The ultra high

vacuum (UHV) CF versions are offered using high grade 304L or 316LN stainless steel flanges. TSL

viewports are manufactured in cleanroom conditions and helium leak tested, cleaned and packed

to UHV standards. The rugged construction of the CVD Diamond viewports allows repeated bakeout

with UHV performance. The transmission properties of the CVD Diamond extend from visible

through FIR to beyond 100 microns. The window is polished to a surface roughness of 30nm Ra,

has high thermal conductivity and good bio compatibility. Various anti-reflective coatings to match

customer reflectance requirements are also processed at TSL. Non-standard viewports can be manufactured

on request, including re-entrant style microscope/camera viewports. Annealed copper

gaskets and other component accessories are also supplied by TSL.

Transmission Curve - CVD Diamond


44

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CVD Diamond UHV Viewports

CF-1

CF-2

CVD Diamond

UHV Viewports

Part Number

Flange

Type

A

(mm)

B

(mm)

C

(mm)

D

(mm)

Diagram

Flange

Material

Window

Grade

VPZ16CVDDX NW16CF 34 15 0.5 12.7 CF-1 304L X-ray

VPZ16CVDD NW16CF 34 15 0.5 12.7 CF-1 304L Optical

VPZ16CVDDX-LN NW16CF 34 15 0.5 12.7 CF-1 316LN X-ray

VPZ16CVDD-LN NW16CF 34 15 0.5 12.7 CF-1 316LN Optical

VPZ38/15CVDDX NW35CF 70 15 0.5 12.7 CF-1 304L X-ray

VPZ38/15CVDD NW35CF 70 15 0.5 12.7 CF-1 304L Optical

VPZ38/15CVDDX-LN NW35CF 70 15 0.5 12.7 CF-1 316LN X-ray

VPZ38/15CVDD-LN NW35CF 70 15 0.5 12.7 CF-1 316LN Optical

VPZ38/20CVDDX NW35CF 70 20 0.5 12.7 CF-2 304L X-ray

VPZ38/20CVDD NW35CF 70 20 0.5 12.7 CF-2 304L Optical

VPZ38/20CVDDX-LN NW35CF 70 20 0.5 12.7 CF-2 316LN X-ray

VPZ38/20CVDD-LN NW35CF 70 20 0.5 12.7 CF-2 316LN Optical


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Copyright ©

Quartz Natural Z-Cut Zero Length Viewports

Specification

Seal Type

Maximum

Temperature

Bond

120 °C


Maximum Rate of

Temperature Change

3 °C per minute

Quartz Natural

Z-Cut Zero Length

Viewports

Leak Rate

Pressure Range

Surface Quality

Parallelism

Torr Scientific Z-Cut natural quartz viewports are offered in CF, ISO and KF flange styles. The viewports

comprise a high quality natural quartz optic with precise flatness, parallelism, scratch and dig specifications.

One of the best materials for transmission of wavelengths above 50 µm is z-cut crystal quartz,

so z-cut quartz windows are popular as THz windows. It is important that z-cut crystal quartz windows

are also transparent in the visible spectrum allowing easy adjustment with a HeNe laser and do not

change the state of light polarization. Z-cut quartz also has excellent transparency in the vacuum UV

portion of the spectrum and is therefore a popular window material for use in UV spectroscopy and

UV lithography. The ultra high vacuum (UHV) CF versions are offered using high grade 304L or 316LN

stainless steel flanges. Non-magnetic viewports are offered for low energy applications or surface science

applications needing low magnetic fields. The non-magnetic viewports use a non-magnetic weld

ring instead of the regular kovar weld ring. Flanges in 304L stainless steel are used for the high vacuum

KF and ISO viewports. TSL viewports are manufactured in cleanroom conditions and helium leak tested,

cleaned and packed to UHV standards. The rugged construction of the quartz viewports allows bake-out

to a maximum of 120 °C with UHV performance. Options with anti-reflective coatings are also offered.

Non-standard viewports can be manufactured on request, including re-entrant style microscope/camera

viewports. Annealed copper gaskets and other component accessories are also supplied by TSL.

Transmission Curve - Quartz Natural Z-Cut

Flatness λ/2


1 bar <1x10 -9 mbar

20/10 scratch/dig

< 3 arc minutes


46

Copyright ©


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Quartz Natural Z-Cut Zero Length Viewports

CF-1

KF-1

ISO-1

CF-2

KF-2

ISO-2

Quartz Natural

Z-Cut Zero Length

Viewports

CF-3

KF-3

ISO-3

Part Number

Flange

Type

A

(mm)

B

(mm)

C

(mm)

D

(mm)

Diagram

Flange

Material

Weld Ring

Material

BVPZ16NQZ NW16CF 34 15 1.5 12.7 CF-1 304L Kovar

BVPZ16NQZ-NM NW16CF 34 15 1.5 12.7 CF-1 316LN Non-Magnetic

BKVPZ16NQZ KF16 40 15 1.5 12.7 KF-1 304L Kovar

BKVPZ25NQZ KF25 40 20 3 18.5 KF-1 304L Kovar

BVPZ38NQZ NW35CF 70 32 3 12.7 CF-1 304L Kovar

BVPZ38LANQZ NW35CF 70 38 3.5 12.7 CF-2 304L Kovar

BVPZ38NQZ-NM NW35CF 70 32 3 12.7 CF-1 316LN Non-Magnetic

BKVPZ40/32NQZ KF40 55 32 3 12.7 KF-1 304L Kovar

BKVPZ40NQZ KF40 55 38 3.5 18.5 KF-2 304L Kovar

BKVPZ50NQZ KF50 75 38 3.5 15 KF-3 304L Kovar

BVPZ64NQZ NW63CF 114 63 4.5 17.4 CF-1 304L Kovar

BVPZ64NQZ-NM NW63CF 114 63 4.5 17.4 CF-1 316LN Non-Magnetic

BISO63VPZNQZ ISO63 95 38 3.5 12 ISO-1 304L Kovar

BVPZ100NQZ NW100CF 152 89 6 19.9 CF-3 304L Kovar

BVPZ100NQZ-NM NW100CF 152 89 6 19.9 CF-3 316LN Non-Magnetic

BISO100VPZNQZ ISO100 130 63 4.5 12 ISO-2 304L Kovar

BISO160VPZNQZ ISO160 180 89 6 12 ISO-3 304L Kovar


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Differentially-pumped Viewports

Specification

Seal Type

Maximum

Temperature

Kalrez® O-ring

250 °C


Differentially-pumped

Viewports

Maximum Rate of

Temperature Change

Leak Rate

Pressure range

3 °C per minute



Surface quality 60/40 scratch/dig

Flatness <2λ

TSL differentially-pumped o-ring sealed viewports are the ideal choice when optical flatness is

important. Kalrez o-rings are offered as standard, allowing a maximum temperature of 250 °C,

with alternative o-ring materials available on request. 304L stainless steel CF flange with anodised

aluminium retainer is offered as standard with 316LN flanges available as a non-magnetic option.

CF and KF flanges and VCR fittings are available choices for the pumping port.

TSL is pleased to offer an industry-leading choice of optics in its differentially-pumped viewports.

Popular choices include fused silica, sapphire, natural quartz, ZnSe, Cleartran, CaF2, MgF2, BaF2, LiF,

CSi, KBr and KRS5; requests for other optic materials are welcomed.

Anti-reflective coatings to match customer reflectance requirements are also processed at TSL

and can be applied to differentially-pumped viewports. Please advise the wavelengths or ranges

required for your application when enquiring.

Diaphragm pumps for differential-pumping are also supplied by TSL, along with a range of

pumping lines, bolt-up kits and annealed gaskets.

48

Copyright ©


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SECTION 2

Viewports with Anti-Reflective

Coatings

SECTION 2

VIEWPORTS WITH ANTI-REFLECTIVE COATINGS

Fused Silica UHV Laser Viewports With ’VAR’ Anti-Reflective Coatings.......................................50

Fused Silica UHV Viewports With Anti-Reflective Coatings..............................................................52

Fused Silica UHV Viewports With Broadband Anti-Reflective Coatings ......................................54

Fused Silica UHV Viewports With ’WAR’ Anti-Reflective Coatings.................................................56

Kodial Zero Length Viewports With Anti-Reflective Coatings.........................................................58

Kodial Zero Length Viewports With Broadband Anti-Reflective Coatings..................................60

Kodial Zero Length Viewports With ’VAR’ Anti-Reflective Coatings..............................................62

Kodial Zero Length Viewports With ’WAR’ Anti-Reflective Coatings............................................64

Sapphire Viewports with Anti-Reflective Coatings...............................................................................66

Sapphire Viewports with Broadband Anti-Reflective Coatings .......................................................68

Sapphire Viewports with ‘VAR’ Anti-Reflective Coatings...................................................................70

AR Coated Zinc Selenide Zero Length Viewports.................................................................................73

49

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Fused Silica UHV Laser Viewports

with ‘VAR’ Anti-Reflective Coatings

Specification

Fused Silica UHV

Laser Viewports with

‘VAR’ Anti-Reflective

Coatings

* (note, varies with wavelength, pulse width, laser type and

cleanliness of optic)

Seal Type

Maximum

Temperature

Minimum

Temperature

Maximum Rate

of Temperature

Change

Leak Rate



Flatness

Laser Damage

Threshold *

Coating

Reflectance

Torr Scientific laser viewports are offered with a two-layer ‘VAR’ anti-reflective coating on both sides

of the window optimised to a customer specified laser wavelength. The coating reduces reflection

to below 0.5% per face or 1% total at the wavelength specified. Please advise the laser wavelength

with your enquiry or order. Wavelengths between 240 nm and 1550 nm can be accepted as standard,

although coatings for other wavelengths can be quoted on request. Viewports with coatings

for a wavelength range can also be offered. The viewports comprise a high purity laser quality fused

silica optic with precise flatness, parallelism, scratch and dig specifications. The ultra high vacuum

(UHV) CF versions are offered using high grade 304L or 316LN stainless steel flanges. Non-magnetic

viewports are offered for low energy applications or surface science applications needing low

magnetic fields. The non-magnetic viewports use a non-magnetic weld ring instead of the regular

kovar weld ring. TSL viewports are manufactured in clean room conditions and helium leak tested,

cleaned and packed to UHV standards. The rugged construction of the fused silica viewports allows

repeated bake-out with UHV performance, whilst the window offers broadband optical transmission

through deep UV, visible to near infra-red. Non-standard viewports can be manufactured on

request, including re-entrant style microscope/camera viewports. Annealed copper gaskets and


Braze

200 °C

minus 20 °C

3 °C per minute



20/10 scratch/dig

< 8λ

CW Continuous Wave - 500 W/cm 2 at 530nm Pulsed

2 J/cm 2 at 530 nm and 10 ns pulse width

2-layer 'VAR' coating optimised to customer specified

wavelength between 240 nm and 1550 nm

< 0.5% per face 1% total at the specified wavelength

Reflectance Curve

The TSL UV-Vis Spectrophotometer

Please note that the optical reflectance curves are approximations and should be used for reference only

50

Copyright ©


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Fused Silica UHV Laser Viewports


CF-1

KF-1

ISO-1

CF-2

KF-2

ISO-2

CF-3

Part Number

Flange

Type

A

(mm)

KF-3

B

(mm)

C

(mm)

D

(mm)

Diagram

ISO-3

Flange

Material

VPZ16QVAR NW16CF 34 15 1.5 12.7 CF-1 304L Kovar

VPZ16QVAR-LN NW16CF 34 15 1.5 12.7 CF-1 316LN Kovar

Weld Ring

Material

VPZ16QVAR-NM NW16CF 34 15 1.5 12.7 CF-1 316LN Non-Magnetic

VPZ16LAQVAR NW16CF 34 15.5 1.5 9 CF-1 304L Kovar

VPZ16LAQVAR-LN NW16CF 34 15.5 1.5 9 CF-1 316LN Kovar

KVPZ16QVAR KF16 25 15 1.5 15 KF-1 304L Kovar

KVPZ25QVAR KF25 40 20 2 18.5 KF-1 304L Kovar

VPZ38QVAR NW35CF 70 32 3 12.7 CF-1 304L Kovar

VPZ38LAQVAR NW35CF 70 38 3.5 12.7 CF-2 304L Kovar

VPZ38QVAR-LN NW35CF 70 32 3 12.7 CF-1 316LN Kovar

VPZ38QLAVAR-LN NW35CF 70 38 3.5 12.7 CF-2 316LN Kovar

VPZ38QVAR-NM NW35CF 70 32 3 12.7 CF-1 316LN Non-Magnetic

KVPZ40/32QVAR KF40 55 32 3 12.7 KF-1 304L Kovar

KVPZ40QVAR KF40 55 38 3.5 18.5 KF-2 304L Kovar

KVPZ50QVAR KF50 75 38 3.5 15 KF-3 304L Kovar

ISO63QVPZVAR ISO63 95 38 3.5 12 ISO-1 304L Kovar




VPZ100QVAR NW100CF 152 89 6 19.9 CF-3 304L Kovar

VPZ100QVAR-LN NW100CF 152 89 6 19.9 CF-3 316LN Kovar

VPZ100QVAR-NM NW100CF 152 89 6 19.9 CF-3 316LN Non-Magnetic

ISO100QVPZVAR ISO100 130 63 4.5 12 ISO-2 304L Kovar




ISO160QVPZVAR ISO160 180 89 6 12 ISO-3 304L Kovar


Fused Silica UHV

Laser Viewports with

‘VAR’ Anti-Reflective

Coatings

* Note that the position of the optic in the VPZ38LAQ design results in the coating being effective over the central >30mm only.

Please advise the laser wavelength with your enquiry or order. Wavelengths between 240nm and 1550nm can

be accepted as standard, although coatings for other wavelengths can be quoted on request.


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Fused Silica UHV Viewports

with Anti-Reflective Coatings

Specification

Seal Type

Braze



Maximum Rate of

Temperature Change

Leak Rate

Pressure Range

3 °C per minute



Fused Silica UHV

Viewports with

Anti-Reflective

Coatings

Torr Scientific fused silica viewports are offered with a single 1 x QWOT MgF2 layer anti-reflective

(AR) coating on both sides of the window optimised to a customer specified wavelength range.

Please advise the important wavelengths or wavelength range with your enquiry or order. Wavelength

ranges between 190 nm and 1550 nm can be accepted as standard, although coatings for

other wavelength ranges can be quoted on request. Viewports with ‘V’ coatings for a single wavelength

for laser applications and four-layer broadband low reflectance ‘BBAR’ coatings are also

offered. The viewports comprise a high purity laser quality fused silica optic with precise flatness,

parallelism, scratch and dig specifications. The ultra high vacuum (UHV) CF versions are offered using

high grade 304L or 316LN stainless steel flanges. Non-magnetic viewports are offered for low

energy applications or surface science applications needing low magnetic fields. The non-magnetic

viewports use a non-magnetic weld ring instead of the regular kovar weld ring. TSL viewports are

manufactured in cleanroom conditions and helium leak tested, cleaned and packed to UHV standards.

The rugged construction of the fused silica viewports allows repeated bake-out with UHV

performance, whilst the window offers broadband optical transmission through deep UV, visible to

near infra-red. Non-standard viewports can be manufactured on request, including re-entrant style


supplied by TSL.


Surface Quality

Flatness

Coating

20/10 scratch/dig

< 8λ

Single layer 1 x QWOT 'AR' coating

optimised to customer specified

wavelength range between 190 nm

and 1550 nm

The graph below shows typical before and after transmission effect of ‘AR’, ‘VAR’, and BBAR’ anti-reflective coatings

on Fused Silica Viewports. Customers should specify wavelength range of application with their enquiry.


52


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CF-1

KF-1

ISO-1

CF-2

KF-2

ISO-2

CF-3

Part Number

Flange

Type

A

(mm)

KF-3

B

(mm)

C

(mm)

D

(mm)

Diagram

ISO-3

Flange

Material

VPZ16QAR NW16CF 34 15 1.5 12.7 CF-1 304L Kovar

VPZ16QAR-LN NW16CF 34 15 1.5 12.7 CF-1 316LN Kovar

Weld Ring

Material

VPZ16QAR-NM NW16CF 34 15 1.5 12.7 CF-1 316LN Non-Magnetic

VPZ16LAQAR NW16CF 34 15.5 1.5 9 CF-1 304L Kovar

VPZ16LAQAR-LN NW16CF 34 15.5 1.5 9 CF-1 316LN Kovar

KVPZ16QAR KF16 25 15 1.5 15 KF-1 304L Kovar

KVPZ25QAR KF25 40 20 2 18.5 KF-1 304L Kovar

VPZ38QAR NW35CF 70 32 3 12.7 CF-1 304L Kovar

VPZ38LAQAR NW35CF 70 38 3.5 12.7 CF-2 304L Kovar

VPZ38QAR-LN NW35CF 70 32 3 12.7 CF-1 316LN Kovar

VPZ38QLAAR-LN NW35CF 70 38 3.5 12.7 CF-2 316LN Kovar

VPZ38QAR-NM NW35CF 70 32 3 12.7 CF-1 316LN Non-Magnetic

KVPZ40/32QAR KF40 55 32 3 12.7 KF-1 304L Kovar

KVPZ40QAR KF40 55 38 3.5 18.5 KF-2 304L Kovar

KVPZ50QAR KF50 75 38 3.5 15 KF-3 304L Kovar

ISO63QVPZAR ISO63 95 38 3.5 12 ISO-1 304L Kovar




VPZ100QAR NW100CF 152 89 6 19.9 CF-3 304L Kovar

VPZ100QAR-LN NW100CF 152 89 6 19.9 CF-3 316LN Kovar

VPZ100QAR-NM NW100CF 152 89 6 19.9 CF-3 316LN Non-Magnetic

ISO100QVPZAR ISO100 130 63 4.5 12 ISO-2 304L Kovar




ISO160QVPZAR ISO160 180 89 6 12 ISO-3 304L Kovar





Fused Silica UHV

Viewports with

Anti-Reflective

Coatings


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with Broadband Anti-Reflective Coatings

Fused Silica UHV

Viewports with Broadband

Anti-Reflective

Coatings

Torr Scientific fused silica viewports are offered with a four-layer broadband anti-reflective (BBAR)

coating on both sides of the window optimised to a customer specified laser wavelength range.

In many cases, the coating reduces reflection to below 0.5% per face or 1% total at the key wavelengths

specified. Please advise the important wavelengths or wavelength range with your enquiry

or order. Wavelength ranges between 240 nm and 1550 nm can be accepted as standard, although

coatings for other wavelength ranges can be quoted on request. Viewports with ‘V’ coatings for a

single wavelength for laser applications are also offered. The viewports comprise a high purity laser

quality fused silica optic with precise flatness, parallelism, scratch and dig specifications. The ultra

high vacuum (UHV) CF versions are offered using high grade 304L or 316LN stainless steel flanges.

Non-magnetic viewports are offered for low energy applications or surface science applications


the regular kovar weld ring. TSL viewports are manufactured in cleanroom conditions and helium



optical transmission through deep UV, visible to near infra-red. Non-standard viewports can be

manufactured on request, including re-entrant style microscope/camera viewports. Annealed copper


Reflectance Curve

Seal Type

Maximum

Temperature

Minimum

Temperature

Maximum Rate

of Temperature

Change

Leak Rate



Braze

200 °C

Flatness <8λ

Laser Damage

Threshold

Coating

Specification

minus 20 °C

3 °C per minute



20/10 scratch/dig





4-layer BBAR coating optimised to customer

specified wavelength range between 240 nm

and 1550 nm



54


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CF-1

KF-1

ISO-1

CF-2

KF-2

ISO-2

CF-3

Part Number

Flange

Type

A

(mm)

KF-3

B

(mm)

C

(mm)

D

(mm)

Diagram

ISO-3

Flange

Material

VPZ16QBBAR NW16CF 34 15 1.5 12.7 CF-1 304L Kovar

VPZ16QBBAR-LN NW16CF 34 15 1.5 12.7 CF-1 316LN Kovar

Weld Ring

Material

VPZ16QBBAR-NM NW16CF 34 15 1.5 12.7 CF-1 316LN Non-Magnetic

VPZ16LAQBBAR NW16CF 34 15.5 1.5 9 CF-1 304L Kovar

VPZ16LAQBBAR-LN NW16CF 34 15.5 1.5 9 CF-1 316LN Kovar

KVPZ16QBBAR KF16 25 15 1.5 15 KF-1 304L Kovar

KVPZ25QBBAR KF25 40 20 2 18.5 KF-1 304L Kovar

VPZ38QBBAR NW35CF 70 32 3 12.7 CF-1 304L Kovar

VPZ38LAQBBAR NW35CF 70 38 3.5 12.7 CF-2 304L Kovar

VPZ38QBBAR-LN NW35CF 70 32 3 12.7 CF-1 316LN Kovar

VPZ38QLABBAR-LN NW35CF 70 38 3.5 12.7 CF-2 316LN Kovar

VPZ38QBBAR-NM NW35CF 70 32 3 12.7 CF-1 316LN Non-Magnetic

KVPZ40/32QBBAR KF40 55 32 3 12.7 KF-1 304L Kovar

KVPZ40QBBAR KF40 55 38 3.5 18.5 KF-2 304L Kovar

KVPZ50QBBAR KF50 75 38 3.5 15 KF-3 304L Kovar

ISO63QVPZBBAR ISO63 95 38 3.5 12 ISO-1 304L Kovar




VPZ100QBBAR NW100CF 152 89 6 19.9 CF-3 304L Kovar

VPZ100QBBAR-LN NW100CF 152 89 6 19.9 CF-3 316LN Kovar

VPZ100QBBAR-NM NW100CF 152 89 6 19.9 CF-3 316LN Non-Magnetic

ISO100QVPZBBAR ISO100 130 63 4.5 12 ISO-2 304L Kovar




ISO160QVPZBBAR ISO160 180 89 6 12 ISO-3 304L Kovar





Fused Silica UHV

Viewports with Broadband

Anti-Reflective

Coatings


Skip to Contents

Copyright ©


with ‘WAR’ Anti-Reflective Coatings

Fused Silica UHV

Viewports with ‘WAR’

Anti-Reflective

Coatings

Torr Scientific fused silica viewports are offered with a four-layer broadband anti-reflective (WAR)

coating on both sides of the window optimised to a customer specified laser wavelengths. In many

cases, the coating reduces reflection to below 0.5% per face or 1% total at the key wavelengths

specified. Please advise the important wavelengths or wavelength range with your enquiry or order.

Wavelength ranges between 240 nm and 1550 nm can be accepted as standard, although

coatings for other wavelength ranges can be quoted on request. Viewports with ‘V’ coatings for a

single wavelength for laser applications are also offered. The viewports comprise a high purity laser

quality fused silica optic with precise flatness, parallelism, scratch and dig specifications. The ultra

high vacuum (UHV) CF versions are offered using high grade 304L or 316LN stainless steel flanges.

Non-magnetic viewports are offered for low energy applications or surface science applications


the regular kovar weld ring. TSL viewports are manufactured in cleanroom conditions and helium



optical transmission through deep UV, visible to near infra-red. Non-standard viewports can be

manufactured on request, including re-entrant style microscope/camera viewports. Annealed copper


Reflectance Curve

Seal Type

Maximum

Temperature

Minimum

Temperature

Maximum Rate

of Temperature

Change

Leak Rate



Braze

200 °C

Flatness <8λ

Laser Damage

Threshold

Coating

Specification

minus 20 °C

3 °C per minute



20/10 scratch/dig





4-layer WAR coating optimised to customer

specified wavelengths between 240 nm and

1550 nm



56


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CF-1

KF-1

ISO-1

CF-2

KF-2

ISO-2

CF-3

Part Number

Flange

Type

A

(mm)

KF-3

B

(mm)

C

(mm)

D

(mm)

Diagram

ISO-3

Flange

Material

VPZ16QWAR NW16CF 34 15 1.5 12.7 CF-1 304L Kovar

VPZ16QWAR-LN NW16CF 34 15 1.5 12.7 CF-1 316LN Kovar

Weld Ring

Material

VPZ16QWAR-NM NW16CF 34 15 1.5 12.7 CF-1 316LN Non-magnetic

VPZ16LAQWAR NW16CF 34 15.5 1.5 9 CF-1 304L Kovar

VPZ16LAQWAR-LN NW16CF 34 15.5 1.5 9 CF-1 316LN Kovar

KVPZ16QWAR KF16 25 15 1.5 15 KF-1 304L Kovar

KVPZ25QWAR KF25 40 20 2 18.5 KF-1 304L Kovar

VPZ38QWAR NW35CF 70 32 3 12.7 CF-1 304L Kovar

VPZ38LAQWAR NW35CF 70 38 3.5 12.7 CF-2 304L Kovar

VPZ38QWAR-LN NW35CF 70 32 3 12.7 CF-1 316LN Kovar

VPZ38QLAWAR-LN NW35CF 70 38 3.5 12.7 CF-2 316LN Kovar

VPZ38QWAR-NM NW35CF 70 32 3 12.7 CF-1 316LN Non-magnetic

KVPZ40/32QWAR KF40 55 32 3 12.7 KF-1 304L Kovar

KVPZ40QWAR KF40 55 38 3.5 18.5 KF-2 304L Kovar

KVPZ50QWAR KF50 75 38 3.5 15 KF-3 304L Kovar

ISO63QVPZWAR ISO63 95 38 3.5 12 ISO-1 304L Kovar




VPZ100QWAR NW100CF 152 89 6 19.9 CF-3 304L Kovar

VPZ100QWAR-LN NW100CF 152 89 6 19.9 CF-3 316LN Kovar

VPZ100QWAR-NM NW100CF 152 89 6 19.9 CF-3 316LN Non-magnetic

ISO100QVPZWAR ISO100 130 63 4.5 12 ISO-2 304L Kovar




ISO160QVPZWAR ISO160 180 89 6 12 ISO-3 304L Kovar


Fused Silica UHV

Viewports with ‘WAR’

Anti-Reflective

Coatings





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Copyright ©



Specification

Seal Type

Maximum

Temperature

Induction



Maximum Rate of

Temperature Change

3 °C per minute

Kodial Zero Length

Viewports with Anti-

Reflective Coatings

Torr Scientific Kodial viewports are offered with a single 1 x QWOT MgF2 layer anti-reflective (AR)

coating on both sides of the window optimised to a customer specified wavelength range. Please

advise the important wavelengths or wavelength range with your enquiry or order. Wavelength

ranges between 190 nm and 1550 nm can be accepted as standard, although coatings for other

wavelength ranges can be quoted on request. Viewports with ‘V’ coatings for a single wavelength

applications and four-layer broadband low reflectance ‘BBAR’ coatings are also offered.

Torr Scientific Kodial viewports are offered in CF, ISO and KF flange styles. The viewports comprise a

borosilicate glass optic which is sealed to a Kovar weld ring using an induction heater process. The

optic assemblies are TIG welded in to flanges and are helium leak tested and cleaned for ultra high

vacuum (UHV) conditions. The CF versions are offered using 304L or 316LN stainless steel flanges.

Flanges in 304L stainless steel are used for the high vacuum KF and ISO viewports. The rugged

construction of the Kodial viewports allows repeated bake-out with UHV performance, whilst the

window offers broadband optical transmission from the visible to near infra-red. Anti-reflective

coatings to match customer reflectance requirements are also processed at TSL. Please advise the

wavelength or wavelength ranges of your application and a reflectance curve will be prepared.

Non-standard viewports can be manufactured on request, including re-entrant style microscope/

camera viewports. Annealed copper gaskets and other component accessories are also supplied by

TSL.


Leak Rate

Pressure Range

Coating





wavelength range between

190 nm and 1550 nm

The graph below shows typical before and after transmission effect of ‘AR’, ‘VAR’, and BBAR’ anti-reflective

coatings on Kodial Viewports. Customers should specify wavelength range of application with their enquiry.

Kodial

Zero Length


58

Copyright ©


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CF-1

KF-1

ISO-1

Viewports With Anti-

CF-2

CF-3


(mm)

KF-2

KF-3

B

(mm)

C

(mm)

D

(mm)

ISO-2

ISO-3

Diagram

Flange

Material

Weld Ring

Material

VPZ16AR NW16CF 34 15 1 12.7 CF-1 304L Kovar

VPZ16AR-LN NW16CF 34 15 1 12.7 CF-1 316LN Kovar

KVPZ16AR KF16 25 15 1 12.7 KF-1 304L Kovar

KVPZ25AR KF25 40 20 1.5 18.5 KF-2 304L Kovar

VPZ38AR NW35CF 70 32 2.5 12.7 CF-1 304L Kovar

Kodial Zero Length

Viewports with Anti-

Reflective Coatings

VPZ38LAAR NW35CF 70 38 * 3 12.7 CF-2 304L Kovar

VPZ38AR-LN NW35CF 70 32 2.5 12.7 CF-1 316LN Kovar

VPZ38LAAR-LN NW35CF 70 38 * 3 12.7 CF-2 316LN Kovar

KVPZ40/32AR NW35CF 70 32 2.5 12.7 KF-1 316L Kovar

KVPZ40AR KF40 55 38 * 3 18.5 KF-3 304L Kovar

KVPZ50AR KF50 75 38 * 3 15 KF-3 304L Kovar

VPZ50AR NW50CF 86 38 * 3 16 CF-2 304L Kovar

ISO63VPZAR ISO63 95 38 * 3 12 ISO-1 304L Kovar


VPZ64LAAR NW63CF 114 65 3.5 17.4 CF-2 304L Kovar




ISO100VPZAR ISO100 130 63 3 12 ISO-2 304L Kovar

VPZ150AR NW150CF 203 136 6.5 22.3 CF-3 304L Kovar

VPZ100AR-LN NW150CF 203 136 6.5 22.3 CF-3 316LN Kovar

ISO160VPZAR ISO160 180 89 4 12 ISO-3 304L Kovar


* Note that the position of the optic in the VPZ38LA design results in the coating being effective over the central >30mm only.

Please advise the wavelength range of application with your enquiry or order. Wavelengths range

between 190nm and 1550nm can be accepted as standard, although coatings for other wavelengths

can be quoted on request.


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Copyright ©



Specification

Seal Type

Maximum

Temperature

Minimum

Temperature

Maximum Rate of

Temperature Change

Induction


minus 20 °C

3 °C per minute

Kodial Viewports

with Broadband Anti-

Reflective Coatings

Torr Scientific Kodial viewports are offered with a four-layer broadband anti-reflective (BBAR) coating

on both sides of the window optimised to a customer specified wavelength range. In many

cases, the coating reduces reflection to below 0.5% per face or 1% total at the key wavelengths

specified. Please advise the important wavelengths or wavelength range with your enquiry or order.

Wavelength ranges between 240 nm and 1550 nm can be accepted as standard, although coatings

for other wavelength ranges can be quoted on request. Viewports with ‘V’ coatings for a single

wavelength for laser applications are also offered. Torr Scientific Kodial viewports are offered in CF,

ISO and KF flange styles. The viewports comprise a borosilicate glass optic which is sealed to a Kovar

weld ring using an induction heater process. The optic assemblies are TIG welded in to flanges and

are helium leak tested and cleaned for ultra high vacuum (UHV) conditions. The CF versions are

offered using 304L or 316LN stainless steel flanges. Flanges in 304L stainless steel are used for the

high vacuum KF and ISO viewports. The rugged construction of the Kodial viewports allows repeated

bake-out with UHV performance, whilst the window offers broadband optical transmission from

the visible to near infra-red. Anti-reflective coatings to match customer reflectance requirements

are also processed at TSL. Please advise the wavelength or wavelength ranges of your application

and a reflectance curve will be prepared. Non-standard viewports can be manufactured on request,

including re-entrant style microscope/camera viewports. Annealed copper gaskets and other

component accessories are also supplied by TSL.

Reflectance Curve

Leak Rate

Pressure Range

Coating



4-layer BBAR coating optimised

to customer specified wavelength

range between 240 nm and 1550 nm



60

Copyright ©


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CF-1

KF-1

ISO-1

CF-2

KF-2

ISO-2

CF-3

KF-3


(mm)

B

(mm)

C

(mm)

D

(mm)

ISO-3

Diagram

Flange

Material

Weld Ring

Material

VPZ16BBAR NW16CF 34 15 1 12.7 CF-1 304L Kovar

VPZ16BBAR-LN NW16CF 34 15 1 12.7 CF-1 316LN Kovar

KVPZ16BBAR KF16 25 15 1 12.7 KF-1 304L Kovar

KVPZ25BBAR KF25 40 20 1.5 18.5 KF-2 304L Kovar

VPZ38BBAR NW35CF 70 32 2.5 12.7 CF-1 304L Kovar

VPZ38LABBAR NW35CF 70 38 * 3 12.7 CF-2 304L Kovar

VPZ38BBAR-LN NW35CF 70 32 2.5 12.7 CF-1 316LN Kovar

VPZ38LABBAR-LN NW35CF 70 38 * 3 12.7 CF-2 316LN Kovar

KVPZ40/32BBAR NW35CF 70 32 2.5 12.7 KF-1 316L Kovar

KVPZ40BBAR KF40 55 38 * 3 18.5 KF-3 304L Kovar

KVPZ50BBAR KF50 75 38 * 3 15 KF-3 304L Kovar

VPZ50BBAR NW50CF 86 38 * 3 16 CF-2 304L Kovar

ISO63VPZBBAR ISO63 95 38 * 3 12 ISO-1 304L Kovar


VPZ64LABBAR NW63CF 114 65 3.5 17.4 CF-2 304L Kovar




ISO100VPZBBAR ISO100 130 63 3 12 ISO-2 304L Kovar

VPZ150BBAR NW150CF 203 136 6.5 22.3 CF-3 304L Kovar

VPZ150BBAR-LN NW150CF 203 136 6.5 22.3 CF-3 316LN Kovar

ISO160VPZBBAR ISO160 180 89 4 12 ISO-3 304L Kovar



Kodial Viewports


Reflective Coatings

Please advise the wavelength range with your enquiry or order. Wavelengths range between

240nm and 1550nm can be accepted as standard, although coatings for other wavelengths can

be quoted on request.


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Copyright ©



Specification

Seal Type

Maximum

Temperature

Induction



Maximum Rate of

Temperature Change

Leak Rate

3 °C per minute


Kodial Viewports

with ‘VAR’ Anti-

Reflective Coatings

Pressure Range

Coating

Reflectance


2-layer 'VAR' coating optimised


between 240 nm and 1550 nm

< 0.5% per face 1% total at the

specified wavelength

Torr Scientific Kodial viewports are offered with a two-layer ‘VAR’ anti-reflective coating on both

sides of the window optimised to a customer specified wavelength. The coating reduces reflection

to below 0.5% per face or 1% total at the wavelength specified. Please advise the wavelength with

your enquiry or order. Wavelengths between 240 nm and 1550 nm can be accepted as standard,

although coatings for other wavelengths can be quoted on request. Viewports with coatings for a

wavelength range can also be offered. Torr Scientific Kodial viewports are offered in CF, ISO and KF

flange styles. The viewports comprise a borosilicate glass optic which is sealed to a Kovar weld ring

using an induction heater process. The optic assemblies are TIG welded in to flanges and are helium

leak tested and cleaned for ultra high vacuum (UHV) conditions. The CF versions are offered using

304L or 316LN stainless steel flanges. Flanges in 304L stainless steel are used for the high vacuum KF

and ISO viewports. The rugged construction of the Kodial viewports allows repeated bake-out with

UHV performance, whilst the window offers broadband optical transmission from the visible to near

infra-red. Anti-reflective coatings to match customer reflectance requirements are also processed at

TSL. Please advise the wavelength or wavelength ranges of your application and a reflectance curve

will be prepared. Non-standard viewports can be manufactured on request, including re-entrant

style microscope/camera viewports. Annealed copper gaskets and other component accessories

are also supplied by TSL.

Reflectance Curve



62

Copyright ©


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CF-1

KF-1

ISO-1

CF-2

KF-2

ISO-2

CF-3

KF-3


(mm)

B

(mm)

C

(mm)

D

(mm)

ISO-3

Diagram

Flange

Material

Weld Ring

Material

VPZ16VAR NW16CF 34 15 1 12.7 CF-1 304L Kovar

VPZ16VAR-LN NW16CF 34 15 1 12.7 CF-1 316LN Kovar

KVPZ16VAR KF16 25 15 1 12.7 KF-1 304L Kovar

KVPZ25VAR KF25 40 20 1.5 18.5 KF-2 304L Kovar

VPZ38VAR NW35CF 70 32 2.5 12.7 CF-1 304L Kovar

VPZ38LAVAR NW35CF 70 38 * 3 12.7 CF-2 304L Kovar

VPZ38VAR-LN NW35CF 70 32 2.5 12.7 CF-1 316LN Kovar

VPZ38LAVAR-LN NW35CF 70 38 * 3 12.7 CF-2 316LN Kovar

KVPZ40/32VAR NW35CF 70 32 2.5 12.7 KF-1 316L Kovar

KVPZ40VAR KF40 55 38 * 3 18.5 KF-3 304L Kovar

KVPZ50VAR KF50 75 38 * 3 15 KF-3 304L Kovar

VPZ50VAR NW50CF 86 38 * 3 16 CF-2 304L Kovar

ISO63VPZVAR ISO63 95 38 * 3 12 ISO-1 304L Kovar


VPZ64LAVAR NW63CF 114 65 3.5 17.4 CF-2 304L Kovar




ISO100VPZVAR ISO100 130 63 3 12 ISO-2 304L Kovar

VPZ150VAR NW150CF 203 136 6.5 22.3 CF-3 304L Kovar

VPZ150VAR-LN NW150CF 203 136 6.5 22.3 CF-3 316LN Kovar

ISO160VPZVAR ISO160 180 89 4 12 ISO-3 304L Kovar


Kodial Viewports


Reflective Coatings


Please advise the wavelength with your enquiry or order. Wavelengths between 240nm and

1550nm can be accepted as standard, although coatings for other wavelengths can be quoted on

request.


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Copyright ©



Specification

Seal Type

Maximum

Temperature

Minimum

Temperature

Maximum Rate of

Temperature Change

Induction


minus 20 °C

3 °C per minute

Leak Rate


Kodial Viewports

with ‘WAR’ Anti-

Reflective Coatings

Torr Scientific Kodial viewports are offered with a four-layer broadband anti-reflective (WAR) coating

on both sides of the window optimised to a customer specified wavelengths. In many cases,

the coating reduces reflection to below 0.5% per face or 1% total at the key wavelengths specified.

Please advise the important wavelengths or wavelength range with your enquiry or order. Wavelength

ranges between 240 nm and 1550 nm can be accepted as standard, although coatings for

other wavelength ranges can be quoted on request. Viewports with ‘V’ coatings for a single wavelength

for laser applications are also offered. Torr Scientific Kodial viewports are offered in CF, ISO

and KF flange styles. The viewports comprise a borosilicate glass optic which is sealed to a Kovar

weld ring using an induction heater process. The optic assemblies are TIG welded in to flanges and

are helium leak tested and cleaned for ultra high vacuum (UHV) conditions. The CF versions are

offered using 304L or 316LN stainless steel flanges. Flanges in 304L stainless steel are used for the

high vacuum KF and ISO viewports. The rugged construction of the Kodial viewports allows repeated

bake-out with UHV performance, whilst the window offers broadband optical transmission from

the visible to near infra-red. Anti-reflective coatings to match customer reflectance requirements

are also processed at TSL. Please advise the wavelength or wavelength ranges of your application

and a reflectance curve will be prepared. Non-standard viewports can be manufactured on request,

including re-entrant style microscope/camera viewports. Annealed copper gaskets and other


Reflectance Curve

Pressure Range

Coating


4-layer WAR coating optimised to

customer specified wavelengths




64

Copyright ©


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CF-1

KF-1

ISO-1

CF-2

KF-2

ISO-2

CF-3

Part Number

Flange

Type

KF-3

A

(mm)

B

(mm)

C

(mm)

D

(mm)

ISO-3

Diagram

Flange

Material

Weld Ring

Material

VPZ16WAR NW16CF 34 15 1 12.7 CF-1 304L Kovar

VPZ16WAR-LN NW16CF 34 15 1 12.7 CF-1 316LN Kovar

KVPZ16WAR KF16 25 15 1 12.7 KF-1 304L Kovar

KVPZ25WAR KF25 40 20 1.5 18.5 KF-2 304L Kovar

VPZ38WAR NW35CF 70 32 2.5 12.7 CF-1 304L Kovar

VPZ38LAWAR NW35CF 70 38 * 3 12.7 CF-2 304L Kovar

VPZ38WAR-LN NW35CF 70 32 2.5 12.7 CF-1 316LN Kovar

VPZ38LAWAR-LN NW35CF 70 38 * 3 12.7 CF-2 316LN Kovar

KVPZ40/32WAR NW35CF 70 32 2.5 12.7 KF-1 316L Kovar

KVPZ40WAR KF40 55 38 * 3 18.5 KF-3 304L Kovar

KVPZ50WAR KF50 75 38 * 3 15 KF-3 304L Kovar

VPZ50WAR NW50CF 86 38 * 3 16 CF-2 304L Kovar

ISO63VPZWAR ISO63 95 38 * 3 12 ISO-1 304L Kovar


VPZ64LAWAR NW63CF 114 65 3.5 17.4 CF-2 304L Kovar




ISO100VPZWAR ISO100 130 63 3 12 ISO-2 304L Kovar

VPZ150WAR NW150CF 203 136 6.5 22.3 CF-3 304L Kovar

VPZ150WAR-LN NW150CF 203 136 6.5 22.3 CF-3 316LN Kovar

ISO160VPZWAR ISO160 180 89 4 12 ISO-3 304L Kovar



Kodial Viewports

with ‘WAR’ Anti-

Reflective Coatings

Please advise the wavelength range with your enquiry or order. Wavelengths range between

240nm and 1550nm can be accepted as standard, although coatings for other wavelengths can



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Copyright ©

Sapphire viewports with Anti-Reflective Coatings

Specification

Seal Type

Braze

Maximum

Temperature


Maximum Rate of

Temperature Change

Leak Rate

200 °C

(KF & ISO versions 150 °C)

3 °C per minute


Pressure Range


Sapphire viewports

with Anti-Reflective

Coatings

Torr Scientific Sapphire viewports are offered with a single 1 x QWOT MgF2 layer anti-reflective (AR) coating

on both sides of the window optimised to a customer specified wavelength range. Please advise the important

wavelengths or wavelength range with your enquiry or order. Wavelength ranges between 190 nm and 1550 nm

can be accepted as standard, although coatings for other wavelength ranges can be quoted on request. Viewports

with ‘V’ coatings for a single wavelength applications and four-layer broadband low reflectance ‘BBAR’

coatings are also offered. Torr Scientific sapphire viewports are offered in CF, ISO and KF flange styles. The

viewports comprise a high quality optic with precise flatness, parallelism, scratch and dig specifications. The

single crystal sapphire windows have excellent optical, physical and chemical properties. The hardest of the

oxide crystals, sapphire retains its high strength at high temperatures. Sapphire has a low coefficient of thermal

expansion and low fluorescence, good resistance to thermal shock and scratching making this an excellent

material for IR transmitting optics and robust applications. C-cut sapphire is selected for Torr Scientific sapphire

viewports to minimise the effects of birefringence. The ultra high vacuum (UHV) CF versions are offered

using high grade 304L or 316LN stainless steel flanges. Non-magnetic viewports are offered for low energy

applications or surface science applications needing low magnetic fields. The non-magnetic viewports use a

non-magnetic weld ring instead of the regular kovar weld ring. Flanges in 304L stainless steel are used for

the high vacuum KF and ISO viewports. TSL viewports are manufactured in cleanroom conditions and helium

leak tested, cleaned and packed to UHV standards. The rugged construction of the sapphire viewports allows

repeated bake-out to 200 °C with UHV performance, whilst the window offers broadband optical transmission

through vacuum UV, visible to near infra-red. Non-standard viewports can be manufactured on request,

including re-entrant style microscope/camera viewports. Annealed copper gaskets and other component accessories

are also supplied by TSL.

AR Reflection Curve - Sapphire

Surface Quality

Flatness

Coating

60/40 scratch/dig

< 8λ



wavelength range between 190 nm

and 1550 nm



66

Copyright ©


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Sapphire viewports with Anti-Reflective Coatings

CF-1

KF-1

ISO-1

CF-2

KF-2

ISO-2

CF-3

Part Number

Flange

Type

KF-3

A

(mm)

B

(mm)

C

(mm)

D

(mm)

Diagram

ISO-3

Flange

Material

Weld Ring

Material

VPZ16S-200-AR NW16CF 34 15 1.5 12.7 CF-1 304L Kovar

VPZ16S-200-AR-LN NW16CF 34 15 1.5 12.7 CF-1 316LN Kovar

VPZ16S-200-AR-NM NW16CF 34 15 1.5 12.7 CF-1 316LN Non-Magnetic

KVPZ16S-200-AR KF16 25 15 1.5 12.7 KF-1 304L Kovar




VPZ38LAS-200-AR NW35CF 70 38 1.5 12.7 CF-2 304L Kovar


VPZ38LAS-200-AR-LN NW35CF 70 38 1.5 12.7 CF-2 316LN Kovar


KVPZ40/32S-200-AR KF40 55 32 1.5 12.7 KF-1 304L Kovar


KVPZ50S-200-AR KF50 75 38 1.5 15 KF-3 304L Kovar

VPZ64S-200-AR NW63CF 114 63 2 17.4 CF-1 304L Kovar

VPZ64S-200-AR-LN NW63CF 114 63 2 17.4 CF-1 316LN Kovar

VPZ64S-200-AR-NM NW63CF 114 63 2 17.4 CF-1 316LN Non-Magnetic

ISO63SVPZ-200-AR ISO63 95 38 1.5 12 ISO-1 304L Kovar




ISO100SVPZ-200-AR ISO100 130 63 2 12 ISO-2 304L Kovar


VPZ150S-200-AR-LN NW150CF 203 136 4 22.3 CF-3 316LN Kovar

VPZ150S-200-AR-NM NW150CF 203 136 4 22.3 CF-3 316LN Non-Magnetic

ISO160SVPZ-200-AR ISO160 180 89 2.5 12 ISO-3 304L Kovar


Sapphire viewports

with Anti-Reflective

Coatings


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Copyright ©

Sapphire viewports with

Broadband Anti-Reflective Coatings

Specification

Seal Type

Maximum

Temperature

Braze

200 °C



Maximum Rate of

Temperature Change

Leak Rate

Pressure Range

3 °C per minute



Sapphire viewports


Reflective Coatings

Surface Quality

Flatness

Coating

60/40 scratch/dig

< 8λ

4-layer BBAR coating optimised


range between 240 nm and

1550 nm

Torr Scientific Kodial viewports are offered with a four-layer broadband anti-reflective (BBAR) coating on both

sides of the window optimised to a customer specified wavelength range. In many cases, the coating reduces

reflection to below 0.5% per face or 1% total at the key wavelengths specified. Please advise the important

wavelengths or wavelength range with your enquiry or order. Wavelength ranges between 240 nm and 1550 nm

can be accepted as standard, although coatings for other wavelength ranges can be quoted on request. Viewports

with ‘V’ coatings for a single wavelength for laser applications are also offered. Torr Scientific sapphire

viewports are offered in CF, ISO and KF flange styles. The viewports comprise a high quality optic with precise

flatness, parallelism, scratch and dig specifications. The single crystal sapphire windows have excellent optical,

physical and chemical properties. The hardest of the oxide crystals, sapphire retains its high strength at high

temperatures. Sapphire has a low coefficient of thermal expansion and low fluorescence, good resistance to

thermal shock and scratching making this an excellent material for IR transmitting optics and robust applications.

C-cut sapphire is selected for Torr Scientific sapphire viewports to minimise the effects of birefringence.

The ultra high vacuum (UHV) CF versions are offered using high grade 304L or 316LN stainless steel flanges.

Non-magnetic viewports are offered for low energy applications or surface science applications needing low

magnetic fields. The non-magnetic viewports use a non-magnetic weld ring instead of the regular kovar weld

ring. Flanges in 304L stainless steel are used for the high vacuum KF and ISO viewports. TSL viewports are

manufactured in cleanroom conditions and helium leak tested, cleaned and packed to UHV standards. The

rugged construction of the sapphire viewports allows repeated bake-out to 200 °C with UHV performance,

whilst the window offers broadband optical transmission through vacuum UV, visible to near infra-red. Nonstandard

viewports can be manufactured on request, including re-entrant style microscope/camera viewports.

Annealed copper gaskets and other component accessories are also supplied by TSL.

Reflectance Curve



68


Copyright ©

Skip to Contents


Broadband Anti-Reflective Coatings

CF-1

KF-1

ISO-1

CF-2

KF-2

ISO-2

CF-3

Part Number

Flange

Type

KF-3

A

(mm)

B

(mm)

C

(mm)

D

(mm)

Diagram

ISO-3

Flange

Material

VPZ16S-200-BBAR NW16CF 34 15 1.5 12.7 CF-1 304L Kovar

VPZ16S-200-BBAR-LN NW16CF 34 15 1.5 12.7 CF-1 316LN Kovar

Weld Ring

Material

VPZ16S-200-BBAR-NM NW16CF 34 15 1.5 12.7 CF-1 316LN Non-Magnetic

KVPZ16S-200-BBAR KF16 25 15 1.5 12.7 KF-1 304L Kovar




VPZ38LAS-200-BBAR NW35CF 70 38 1.5 12.7 CF-2 304L Kovar


VPZ38LAS-200-BBAR-LN NW35CF 70 38 1.5 12.7 CF-2 316LN Kovar


KVPZ40/32S-200-BBAR KF40 55 32 1.5 12.7 KF-1 304L Kovar


KVPZ50S-200-BBAR KF50 75 38 1.5 15 KF-3 304L Kovar

VPZ64S-200-BBAR NW63CF 114 63 2 17.4 CF-1 304L Kovar

VPZ64S-200-BBAR-LN NW63CF 114 63 2 17.4 CF-1 316LN Kovar

VPZ64S-200-BBAR-NM NW63CF 114 63 2 17.4 CF-1 316LN Non-Magnetic

ISO63SVPZ-200-BBAR ISO63 95 38 1.5 12 ISO-1 304L Kovar




ISO100SVPZ-200-BBAR ISO100 130 63 2 12 ISO-2 304L Kovar


VPZ150S-200-BBAR-LN NW150CF 203 136 4 22.3 CF-3 316LN Kovar

VPZ150S-BBAR-NM NW150CF 203 136 4 22.3 CF-3 316LN Non-Magnetic

ISO160SVPZ-200-BBAR ISO160 180 89 2.5 12 ISO-3 304L Kovar


Sapphire viewports


Reflective Coatings


Skip to Contents

Copyright ©


‘VAR’ Anti-Reflective Coatings

Specification

Sapphire viewports


Reflective Coatings

Seal Type

Maximum

Temperature

Braze


Maximum Rate of

Temperature Change

Leak Rate

Pressure Range

Surface Quality

Flatness

Coating

Reflectance

200 °C


3 °C per minute



60/40 scratch/dig

< 8λ

2-layer 'VAR' coating optimised



< 0.5% per face 1% total at the

specified wavelength

Torr Scientific Sapphire viewports are offered with a two-layer ‘VAR’ anti-reflective coating on both sides of

the window optimised to a customer specified wavelength. The coating reduces reflection to below 0.5% per

face or 1% total at the wavelength specified. Please advise the laser wavelength with your enquiry or order.

Wavelengths between 240 nm and 1550 nm can be accepted as standard, although coatings for other wavelengths

can be quoted on request. Viewports with coatings for a wavelength range can also be offered. Torr

Scientific sapphire viewports are offered in CF, ISO and KF flange styles. The viewports comprise a high quality

optic with precise flatness, parallelism, scratch and dig specifications. The single crystal sapphire windows

have excellent optical, physical and chemical properties. The hardest of the oxide crystals, sapphire retains its

high strength at high temperatures. Sapphire has a low coefficient of thermal expansion and low fluorescence,

good resistance to thermal shock and scratching making this an excellent material for IR transmitting optics

and robust applications. C-cut sapphire is selected for Torr Scientific sapphire viewports to minimise the effects

of birefringence. The ultra high vacuum (UHV) CF versions are offered using high grade 304L or 316LN

stainless steel flanges. Non-magnetic viewports are offered for low energy applications or surface science applications


the regular kovar weld ring. Flanges in 304L stainless steel are used for the high vacuum KF and ISO viewports.

TSL viewports are manufactured in cleanroom conditions and helium leak tested, cleaned and packed to UHV

standards. The rugged construction of the sapphire viewports allows repeated bake-out to 200 °C with UHV

performance, whilst the window offers broadband optical transmission through vacuum UV, visible to near

infra-red. Non-standard viewports can be manufactured on request, including re-entrant style microscope/

camera viewports. Annealed copper gaskets and other component accessories are also supplied by TSL.

Reflectance Curve



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‘VAR’ Anti-Reflective Coatings

CF-1

KF-1

ISO-1

CF-2

KF-2

ISO-2

CF-3

Part Number

Flange

Type

KF-3

A

(mm)

B

(mm)

C

(mm)

D

(mm)

Diagram

ISO-3

Flange

Material

Weld Ring

Material

VPZ16S-200-VAR NW16CF 34 15 1.5 12.7 CF-1 304L Kovar

VPZ16S-200-VAR-LN NW16CF 34 15 1.5 12.7 CF-1 316LN Kovar

VPZ16S-200-VAR-NM NW16CF 34 15 1.5 12.7 CF-1 316LN Non-Magnetic

KVPZ16S-200-VAR KF16 25 15 1.5 12.7 KF-1 304L Kovar




VPZ38LAS-200-VAR NW35CF 70 38 1.5 12.7 CF-2 304L Kovar


VPZ38LAS-200-VAR-LN NW35CF 70 38 1.5 12.7 CF-2 316LN Kovar


KVPZ40/32S-200-VAR KF40 55 32 1.5 12.7 KF-1 304L Kovar


KVPZ50S-200-VAR KF50 75 38 1.5 15 KF-3 304L Kovar

VPZ64S-200-VAR NW63CF 114 63 2 17.4 CF-1 304L Kovar

VPZ64S-200-VAR-LN NW63CF 114 63 2 17.4 CF-1 316LN Kovar

VPZ64S-200-VAR-NM NW63CF 114 63 2 17.4 CF-1 316LN Non-Magnetic

ISO63SVPZ-200-VAR ISO63 95 38 1.5 12 ISO-1 304L Kovar




ISO100SVPZ-200-VAR ISO100 130 63 2 12 ISO-2 304L Kovar


VPZ150S-200-VAR-LN NW150CF 203 136 4 22.3 CF-3 316LN Kovar

VPZ150S-200-VAR-NM NW150CF 203 136 4 22.3 CF-3 316LN Non-Magnetic

ISO160SVPZ-200-VAR ISO160 180 89 2.5 12 ISO-3 304L Kovar


Sapphire viewports


Reflective Coatings


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AR Coated

Zinc Selenide Zero

Length Viewports

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AR Coated Zinc Selenide Zero Length Viewports

Specification

Seal Type

Maximum

Temperature

Bond

120 °C


Maximum Rate of Temperature

Change

Leak Rate

3° C per minute


Pressure Range

Surface Quality

Flatness <2λ


60/40 scratch/dig

Torr Scientific zinc selenide viewports with anti-reflective (AR) coatings are offered in CF, ISO and KF flange

styles. The viewports comprise an AR coated laser quality zinc selenide optic with precise flatness, parallelism,

scratch and dig specifications. The viewport optic is coated on both sides as standard and coatings are

processed to minimise reflectance at 10.6 microns. The transmission graph below shows typical before and

after transmission effect of the ‘BBAR’ and ‘VAR’ anti-reflective coatings offered as standard on Zinc Selenide

Viewports. The ultra high vacuum (UHV) CF versions are offered using high grade 304L or 316LN stainless

steel flanges. Non-magnetic viewports are offered for low energy applications or surface science applications

needing low magnetic fields. The non-magnetic viewports use a non-magnetic weld ring instead of the

regular kovar weld ring. Flanges in 304L stainless steel are used for the high vacuum KF and ISO viewports.

TSL viewports are manufactured in cleanroom conditions and helium leak tested, cleaned and packed to

UHV standards. The rugged construction of the zinc selenide viewports allows bake-out to a maximum of

120 °C with UHV performance, whilst the window offers broadband optical transmission to extreme infrared.

Options with anti-reflective coatings are also offered. Non-standard viewports can be manufactured

on request, including re-entrant style microscope/camera viewports. Annealed copper gaskets and other


AR Coated

Zinc Selenide Zero

Length Viewports

Transmission Curve - Zinc Selenide



73

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CF-1

KF-1

ISO-1

CF-2

KF-2

ISO-2

AR Coated

Zinc Selenide Zero

Length Viewports

CF-3

KF-3

ISO-3

74


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Part Number

Flange

Type

A

(mm)

B

(mm)

C

(mm)

D

(mm)

Diagram

Flange

Material

Weld Ring

Material

Coating

BVPZ16ZnSe-10600 NW16CF 34 15 1.5 12.7 CF-1 304L Kovar VAR 10.6µ

BVPZ16ZnSe-2-15 NW16CF 34 15 1.5 12.7 CF-1 304L Kovar BBAR 2-15µ

BVPZ16ZnSe-LN-10600 NW16CF 34 15 1.5 12.7 CF-1 316LN Kovar VAR 10.6µ

BVPZ16ZnSe-LN-2-15 NW16CF 34 15 1.5 12.7 CF-1 316LN Kovar BBAR 2-15µ

BVPZ16ZnSe-NM-10600 NW16CF 34 15 1.5 12.7 CF-1 316LN Non-Magnetic VAR 10.6µ

BVPZ16ZnSe-NM-2-15 NW16CF 34 15 1.5 12.7 CF-1 316LN Non-Magnetic BBAR 2-15µ

BKVPZ16ZnSe-10600 KF16 25 15 1.5 12.7 KF-1 304L Kovar VAR 10.6µ

BKVPZ16ZnSe-2-15 KF16 25 15 1.5 12.7 KF-1 304L Kovar BBAR 2-15µ

BKVPZ25ZnSe-10600 KF25 40 20 2 18.5 KF-1 304L Kovar VAR 10.6µ

BKVPZ25ZnSe-2-15 KF25 40 20 2 18.5 KF-1 304L Kovar BBAR 2-15µ

BVPZ38ZnSe-10600 NW35CF 70 32 3 12.7 CF-1 304L Kovar VAR 10.6µ

BVPZ38ZnSe-2-15 NW35CF 70 32 3 12.7 CF-1 304L Kovar BBAR 2-15µ

BVPZ38LAZnSe-10600 NW35CF 70 38 3.75 12.7 CF-2 304L Kovar VAR 10.6µ

BVPZ38LAZnSe-2-15 NW35CF 70 38 3.75 12.7 CF-2 304L Kovar BBAR 2-15µ

BVPZ38ZnSe-LN-10600 NW35CF 70 32 3 12.7 CF-1 316LN Kovar VAR 10.6µ

BVPZ38ZnSe-LN-2-15 NW35CF 70 32 3 12.7 CF-1 316LN Kovar BBAR 2-15µ

BVPZ38LAZnSe-LN-10600 NW35CF 70 38 3.75 12.7 CF-2 316LN Kovar VAR 10.6µ

BVPZ38LAZnSe-LN-2-15 NW35CF 70 38 3.75 12.7 CF-2 316LN Kovar BBAR 2-15µ

BVPZ38ZnSe-NM-10600 NW35CF 70 32 3 12.7 CF-1 316LN Non-Magnetic VAR 10.6µ

BVPZ38ZnSe-NM-2-15 NW35CF 70 32 3 12.7 CF-1 316LN Non-Magnetic BBAR 2-15µ

BKVPZ40/32ZnSe-10600 KF40 55 32 3 12.7 KF-1 304L Kovar VAR 10.6µ

BKVPZ40/32ZnSe-2-15 KF40 55 32 3 12.7 KF-1 304L Kovar BBAR 2-15µ

BKVPZ40ZnSe-10600 KF40 55 38 3.75 18.5 KF-2 304L Kovar VAR 10.6µ

BKVPZ40ZnSe-2-15 KF40 55 38 3.75 18.5 KF-2 304L Kovar BBAR 2-15µ

BKVPZ50ZnSe-10600 KF50 75 38 3.75 15 KF-3 304L Kovar VAR 10.6µ

BKVPZ50ZnSe-2-15 KF50 75 38 3.75 15 KF-3 304L Kovar BBAR 2-15µ

BVPZ64ZnSe-10600 NW63CF 114 63 5 17.4 CF-1 304L Kovar VAR 10.6µ

BVPZ64ZnSe-2-15 NW63CF 114 63 5 17.4 CF-1 304L Kovar BBAR 2-15µ

BVPZ64ZnSe-LN-10600 NW63CF 114 63 5 17.4 CF-1 316LN Kovar VAR 10.6µ

BVPZ64ZnSe-LN-2-15 NW63CF 114 63 5 17.4 CF-1 316LN Kovar BBAR 2-15µ

BVPZ64ZnSe-NM-10600 NW63CF 114 63 5 17.4 CF-1 316LN Non-Magnetic VAR 10.6µ

BVPZ64ZnSe-NM-2-15 NW63CF 114 63 5 17.4 CF-1 316LN Non-Magnetic BBAR 2-15µ

BISO63VPZZnSe-10600 ISO63 95 38 3.75 12 ISO-1 304L Kovar VAR 10.6µ

BISO63VPZZnSe-2-15 ISO63 95 38 3.75 12 ISO-1 304L Kovar BBAR 2-15µ




BISO100VPZZnSe-10600 ISO100 130 63 5 12 ISO-2 304L Kovar VAR 10.6µ

BISO100VPZZnSe-2-15 ISO100 130 63 5 12 ISO-2 304L Kovar BBAR 2-15µ




BISO160VPZZnSe-2-15 ISO160 180 89 6.5 12 ISO-3 304L Kovar BBAR 2-15µ


AR Coated

Zinc Selenide Zero

Length Viewports


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SECTION 3

Glass Components and

Glass to Metal Seals

SECTION 3

GLASS COMPONENTS AND GLASS TO METAL SEALS

CF Tubulated Kodial Viewport ....................................................................................................................78

CF Kodial Tubulation .......................................................................................................................................78

CF Kodial Tubulation with Hydroformed Bellows ................................................................................78

CF Kodial Domed Tubulation .......................................................................................................................79

CF Pyrex Tubulation ........................................................................................................................................79

CF Pyrex Tubulation with Hydroformed Bellows ..................................................................................79

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CF Tubulated Kodial Viewport

Part

Number

Flange

Type

Length

(mm)

Flange

O.D.

(mm)

Glass

O.D.

(mm)

Glass Wall

Thickness

(mm)

Flange

Material

VP13 NW16 100 34 13 1.0 304L SS

VP19 NW35 100 70 19 1.6 304L SS

VP63 NW63 150 114 64 2.0 304L SS

Glass to Metal

Seals

Part

Number

CF Kodial Tubulation

Flange

Type

Length

(mm)

Flange

O.D.

(mm)

Glass

O.D.

(mm)

Glass Wall

Thickness

(mm)

Flange

Material

T6 NW16 100 34 6 1.0 304L SS

T13 NW16 100 34 13 1.0 304L SS

T19 NW35 100 70 19 1.5 304L SS

T25 NW35 100 70 25 1.5 304L SS

T38 NW35 100 70 38 1.6 304L SS

T64 NW63 100 114 64 2.0 304L SS

CF Kodial Tubulation with Hydroformed Bellows

Part

Number

Flange

Type

Length

(mm)

Flange

O.D.

(mm)

Glass

O.D.

(mm)

Glass Wall

Thickness

(mm)

Flange

Material

TB6 NW16 170 34 6 1.0 304L SS

TB13 NW16 170 34 13 1.0 304L SS

TB19 NW35 190 70 19 1.5 304L SS

TB25 NW35 200 70 25 1.5 304L SS

TB38 NW35 200 70 38 1.6 304L SS

TB64 NW63 260 114 64 2.0 304L SS

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CF Kodial Domed Tubulation

Part

Number

Flange

Type

Length

(mm)

Flange

O.D.

(mm)

Glass

O.D.

(mm)

Glass Wall

Thickness

(mm)

Flange

Material

T13DT NW16 100 34 13 1.0 304L SS

T38DT NW35 100 70 38 1.6 304L SS

T64DT NW63 150 114 64 2.0 304L SS

Part

Number

Flange

Type

Length

(mm)

Flange

O.D.

(mm)

Glass

O.D.

(mm)

Glass Wall

Thickness

(mm)

CF Pyrex Tubulation

Flange

Material

T6P NW16 100 34 6 1.0 304L SS

T13P NW16 100 34 13 1.0 304L SS

T19P NW35 100 70 19 1.5 304L SS

T25P NW35 100 70 25 1.5 304L SS

T38P NW35 100 70 38 1.6 304L SS

T63P NW63 100 114 64 2.0 304L SS

Glass to Metal

Seals

CF Pyrex Tubulation with Hydroformed Bellows

Part

Number

Flange

Type

Length

(mm)

Flange

O.D.

(mm)

Glass

O.D.

(mm)

Glass Wall

Thickness

(mm)

Flange

Material

T6PB NW16 170 34 6 1.0 304L SS

T13PB NW16 170 34 13 1.0 304L SS

T19PB NW35 190 70 19 1.5 304L SS

T25PB NW35 200 70 25 1.5 304L SS

T38PB NW35 200 70 38 1.6 304L SS

T63PB NW63 260 114 64 2.0 304L SS


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SECTION 4

Chambers,Viewport Accessories

and Construction Hardware

SECTION 4

CHAMBERS, VIEWPORT ACCESSORIES AND CONSTRUCTION HARDWARE

KF and ISO Centering Rings..........................................................................................................................82

CF Copper Gaskets............................................................................................................................................84

Blank Flanges......................................................................................................................................................85

Clamps and Fasteners......................................................................................................................................86

Atom Trap Chambers.......................................................................................................................................88

Viewport Shutters .............................................................................................................................................90

81

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KF and ISO Centering Rings

Specification

O-Ring Options

Nitrile or Viton

Materials

Maximum

Temperature

Aliminium or Stainless Steel

Nitrile 150 °C, Viton 200 °C

KF and ISO

Centering Rings

Torr Scientific supplies a range of centering rings used to seal both KF and ISO high vacuum flanges.

Both the O-ring and the center ring is provided. Nitrile or Viton O-rings and aluminium or stainless

steel inner rings are offered as standard. The centering rings are supplied cleaned and packed for

vacuum applications. The ISO centering rings are also offered with an aluminium trapped outer ring.

Centering rings in other sizes and materials plus mesh centering rings can be quoted on request.

KF Centering Rings

Part Number Size Inner Material O-Ring

TSKF016000ANC KF16 Aluminium Nitrile

TSKF016000AVC KF16 Aluminium Viton

TSKF016000SNC KF16 Stainless Steel Nitrile

TSKF016000SVC KF16 Stainless Steel Viton













ISO Centering Rings

Part Number Size Inner Material O-Ring Trapped Outer

TSIS063000ANC ISO63 Aluminium Nitrile None

TSIS063000ANT ISO63 Aluminium Nitrile Aluminium

TSIS063000AVC ISO63 Aluminium Viton None

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KF and ISO Centering Rings

Part Number Size Inner Material O-Ring Trapped Outer

TSIS063000AVT ISO63 Aluminium Viton Aluminium

TSIS063000SNC ISO63 Stainless Steel Nitrile None

TSIS063000SNT ISO63 Stainless Steel Nitrile Aluminium

TSIS063000SVC ISO63 Stainless Steel Viton None

TSIS063000SVT ISO63 Stainless Steel Viton Aluminium









































KF and ISO

Centering Rings


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CF Copper Gaskets

Specification

Material

OFHC Copper

Thickness

2 mm

Options

Annealed, Silver Plated

CF Copper Gaskets

Copper gaskets are used to make a leak tight UHV seal between two CF flanges. Torr Scientific offers

OFHC (oxygen free high conductivity) copper which is suitably clean for UHV conditions and has

a wide temperature range and a low outgassing rate. The gaskets are cleaned and packed to UHV

standards. Annealed copper gaskets are also offered and should always be used on components

such as viewports and glass to metal seals. Special gaskets, viton gaskets and silver plated gaskets

can be supplied on request.

Part Number To Fit Flange Annealed? ID

(mm)

Thickness

(mm)

TSCF016016CUG NW16CF (34 mm OD) No 16 2 10

TSCF016016CUA NW16CF (34 mm OD) Yes 16 2 10

TSCF035037CUG NW35CF (70 mm OD) No 36.5 2 10

TSCF035037CUA NW35CF (70 mm OD) Yes 36.5 2 10






TSCF150153CUA NW150CF(203 mm OD) Yes 152.5 2 10

Pack QTY

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KF Blank Flanges

Blank Flanges

KF Blank flanges are offered in 316L stainless steel and aluminium. These high vacuum flanges can

be used in vacuum applications down to 10 -7 mbar and can be baked to 200°C (sustained 150°C). KF

flanges are clamped using an aluminium swing clamp which applies uniform pressure on the 15 degree

angled surface of the flange. The seal surface of the flange compresses the O-ring of an inner centering

ring. The clamps and centering rings are also available from Torr Scientific. Other KF hardware parts

can be supplied on request.

ISO Blank Claw Clamp Flanges

CF Blank Flanges

Part Number Size Outside Diameter

(mm)

Thickness

(mm)

Material

TSKF016000ABK KF16 30 6 Aluminium

TSKF016000SBK KF16 30 6 304L SS


TSKF025000SBK KF25 40 6 304L SS


TSKF040000SBK KF40 55 6 304L SS


TSKF050000SBK KF50 75 6 304L SS

ISO Blank flanges are offered in 316L stainless steel. These high vacuum flanges can be used in vacuum

applications down to 10 -8 mbar and can be baked to 200 °C (sustained 150°C). The ISO claw clamp

flanges are clamped using steel or aluminium double claw clamps. The seal surface of the flange

compresses the O-ring of an inner centering ring. The clamps and centering rings are also available

from Torr Scientific. Rotatable outers, fixed bolted flanges and other ISO hardware can be supplied on

request.


(mm)

Thickness

(mm)

Material

TSIS063000SBK ISO63 95 12 304L SS

TSIS080000SBK ISO80 110 12 304L SS

TSIS100000SBK ISO100 130 12 304L SS

TSIS160000SBK ISO160 180 12 304L SS

TSIS200000SBK ISO200 240 12 304L SS

TSIS250000SBK ISO250 290 12 304L SS

Blank Flanges

CF Blank flanges are offered in 304L stainless steel and 316LN stainless steel for low energy applications

or surface science applications needing low magnetic fields. These ultra high vacuum flanges can

be used in vacuum applications down to 10 -12 mbar and can be baked to 450 °C. The CF flanges are

clamped using nuts, bolts and washers, and the knife-edge of the flange cuts in to the copper gasket

seal. Uniform bolting and the use of annealed copper gaskets is essential when bolting viewports and

glass to metal seals. The nuts, bolts, washers and copper gaskets are also available from Torr Scientific.


(mm)

Thickness

(mm)

Material

TSCF016000SBK NW16CF 34 7.6 304L SS

TSCF016000LBK NW16CF 34 7.6 316LN SS

TSCF035000SBK NW35CF 70 12.7 304L SS


TSCF063000SBK NW63CF 114 17.4 304L SS


TSCF100000SBK NW100CF 152 19.9 304L SS


TSCF150000SBK NW150CF 203 22.3 304L SS



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Clamps and Fasteners

KF Swing Clamps

KF aluminium swing clamps have a single wingnut fastener and are used

to clamp KF flanges by applying uniform pressure on the 15 degree angled

surface of the flange. The seal surface of the flange compresses the O-ring

of an inner centering ring. The flanges and centering rings are also available

from Torr Scientific. Other KF hardware parts can be supplied on request.

Clamps and Fasteners

ISO Double Claw Clamps

Part Number Size Material Thick

(mm)

TSKF016000ASC KF16 Aluminium 12




ISO double claw clamps are offered in steel or aluminium and are used to

clamp ISO claw clamp flanges. The surfaces of the flanges compress the

O-ring of an inner centering ring. The flanges and centering rings are also

available from Torr Scientific and other ISO hardware can be supplied on

request.

Part Number Size Thread

Size

Length

(mm)

No. Required

Per Flange

Material

TSIS063250DCS ISO63/250 M10 60 4 Mild Steel

TSIS063100DCA ISO63/100 M10 50 4 Aluminium

TSIS160250DCA ISO160/250 M10 52 4 Aluminium

CF Nuts, Bolts and Washers

Nuts, bolts and washers are offered in A2 stainless steel in various metric

sizes and bolt lengths for assembly of CF flanges. Uniform bolting and the

use of annealed copper gaskets is essential when bolting viewports and

glass to metal seals. The flanges and copper gaskets are also available from

Torr Scientific and other CF hardware can be supplied on request.

Part Number Thread Size Length

(mm)

TSCF004020NBW M4 20 25

TSCF004035NBW M4 35 25

TSCF006035NBW M6 35 25

TSCF006050NBW M6 50 25

TSCF008045NBW M8 45 50

TSCF008050NBW M8 50 50

TSCF008060NBW M8 60 50

TSCF008070NBW M8 70 50

Pack QTY

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Atom Trap Chambers

Specification

Body Material

Maximum

Temperature

316LN (316L / 304L options)

200 °C

Flange Material 316LN (option 304L)

Number of Horizontal

Ports

Leak Rate

Up to 14


Pressure Range


Surface Quality

Optic Material

20/10 scratch/dig

Fused Silica with Broadband Coating

option

Atom Trap

Chambers

Flatness

Torr Scientific’s new range of compact, low-magnetic, chamber modules are used in the

research of ultra-cold atoms. New technology, especially semiconductor laser development, has

revolutionised atomic physics over the past two decades and scientists are now able to routinely

cool certain gases to ultra-low temperatures, very close to absolute zero (~50 nanokelvin). At such

low temperatures, it’s possible to trap atoms with light, magnetic and / or electric fields and study

their behaviour in detail.

< 8λ

The new range of Atom Trap Chambers are

manufactured from 316LN stainless steel with

316LN flanges, and contain up to 14 horizontal

and two vertical ports, six of which are used to

house three pairs of counter-propagating laser

beams that perform the ‘trapping’. High

quality fused silica optics that offer a high

threshold to laser damage (complete with

non-magnetic weld rings) are welded directly

to the chamber body to reduce the overall

chamber size, with an option for custom

anti-reflective coatings that are optimised to

the wavelengths of the lasers being used.

316LN SS low-magnetic body as

standard with 316L / 304L options

A typical Atom Trap Chamber arrangement with 3

pairs of counter-propagating lasers to ‘trap’ the atoms

Two vertical 63.5mm diameter fused silica windows

are fitted as standard with an option for broadband

coating. The greater optical access allows the

exploration of different types of optical latices and

the compactness of the chamber makes it possible

to generate the magnetic gradients needed by

using small coils / currents that do not require active

dissipation.

Image courtesy of The Weizmann Institute

For details on Torr Scientific’s range of Anti-Reflective viewports, see page 54

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Atom Trap Chambers

Standard Chamber Design

ATC-8P

ATC-10P

ATC-12P

Atom Trap

Chambers

Part

Number

Horizontal Ports

Port Length

DN16 (A)

Port Length

DN35 (B)

Vertical Port Optics

ATC-8PC 6 x DN16, 2 x DN35 112 mm 81 mm 2 x DN64 Fused Silica YES



ATC-8PU 6 x DN16, 2 x DN35 112 mm 81 mm 2 x DN64 Fused Silica NO



Broadband

Coating

Bespoke designs available upon request


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Viewport Shutters

Features

Manual or pneumatic actuation

Position switch option

Fully bakeable to 250 °C

Friction control system

Viewport Shutters

Torr Scientific offers a range of viewport shutters to protect system windows during process, such

as vacuum deposition. Utilisting the magnetically-coupled MagiDrive rotary feedthroughs for the

shutter actuation, the range can be actuated manually or pneumatically, where remote control is

required. The MagiDrive’s low stray magnetic field ensures compatibility with RHEED measurements.

The range also includes the unique ‘AutoClose’ window. Viewport shutters are available on

four flange sizes from CF38 to CF150. Pneumatic actuated shutters and 100% coverage options can


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Viewport Shutters

Manual Actuation

Manually actuated viewport shutters are fitted with an external friction control system, ensuring

the blade remains in the desired position without the need for position locks.

Part Number Flange Size Dimension (mm)

A B C E

VPS38 CF38 (70 mm) 37.0 32.8 10.0 116.0

VPS64 CF64 (114 mm) 63.5 57.0 19.5 135.0

VPS100 CF100 (152 mm) 101.6 87.0 35.5 158.0

VPS150 CF150 (204 mm) 152.4 133.2 52.5 173.0

Manual ‘AutoClose’ shutters

The unique ‘AutoClose’ shutter safeguards viewport windows from accidental deposition. It

allows end-users to manually open the shutter for viewing, but upon release automatically closes,

protecting the window from accidental coating. ‘AutoClose’ motion is driven by an inherent

position bias with intrinsic deceleration. The ‘AutoClose’ prevents the costly and time-consuming

requirement to break vacuum in order to replace/clean windows accidentally coated. This is

particularly undesirable for UHV systems. ‘AutoClose’ shutters can be mounted in any orientation

and are bakeable to 250 °C

Viewport Shutters

Part Number Flange Size Dimension (mm)

A B C E

VPS38AC CF38 (70 mm) 37.0 32.8 10.0 116.0

VPS64AC CF64 (114 mm) 63.5 57.0 19.5 135.0

VPS100AC CF100 (152 mm) 101.6 87.0 35.5 158.0

VPS150AC CF150 (204 mm) 152.4 133.2 52.5 173.0


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SECTION 5

Optics

SECTION 5

OPTICS

Optics.....................................................................................................................................................................95

Attenuation Filter Wheels ..............................................................................................................................98

93

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Optics

Torr Scientific has incorporated optical quality windows in

to a wide range of viewports in response to growing demand

for scientists carrying out laser experimentation

within UHV systems. The company is also able to supply

polished optics in a variety of forms and materials. Standard

viewport windows can be offered as well as optics to

custom specification. Precise surface qualities and optical

specifications can be quoted.

Torr Scientific invested in a new Perkin Elmer UV/Vis/IR

Spectrophotometer in January 2011. The spectrophotometer

extends the range at which the company is able to

measure both reflectance and transmission to between

190nm and 3.2 microns. The instrument will be used as an

inspection tool for incoming optics and for manufactured

UHV viewports with anti-reflective coatings optimised for

particular customer applications. The spectrophotometer

brings greater quality control to the business and will extend

TSL’s coating capability.

Optics

The e-beam vacuum coating system is used predominantly

to process anti-reflective coatings. TSL upgraded the electronic

control units on the e-beam system in 2009 in partnership

with Ferrotec, specialists in electron beam evaporator

equipment. The upgrade has improved efficiency and

reliability of the anti-reflecting coating process. Viewports

are coated to customer specified wavelengths of application.

Below are examples of reflectance curves for a BBAR

broadband coating to cater for a wavelength range and for

a VAR coating optimised for a single wavelength typically

used for single laser applications.


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Optics

Fused Silica

Fused Silica is a high purity synthetic

silicon dioxide. This noncrystalline,

colourless, silica glass has excellent

optical qualities and broadband optical

transmission through deep UV,

visible to near infra-red. Various antireflective

coatings to match customer

reflectance requirements are processed

at TSL and can be offered on

request.

Quartz Natural Z-Cut

Optics

The mineral quartz, which is a form

of crystalline silicon dioxide is birefringent

and the Z-axis is the optic

axis. This Z-cut quartz is commonly

used in optical applications. The material

offers extended broadband optical

transmission through deep UV,

visible to near infra-red.

Sapphire

Sapphire optics offer broadband optical

transmission through UV, visible

to near infra-red. The single crystal

sapphire optics have excellent optical,

physical and chemical properties.

The hardest of the oxide crystals, sapphire

retains its high strength at high

temperatures. Various anti-reflective

coatings to match customer reflectance

requirements are processed at

TSL and can be offered on request.

Magnesium Fluoride

Magnesium Fluoride transmits well

into the VUV region and is used

mostly for UV optics and is excellent

for Excimer laser applications. Magnesium

Fluoride is a tough material

and is slightly birefringent. Special

AR coated optics can be offered on

request.

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Optics

Calcium Fluoride

Calcium Fluoride has widespread

IR applications and is also useful in

the UV and as UV Excimer laser windows.

Degradation due to moisture

in the atmosphere is minimal and

polished surfaces may be expected

to withstand several years exposure

to normal atmospheric conditions.

Low solubility and wide transmission

makes this material useful for many

applications. Special AR coated optics

can be offered on request.

Barium Fluoride

Barium Fluoride is used for applications

in the IR and is often used as a

viewport window for thermography.

Barium Fluoride cleaves easily and is

susceptible to thermal shock.

Optics

Zinc Selenide

Zinc Selenide optics are used widely

as IR windows. Zinc Selenide is one

of the materials of choice for CO 2 laser

optics operating at 10.6 μm. Optics

with anti-reflective coatings can

also be offered on request.

CVD processes have been developed

to the point where economical artificial

diamond substrates are now

readily available. The CVD diamond

performance is close to that of natural

diamond, so customers can now

take advantage of thermal conductivity

that is five times that of copper

and high transparency for optical

wavelengths that range from 225

nanometers to beyond 100 microns.

CVD Diamond


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Attenuation Filter Wheels

Specification

Material:

Optical Density

Linearity:

Laser quailty quartz/ Spectrosil

Transmission >80% for

250nm to 2500nm

+/- 6% (with angle)

Coated Sector: 300°

Parallelism:

Surface Quality:

Coating:

Dimension

Tolerance:

+/- 20 arc sec

20-10 scratch/dig

PVD metallic alloy optimised for

spectral neutrality

< +/- 0.2mm

Attenuation

Filter Wheels

Torr Scientific manufactures Attenuation Filter Wheels in a range of sizes from 50 mm to 120 mm

diameter and with differing optical densities 0-1, 0-2 and 0-3. These filters are useful as beam splitters

and for applications requiring variable light attenuation in a continuous analogue mode, such

as in spectrophotometers and laser measuring systems. Laser quality fused silica is used for UV/VIS/

NIR applications and for its thermal stability. All filter wheels are manufactured to tight tolerances

especially parallelism to minimise beam movement with rotation. Specially designed items can also

be accommodated on request. Each filter wheel is supplied with a test certificate - typical data for a

non-standard density of 2.25 stays well within the specified linearity tolerance of +/- 6%.



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Attenuation Filter Wheels

2.50

100.00%

Neutral Density Filter Test

Optical Density Number

2.00

1.50

1.00

0.50

Transmission (%)

10.00%

1.00%

0.00

0

50 100 150 200 250 300 350

Angle (degrees)

0.10%

0

50 100 150 200 250

Angle (degrees)

300 350

Attenuation

Filter Wheels

Part Number ØA (mm) ØB (mm) t (mm) α

LFW50 50 15 4 55°

LFW75 75 15 4 55°

LFW100 100 15 4 55°

LFW120 120 15 4 55°


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100


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SECTION 6

CVD Diamond

SECTION 6

CVD DIAMOND

CVD Diamond..................................................................................................................................................102

101

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CVD Diamond

Specification

Tolerance of Thickness: ±25 µm

Flatness:

Thermal Conductivity:

<4 µm/cm

Density: 3.5 g/cm 3

Young’s Modulus:

Growth Side

Surface Finish:

Nucleation Side

Surface Finish:

Polished:

Raw Thickness:

Polished Thickness:

Up to 1800 W/mK

(1000 - 1500 W/mK typical)

1.22 Gpa

<100 nm Ra

<30 nm Ra

Standard Sizes

Up to diameter 65 mm

Between 0.3 mm and 1.5 mm

Between 0.2 mm and 1.0 mm

Special sizes and thickness are available on request

CVD Diamond

Natural diamond has always been of extreme scientific interest due to its unmatched properties including

hardness, thermal conductivity, broadband transparency, chemical inertness and high temperature

stability. However, the cost of natural diamond substrates is prohibitive in most cases. In the

last two decades CVD processes have been developed to the point where economical artificial diamond

substrates are now readily available. Torr Scientific is offering CVD diamond substrates in various

shapes for use in applications such as thermal mounts and laser windows as well as sealed into vacuum

viewports assemblies for high vacuum applications.

Transmission Curve - CVD Diamond

HEBEI DIAMOND CURVES

90.0%

80.0%

OPTICAL & X-RAY GRADES

70.0%

OPTICAL GRADE

TRANSMISSION %

60.0%

50.0%

40.0%

X-RAY GRADE

30.0%

20.0%

10.0%

0.0%

200

300

400

500

600

700

800

900

1000

1100

1200

1300

1400

Wavelength (nm)

1500

1600

1700

1800

1900

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

Wavelength (microns)

20

21

22

23

24

25


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CVD Diamond

The CVD diamond performance is very close to that of natural

diamond, so our customers can now take advantage

of thermal conductivity that is five times that of copper in

contrast to metals, where heat is conducted by electrons,

lattice vibrations are responsible for the high thermal conductivity

of diamond. Nowadays CVD diamond made by the

laboratory is used as mounts for high-power integrated circuits

and laser diodes. CVD diamond also has high transparency

for optical wavelengths that range from 225 nanometers

to beyond 100 microns. The broadband optical transparency,

high thermal conductivity and hardness make diamond an

ideal choice for highly demanding window applications such

as high-power IR laser windows, high-power microwave windows

and durable windows for aggressive environments.

The CVD diamond has the following benefits:

· Exceptional broadband infrared transparency

· Transparency in the optical and ultraviolet spectrum

· Excellent thermal conductivity

· Low scatter in infrared

· High fracture strength

· Low thermal expansion coefficient

Please see the viewports section for UHV flange mounted

options. Please contact TSL to request quotations for your specific

applications.

CVD Diamond


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103

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SECTION 7

Ceramic Products and

Feedthroughs

SECTION 7

CERAMIC PRODUCTS AND FEEDTHROUGHS

Ceramic Breaks................................................................................................................................................106

BNC and SHV Feedthroughs......................................................................................................................107

105

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Ceramic Breaks

Specification

Seal Type

Braze

Temperature

minus 200 °C to 450 °C

(150 °C for KF)

Leak Rate


Pressure Range


Ceramic

High Grade Alumina

Ceramic Breaks

Torr Scientific is now manufacturing ceramic to metal seals. High grade alumina is vacuum brazed at TSL

to kovar weld ends which are in turn TIG welded to CF, KF or ISO flanges. The products are manufactured,

cleaned and helium leak tested to UHV standards. A range of feedthroughs is also under development.

TSL is also pleased to quote for customer designed ceramic to metal seals and for non-standard requirements.

Part Number Flange Type Flange OD

(mm)

Length

(mm)

ID

(mm)

Electrical

Rating

Flange

Material

Weld

Ends

TSCF038020SCB NW35CF 70 170 20 35kV 304L Kovar

TSCF038020LCB NW35CF 70 170 20 35kV 316LN Kovar

TSKF040020SCB KF40 55 170 20 35kV 304L Kovar

TSCF038034SCB NW35CF 70 100 34 35kV 304L Kovar

TSCF038034LCB NW35CF 70 100 34 35kV 316LN Kovar

TSKF040034SCB KF40 55 100 34 35kV 304L Kovar

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BNC and SHV Feedthroughs

A range of feedthroughs including BNC and SHV feedthroughs is supplied by TSL. The feedthroughs

are UHV compatible and supplied with atmosphere side connectors. The SHV (safety high voltage)

connectors include recessed female contacts to prevent cross mating with BNC components. TSL is

also pleased to quote for customer designed feedthroughs for non-standard requirements.

BNC Feedthroughs

Specification

Voltage

Current

Temperature

Leak Rate

Pressure Range

500 V DC

3 A

minus 200 °C to 450 °C

(150 °C for KF)


<1x10 -11 Torr

Part Number

Flange

Type

Flange OD

(mm)

Length Without

Connector (mm)

Length With

Connector (mm)

No of FTs

per flange

Pin Dia

(mm)

Material

TSCF016001BNC NW16CF 34 35 52 1 2.4 304 SS & Alumina




TSKF016001BNC KF16 30 35 52 1 2.4 304 SS & Alumina



TSKF040002BNC KF40 55 35 52 2 2,4 304 SS & Alumina

SHV-5 Feedthroughs

BNC and SHV

Feedthroughs

Specification

Voltage

Current

Temperature

Leak Rate

Pressure Range

5000V DC

5A

minus 200°C to 450°C

(150°C for KF)


<1x10 -11 Torr

Part Number

Flange

Type

Flange

OD (mm)

Length Without

Connector (mm)

Length With

Connector (mm)

No of FTs

per flange

Pin Dia

(mm)

Material

TSCF016001SHV NW16CF 34 42 71 1 2.4 304 SS & Alumina




TSKF016001SHV KF16 30 42 71 1 2.4 304 SS & Alumina





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108

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SECTION 8

Phosphor Screens

SECTION 8

PHOSPHOR SCREENS

UHV CF RHEED Screens...............................................................................................................................110

109

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UHV CF RHEED Screens

CF Viewport

CF Viewport

Seal Type

Weld Ring

Specification

Induction

Kovar

Phosphor Layer

Phosphor Layer

Glass Coated With ITO

Viewport coated with ITO

Standard Phosphor

Coating

Maximum

Temperature

P22 yellow/green

Indium Tin Oxide (ITO)

conducting underlayer on


350 °C


Maximum Rate of

Temperature Change

3 °C per minute

Leak Rate

Pressure Range


1 bar to 10 -11 mbar

UHV CF RHEED

Screens

Torr Scientific produces a range of RHEED screens which are processed using kodial glass zero

length viewports with kovar weld rings and options of 304L or 316LN CF flanges. P22 yellow green

phosphor is supplied as standard and other phosphors including P11, P43 and P46 can be supplied

on request. Options with additional 6mm thick lead glass discs for X-Ray protection are also

offered. Screens can be prepared to customer design including phosphor layers directly on to lead

glass windows. RHEED, Reflection High Energy Electron Diffraction, is a typical application used as

a structural probe during material growth and deposition in Molecular Beam Epitaxy. Torr Scientific

also refurbishes LEED screens and processes custom specific phosphor screens on various substrates,

typically glass and lead glass.

CF-1

CF-2

CF-3

CF-4

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UHV CF RHEED Screens

Part Number

Flange

Type

A

(mm)

B

(mm)

C

(mm)

D

Diagram

Flange

Material

VPZ16ITOP22 NW16CF 34 15 1 12.7 CF-1 304L

VPZ16ITOP22LG NW16CF 34 15 1 12.7 CF-3 304L Yes

VPZ16ITOP22-LN NW16CF 34 15 1 12.7 CF-1 316LN

VPZ16ITOP22LG-LN NW16CF 34 15 1 12.7 CF-3 316LN Yes

VPZ38ITOP22 NW35CF 70 32 2.5 12.7 CF-1 304L

VPZ38ITOP22LG NW35CF 70 32 2.5 12.7 CF-3 304L Yes

VPZ38ITOP22-LN NW35CF 70 32 2.5 12.7 CF-1 316LN

VPZ38ITOP22LG-LN NW35CF 70 32 2.5 12.7 CF-3 316LN Yes

VPZ64ITOP22 NW63CF 114 63 3 17.4 CF-1 304L




VPZ100ITOP22 NW100CF 152 89 4 19.9 CF-2 304L




VPZ150ITOP22 NW150CF 203 136 6.5 22.3 CF-2 304L

VPZ150ITOP22LG NW150CF 203 136 6.5 22.3 CF-4 304L Yes

VPZ150ITOP22-LN NW150CF 203 136 6.5 22.3 CF-2 3016LN

VPZ150ITOP22LG-LN NW150CF 203 136 6.5 22.3 CF-4 316LN Yes

X-ray protection

lead glass

(6mm thick)

For alternative phosphor types please replace ‘P22’ in the part code with P11, P43 or P46.

Phosphor

Type

Chemical

Composition

Typical Peak

Wavelength

Fluorescent

Colour

Chromaticity

Coordinates

(X,Y)

Decay

Time

P11 ZnS:Ag 460 nm Blue 0.139, 0.148 34μs

P22 ZnS:Cu, Al -

Yellowishgreen

P43 Gd2O2S:Tb3+ 545 nm Green 0.344, 0.568 1ms

Information

Good energy conversion

(efficiency) for blue light

0.281, 0.621 1-100ms Used in colour televisions

Excellent scintillator for

x-rays < 250nm

UHV CF RHEED

Screens

P46 Y3Al5O12:Ce3+ 530nm Yellow-green 0.294, 0.532 300ns Flying-spot equipment


111

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Copyright ©

Index

Part Number

ATC-10PC 89

ATC-10PU 89

ATC-12PC 89

ATC-12PU 89

ATC-8PC 89

ATC-8PU 89

BISO100QVPZ 17

BISO100VPZBaF2 43

BISO100VPZCaF2 41

BISO100VPZMgF2 39

BISO100VPZNQZ 47

BISO100VPZZnSe 37

BISO100VPZZnSe-10600 75

BISO100VPZZnSe-2-15 75

BISO160QVPZ 17

BISO160VPZMgF2 39

BISO160VPZNQZ 47

BISO160VPZZnSe 37


BISO63QVPZ 17

BISO63VPZBaF2 43

BISO63VPZCaF2 41

BISO63VPZMgF2 39

BISO63VPZNQZ 47

BISO63VPZZnSe 37

BISO63VPZZnSe-10600 75


BKVPZ16BaF2 43

BKVPZ16CaF2 41

BKVPZ16MgF2 39

BKVPZ16NQZ 47

BKVPZ16Q 17

BKVPZ16ZnSe 37

BKVPZ16ZnSe-10600 75

BKVPZ16ZnSe-2-15 75

BKVPZ25BaF2 43

BKVPZ25CaF2 41

BKVPZ25MgF2 39

BKVPZ25NQZ 47

BKVPZ25Q 17

BKVPZ25ZnSe 37


BKVPZ25ZnSe-2-15 75

BKVPZ40/32BaF2 43

BKVPZ40/32CaF2 41

BKVPZ40/32MgF2 39

BKVPZ40/32NQZ 47

BKVPZ40/32Q 17

BKVPZ40/32ZnSe 37

Page

Number

Part Number

BKVPZ40/32ZnSe-10600 75

BKVPZ40/32ZnSe-2-15 75

BKVPZ40BaF2 43

BKVPZ40CaF2 41

BKVPZ40MgF2 39

BKVPZ40NQZ 47

BKVPZ40Q 17

BKVPZ40ZnSe 37


BKVPZ40ZnSe-2-15 75

BKVPZ50BaF2 43

BKVPZ50CaF2 41

BKVPZ50MgF2 39

BKVPZ50NQZ 47

BKVPZ50Q 17

BKVPZ50ZnSe 37


BKVPZ50ZnSe-2-15 75

BVPZ100BaF2 43

BVPZ100BaF2-NM 43

BVPZ100CaF2 41

BVPZ100CaF2-NM 41

BVPZ100MgF2 39

BVPZ100MgF2-NM 39

BVPZ100-NM 29

BVPZ100NQZ 47

BVPZ100NQZ-NM 47

BVPZ100Q 17

BVPZ100Q-LN 17

BVPZ100Q-NM 17

BVPZ100ZnSe 37

BVPZ100ZnSe-2-15 75

BVPZ100ZnSe-LN 37

BVPZ100ZnSe-LN-2-15 75

BVPZ100ZnSe-NM 37

BVPZ100ZnSe-NM-2-15 75

BVPZ150MgF2 39

BVPZ150MgF2-NM 39

BVPZ150-NM 29

BVPZ150Q 17

BVPZ150Q-LN 17

BVPZ150Q-NM 17

BVPZ150ZnSe 37

BVPZ150ZnSe-2-15 75

BVPZ150ZnSe-LN 37


BVPZ150ZnSe-NM 37


BVPZ16BaF2 43

Page

Number

Part Number

BVPZ16BaF2-NM 43

BVPZ16CaF2 41

BVPZ16CaF2-NM 41

BVPZ16MgF2 39

BVPZ16MgF2-NM 39

BVPZ16-NM 29

BVPZ16NQZ 47

BVPZ16NQZ-NM 47

BVPZ16Q 17

BVPZ16Q-LN 17

BVPZ16Q-NM 17

BVPZ16ZnSe 37

BVPZ16ZnSe-10600 75

BVPZ16ZnSe-2-15 75

BVPZ16ZnSe-LN 37

BVPZ16ZnSe-LN-10600 75


BVPZ16ZnSe-NM 37

BVPZ16ZnSe-NM-10600 75


BVPZ200MgF2 39

BVPZ200Q 17

BVPZ200ZnSe 37

BVPZ200ZnSe-2-15 75

BVPZ38BaF2 43

BVPZ38BaF2-NM 43

BVPZ38CaF2 41

BVPZ38CaF2-NM 41

BVPZ38LABaF2 43

BVPZ38LACaF2 41

BVPZ38LAMgF2 39

BVPZ38LANQZ 47

BVPZ38LAQ 17

BVPZ38LAZnSe 37

BVPZ38LAZnSe-10600 75

BVPZ38LAZnSe-2-15 75

BVPZ38LAZnSe-LN 37

BVPZ38LAZnSe-LN-10600 75

BVPZ38LAZnSe-LN-2-15 75

BVPZ38MgF2 39

BVPZ38MgF2-NM 39

BVPZ38-NM 29

BVPZ38NQZ 47

BVPZ38NQZ-NM 47

BVPZ38Q 17

BVPZ38QLA-LN 17

BVPZ38Q-LN 17

BVPZ38Q-NM 17

BVPZ38ZnSe 37

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Number

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Index

Part Number

BVPZ38ZnSe-10600 75

BVPZ38ZnSe-2-15 75

BVPZ38ZnSe-LN 37



BVPZ38ZnSe-NM 37



BVPZ64BaF2 43

BVPZ64BaF2-NM 43

BVPZ64CaF2 41

BVPZ64CaF2-NM 41

BVPZ64MgF2 39

BVPZ64MgF2-NM 39

BVPZ64-NM 29

BVPZ64NQZ 47

BVPZ64NQZ-NM 47

BVPZ64Q 17

BVPZ64Q-LN 17

BVPZ64Q-NM 17

BVPZ64ZnSe 37

BVPZ64ZnSe-10600 75

BVPZ64ZnSe-2-15 75

BVPZ64ZnSe-LN 37



BVPZ64ZnSe-NM 37



ISO100QVPZ 15

ISO100QVPZAR 53

ISO100QVPZBBAR 55

ISO100QVPZVAR 51

ISO100QVPZWAR 57

ISO100SVPZ 35

ISO100SVPZ-200 33

ISO100SVPZ-200-AR 67

ISO100SVPZ-200-BBAR 69

ISO100SVPZ-200-VAR 71

ISO100VPZ 21

ISO100VPZAR 59

ISO100VPZBBAR 61

ISO100VPZITO 23

ISO100VPZVAR 63

ISO100VPZWAR 65

ISO160QVPZ 15

ISO160QVPZAR 53

ISO160QVPZBBAR 55

ISO160QVPZVAR 51

Page

Number

Part Number

ISO160QVPZWAR 57

ISO160SVPZ 35

ISO160SVPZ-200 33

ISO160SVPZ-200-AR 67



ISO160VPZ 21

ISO160VPZAR 59

ISO160VPZBBAR 61

ISO160VPZITO 23

ISO160VPZVAR 63

ISO160VPZWAR 65

ISO63/32VPZITO 23

ISO63QVPZ 15

ISO63QVPZAR 53

ISO63QVPZBBAR 55

ISO63QVPZVAR 51

ISO63QVPZWAR 57

ISO63SVPZ 35

ISO63SVPZ-200 33

ISO63SVPZ-200-AR 67



ISO63VPZ 21

ISO63VPZAR 59

ISO63VPZBBAR 61

ISO63VPZVAR 63

ISO63VPZWAR 65

KVPZ16 21

KVPZ16AR 59

KVPZ16BBAR 61

KVPZ16ITO 23

KVPZ16Q 15

KVPZ16QAR 53

KVPZ16QBBAR 55

KVPZ16QVAR 51

KVPZ16QWAR 57

KVPZ16S 35

KVPZ16S-200 33

KVPZ16S-200-AR 67

KVPZ16S-200-BBAR 69

KVPZ16S-200-VAR 71

KVPZ16VAR 63

KVPZ16WAR 65

KVPZ25 21

KVPZ25AR 59

KVPZ25BBAR 61

KVPZ25ITO 23

KVPZ25Q 15

Page

Number

Part Number

KVPZ25QAR 53

KVPZ25QBBAR 55

KVPZ25QVAR 51

KVPZ25QWAR 57

KVPZ25S 35

KVPZ25S-200 33

KVPZ25S-200-AR 67

KVPZ25S-200-BBAR 69

KVPZ25S-200-VAR 71

KVPZ25VAR 63

KVPZ25WAR 65

KVPZ40/32AR 59

KVPZ40/32BBAR 61

KVPZ40/32ITO 23

KVPZ40/32Q 15

KVPZ40/32QAR 53

KVPZ40/32QBBAR 55

KVPZ40/32QVAR 51

KVPZ40/32QWAR 57

KVPZ40/32S 35

KVPZ40/32S-200 33

KVPZ40/32S-200-AR 67

KVPZ40/32S-200-BBAR 69

KVPZ40/32S-200-VAR 71

KVPZ40/32VAR 63

KVPZ40/32WAR 65

KVPZ40AR 59

KVPZ40BBAR 61

KVPZ40LA 21

KVPZ40Q 15

KVPZ40QAR 53

KVPZ40QBBAR 55

KVPZ40QVAR 51

KVPZ40QWAR 57

KVPZ40S 35

KVPZ40S-200 33

KVPZ40S-200-AR 67

KVPZ40S-200-BBAR 69

KVPZ40S-200-VAR 71

KVPZ40VAR 63

KVPZ40WAR 65

KVPZ50 21

KVPZ50/32ITO 23

KVPZ50AR 59

KVPZ50BBAR 61

KVPZ50Q 15

KVPZ50QAR 53

KVPZ50QBBAR 55

KVPZ50QVAR 51

Page

Number


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Copyright ©

Index

Part Number

KVPZ50QWAR 57

KVPZ50S 35

KVPZ50S-200 33

KVPZ50S-200-AR 67

KVPZ50S-200-BBAR 69

KVPZ50S-200-VAR 71

KVPZ50VAR 63

KVPZ50WAR 65

LFW100 99

LFW120 99

LFW50 99

LFW75 99

T13 78

T13DT 79

T13P 79

T13PB 79

T19 78

T19P 79

T19PB 79

T25 78

T25P 79

T25PB 79

T38 78

T38DT 79

T38P 79

T38PB 79

T6 78

T63P 79

T63PB 79

T64 78

T64DT 79

T6P 79

T6PB 79

TB13 78

TB19 78

TB25 78

TB38 78

TB6 78

TB64 78

TSCF004020NBW 86

TSCF004035NBW 86

TSCF006035NBW 86

TSCF006050NBW 86

TSCF008045NBW 86

TSCF008050NBW 86

TSCF008060NBW 86

TSCF008070NBW 86

TSCF016000LBK 85

TSCF016000SBK 85

Page

Number

Part Number

TSCF016001BNC 107

TSCF016001SHV 107

TSCF016016CUA 84

TSCF016016CUG 84

TSCF035000LBK 85

TSCF035000SBK 85

TSCF035001BNC 107

TSCF035001SHV 107

TSCF035002BNC 107

TSCF035002SHV 107

TSCF035004BNC 107

TSCF035004SHV 107

TSCF035037CUA 84

TSCF035037CUG 84

TSCF038020LCB 106

TSCF038020SCB 106

TSCF038034LCB 106

TSCF038034SCB 106

TSCF063000LBK 85

TSCF063000SBK 85

TSCF063063CUA 84

TSCF063063CUG 84

TSCF100000LBK 85

TSCF100000SBK 85

TSCF100102CUA 84

TSCF100102CUG 84

TSCF150000LBK 85

TSCF150000SBK 85

TSCF150153CUA 84

TSCF150153CUG 84

TSIS063000ANC 82

TSIS063000ANT 82

TSIS063000AVC 82

TSIS063000AVT 83

TSIS063000SBK 85

TSIS063000SNC 83

TSIS063000SNT 83

TSIS063000SVC 83

TSIS063000SVT 83

TSIS063100DCA 86

TSIS063250DCS 86

TSIS080000ANC 83

TSIS080000ANT 83

TSIS080000AVC 83

TSIS080000AVT 83

TSIS080000SBK 85

TSIS080000SNC 83

TSIS080000SNT 83

TSIS080000SVC 83

Page

Number

Part Number

TSIS080000SVT 83

TSIS100000ANC 83

TSIS100000ANT 83

TSIS100000AVC 83

TSIS100000AVT 83

TSIS100000SBK 85

TSIS100000SNC 83

TSIS100000SNT 83

TSIS100000SVC 83

TSIS100000SVT 83

TSIS160000ANC 83

TSIS160000ANT 83

TSIS160000AVC 83

TSIS160000AVT 83

TSIS160000SBK 85

TSIS160000SNC 83

TSIS160000SNT 83

TSIS160000SVC 83

TSIS160000SVT 83

TSIS160250DCA 86

TSIS200000ANC 83

TSIS200000ANT 83

TSIS200000AVC 83

TSIS200000AVT 83

TSIS200000SBK 85

TSIS200000SNC 83

TSIS200000SNT 83

TSIS200000SVC 83

TSIS200000SVT 83

TSIS250000ANC 83

TSIS250000ANT 83

TSIS250000AVC 83

TSIS250000AVT 83

TSIS250000SBK 85

TSIS250000SNC 83

TSIS250000SNT 83

TSIS250000SVC 83

TSIS250000SVT 83

TSKF016000ABK 85

TSKF016000ANC 82

TSKF016000ASC 86

TSKF016000AVC 82

TSKF016000SBK 85

TSKF016000SNC 82

TSKF016000SVC 82

TSKF016001BNC 107

TSKF016001SHV 107

TSKF025000ABK 85

TSKF025000ANC 82

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Number

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Index

Part Number

TSKF025000ASC 86

TSKF025000AVC 82

TSKF025000SBK 85

TSKF025000SNC 82

TSKF025000SVC 82

TSKF025001BNC 107

TSKF025001SHV 107

TSKF040000ABK 85

TSKF040000ANC 82

TSKF040000ASC 86

TSKF040000AVC 82

TSKF040000SBK 85

TSKF040000SNC 82

TSKF040000SVC 82

TSKF040001BNC 107

TSKF040001SHV 107

TSKF040002BNC 107

TSKF040002SHV 107

TSKF040020SCB 106

TSKF040034SCB 106

TSKF050000ABK 85

TSKF050000ANC 82

TSKF050000ASC 86

TSKF050000AVC 82

TSKF050000SBK 85

TSKF050000SNC 82

TSKF050000SVC 82

VP13 78

VP19 78

VP63 78

VPR100-201 31

VPR100-201-Q 19

VPR150-330 31

VPR150-330-Q 19

VPR38-111 31

VPR38-111-Q 19

VPR64/38-80 31

VPR64/38-80-Q 19

VPR64-138 31

VPR64-138-Q 19

VPS100 91

VPS100AC 91

VPS150 91

VPS150AC 91

VPS38 91

VPS38AC 91

VPS64 91

VPS64AC 91

VPZ100 21

Page

Number

Part Number

VPZ100AR 59

VPZ100AR-LN 59

VPZ100AR-LN 59

VPZ100BBAR 61

VPZ100BBAR-LN 61

VPZ100ITO 23

VPZ100ITOLG 27

VPZ100ITOLG-LN 27

VPZ100ITO-LN 23

VPZ100ITOP22 111

VPZ100ITOP22LG 111

VPZ100ITOP22LG-LN 111

VPZ100ITOP22-LN 111

VPZ100LG 25

VPZ100LG-LN 25

VPZ100-LN 21

VPZ100Q 15

VPZ100QAR 53

VPZ100QAR-LN 53

VPZ100QAR-NM 53

VPZ100QBBAR 55

VPZ100QBBAR-LN 55

VPZ100QBBAR-NM 55

VPZ100Q-LN 15

VPZ100Q-NM 15

VPZ100QVAR 51

VPZ100QVAR-LN 51

VPZ100QVAR-NM 51

VPZ100QWAR 57

VPZ100QWAR-LN 57

VPZ100QWAR-NM 57

VPZ100S 35

VPZ100S-200 33

VPZ100S-200-AR 67

VPZ100S-200-AR-LN 67

VPZ100S-200-AR-NM 67

VPZ100S-200-BBAR 69

VPZ100S-200-BBAR-LN 69

VPZ100S-200-BBAR-NM 69

VPZ100S-200-VAR 71

VPZ100S-200-VAR-LN 71

VPZ100S-200-VAR-NM 71

VPZ100S-LN 35

VPZ100S-LN-200 33

VPZ100S-NM 35

VPZ100S-NM-200 33

VPZ100VAR 63

VPZ100VAR-LN 63

VPZ100WAR 65

Page

Number

Part Number

VPZ100WAR-LN 65

VPZ150 21

VPZ150AR 59

VPZ150BBAR 61

VPZ150BBAR-LN 61

VPZ150ITO 23

VPZ150ITOLG 27

VPZ150ITOLG-LN 27

VPZ150ITO-LN 23

VPZ150ITOP22 111

VPZ150ITOP22LG 111


VPZ150ITOP22-LN 111

VPZ150LG 25

VPZ150LG-LN 25

VPZ150-LN 21

VPZ150Q 15

VPZ150QAR 53

VPZ150QAR-LN 53

VPZ150QAR-NM 53

VPZ150QBBAR 55

VPZ150QBBAR-LN 55

VPZ150QBBAR-NM 55

VPZ150Q-LN 15

VPZ150Q-NM 15

VPZ150QVAR 51

VPZ150QVAR-LN 51

VPZ150QVAR-NM 51

VPZ150QWAR 57

VPZ150QWAR-LN 57

VPZ150QWAR-NM 57

VPZ150S 35

VPZ150S-200 33

VPZ150S-200-AR 67

VPZ150S-200-AR-LN 67

VPZ150S-200-AR-NM 67

VPZ150S-200-BBAR 69


VPZ150S-200-VAR 71



VPZ150S-BBAR-NM 69

VPZ150S-LN 35

VPZ150S-LN-200 33

VPZ150S-NM 35

VPZ150S-NM-200 33

VPZ150VAR 63

VPZ150VAR-LN 63

VPZ150WAR 65

Page

Number


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Index

Part Number

VPZ150WAR-LN 65

VPZ16 21

VPZ16AR 59

VPZ16AR-LN 59

VPZ16BBAR 61

VPZ16BBAR-LN 61

VPZ16CVDD 45

VPZ16CVDD-LN 45

VPZ16CVDDX 45

VPZ16CVDDX-LN 45

VPZ16ITO 23

VPZ16ITOLG 27

VPZ16ITOLG-LN 27

VPZ16ITO-LN 23

VPZ16ITOP22 111

VPZ16ITOP22LG 111


VPZ16ITOP22-LN 111

VPZ16LAQ 15

VPZ16LAQAR 53

VPZ16LAQAR-LN 53

VPZ16LAQBBAR 55

VPZ16LAQBBAR-LN 55

VPZ16LAQ-LN 15

VPZ16LAQVAR 51

VPZ16LAQVAR-LN 51

VPZ16LAQWAR 57

VPZ16LAQWAR-LN 57

VPZ16LG 25

VPZ16LG-LN 25

VPZ16-LN 21

VPZ16Q 15

VPZ16QAR 53

VPZ16QAR-LN 53

VPZ16QAR-NM 53

VPZ16QBBAR 55

VPZ16QBBAR-LN 55

VPZ16QBBAR-NM 55

VPZ16Q-LN 15

VPZ16Q-NM 15

VPZ16QVAR 51

VPZ16QVAR-LN 51

VPZ16QVAR-NM 51

VPZ16QWAR 57

VPZ16QWAR-LN 57

VPZ16QWAR-NM 57

VPZ16S 35

VPZ16S-200 33

VPZ16S-200-AR 67

Page

Number

Part Number

VPZ16S-200-AR-LN 67

VPZ16S-200-AR-NM 67

VPZ16S-200-BBAR 69



VPZ16S-200-VAR 71



VPZ16S-LN 35

VPZ16S-LN-200 35

VPZ16S-NM 35

VPZ16S-NM-200 33

VPZ16VAR 63

VPZ16VAR-LN 63

VPZ16WAR 65

VPZ16WAR-LN 65

VPZ200 21

VPZ200AR 59

VPZ200BBAR 61

VPZ200ITO 23

VPZ200Q 15

VPZ200QAR 53

VPZ200QBBAR 55

VPZ200QVAR 51

VPZ200QWAR 57

VPZ200S 35

VPZ200S-200 33

VPZ200S-200-AR 67

VPZ200S-200-BBAR 69

VPZ200S-200-VAR 71

VPZ200VAR 63

VPZ200WAR 65

VPZ23S 35

VPZ23S-200 33

VPZ23S-200-AR 67

VPZ23S-200-BBAR 69

VPZ23S-200-VAR 71

VPZ38 21

VPZ38/15CVDD 45

VPZ38/15CVDD-LN 45

VPZ38/15CVDDX 45

VPZ38/15CVDDX-LN 45

VPZ38/20CVDD 45

VPZ38/20CVDD-LN 45

VPZ38/20CVDDX 45

VPZ38/20CVDDX-LN 45

VPZ38AR 59

VPZ38AR-LN 59

VPZ38BBAR 61

Page

Number

Part Number

VPZ38BBAR-LN 61

VPZ38ITO 23

VPZ38ITOLG 27

VPZ38ITOLG-LN 27

VPZ38ITO-LN 23

VPZ38ITOP22 111

VPZ38ITOP22LG 111


VPZ38ITOP22-LN 111

VPZ38LA 21

VPZ38LAAR 59

VPZ38LAAR-LN 59

VPZ38LABBAR 61

VPZ38LABBAR-LN 61

VPZ38LA-LN 21

VPZ38LAQ 15

VPZ38LAQAR 53

VPZ38LAQBBAR 55

VPZ38LAQVAR 51

VPZ38LAQWAR 57

VPZ38LAS 35

VPZ38LAS-200 33

VPZ38LAS-200-AR 67

VPZ38LAS-200-AR-LN 67

VPZ38LAS-200-BBAR 69

VPZ38LAS-200-BBAR-LN 69

VPZ38LAS-200-VAR 71

VPZ38LAS-200-VAR-LN 71

VPZ38LAS-LN 35

VPZ38LAS-LN-200 33

VPZ38LAVAR 63

VPZ38LAVAR-LN 63

VPZ38LAWAR 65

VPZ38LAWAR-LN 65

VPZ38LG 25

VPZ38LG-LN 25

VPZ38-LN 21

VPZ38Q 15

VPZ38QAR 53

VPZ38QAR-LN 53

VPZ38QAR-NM 53

VPZ38QBBAR 55

VPZ38QBBAR-LN 55

VPZ38QBBAR-NM 55

VPZ38QLAAR-LN 53

VPZ38QLABBAR-LN 55

VPZ38QLA-LN 15

VPZ38QLAVAR-LN 51

VPZ38QLAWAR-LN 57

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Index

Part Number

VPZ38Q-LN 15

VPZ38Q-NM 15

VPZ38QVAR 51

VPZ38QVAR-LN 51

VPZ38QVAR-NM 51

VPZ38QWAR 57

VPZ38QWAR-LN 57

VPZ38QWAR-NM 57

VPZ38S 35

VPZ38S-200 33

VPZ38S-200-AR 67

VPZ38S-200-AR-LN 67

VPZ38S-200-AR-NM 67

VPZ38S-200-BBAR 69



VPZ38S-200-VAR 71



VPZ38S-LN 35

VPZ38S-LN-200 33

VPZ38S-NM 35

VPZ38S-NM-200 33

VPZ38VAR 63

VPZ38VAR-LN 63

VPZ38WAR 65

VPZ38WAR-LN 65

VPZ50 21

VPZ50AR 59

VPZ50BBAR 61

VPZ50VAR 63

VPZ50WAR 65

VPZ64 21

VPZ64AR 59

VPZ64AR-LN 59

VPZ64BBAR 61

VPZ64BBAR-LN 61

VPZ64ITO 23

VPZ64ITOLG 27

VPZ64ITOLG-LN 27

VPZ64ITO-LN 23

VPZ64ITOP22 111

VPZ64ITOP22LG 111


VPZ64ITOP22-LN 111

VPZ64LA 21

VPZ64LAAR 59

VPZ64LABBAR 61

VPZ64LAVAR 63

Page

Number

Part Number

VPZ64LAWAR 65

VPZ64LG 25

VPZ64LG-LN 25

VPZ64-LN 21

VPZ64Q 15

VPZ64QAR 53

VPZ64QAR-LN 53

VPZ64QAR-NM 53

VPZ64QBBAR 55

VPZ64QBBAR-LN 55

VPZ64QBBAR-NM 55

VPZ64Q-LN 15

VPZ64Q-NM 15

VPZ64QVAR 51

VPZ64QVAR-LN 51

VPZ64QVAR-NM 51

VPZ64QWAR 57

VPZ64QWAR-LN 57

VPZ64QWAR-NM 57

VPZ64S 35

VPZ64S-200 33

VPZ64S-200-AR 67

VPZ64S-200-AR-LN 67

VPZ64S-200-AR-NM 67

VPZ64S-200-BBAR 69



VPZ64S-200-VAR 71



VPZ64S-LN 35

VPZ64S-LN-200 33

VPZ64S-NM 35

VPZ64S-NM-200 33

VPZ64VAR 63

VPZ64VAR-LN 63

VPZ64WAR 65

VPZ64WAR-LN 65

Page

Number


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118

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Terms and conditions

Torr Scientific Limited

(“The Company”)

1. General

In these terms and conditions “Goods” includes the supply of services in accordance

with the provisions hereof and “Delivery” includes performance

of services as the context may admit. “Order” means an order accepted by

the Company and includes contracts to provide services and also authorised

amendments to an order. “Price” includes mutatis mutandis payment for Goods

and/or services according to time expended, materials used or supplied or on

any other basis than fixed price.

1.2 Estimates or quotations are an invitation to treat only and are valid

for 60 days unless otherwise stated. No order will become effective until it is

accepted or confirmed on behalf of The Company. Such accepted or confirmed

Order will then comprise The Company’s entire agreement with the buyer and

merge all prior discussion quotation offers and understandings.

1.3 These terms and conditions exclude any other terms and conditions

inconsistent therewith which a buyer might seek to impose even though such

other terms and conditions may be submitted in a later document and/or purport

to exclude or supersede any terms or conditions inconsistent with them or

may be contained in any offer acceptance or counter offer made by the buyer.

2. Amendments to Order

Save as expressly agreed in writing signed by the Company’s duly authorised

representative or as provided by clause 5 hereof:-

2.1 If any information supplied by or on behalf of the buyer is insufficient,

incorrect, inaccurate, misleading or if the buyer notifies The Company

of any changes of requirements in relation to any Order offer or acceptance

thereof by the Company The Company shall be entitled to amend the Price, the

terms of payment and the delivery date or delivery schedule as in the circumstances

The Company shall consider fair and reasonable. The Company shall as

soon as practicable notify the buyer in writing of such amendments.

2.2 Any variation or amendments requested by the buyer will only be

valid and binding on The Company when subjected to a change order relating

to the Order duly placed upon and accepted by The Company in writing signed

by a duly authorised representative and subject to appropriate adjustment in

price, delivery date and any other matters.

3. Cancellation of Order

3.1 Cancellations of orders confirmed in writing and made before The

Company has sent an order acknowledgment to the buyer a cancellation fee

will be incurred.

3.2 Cancellation of orders confirmed in writing made after The Company

has sent an order acknowledgment to the buyer. The Company reserves the

right to apply up to a 100% cancellation fee against the total value of the order.

4. Delivery

Times quoted for delivery are to be treated as estimates only and The Company

shall not be liable for failure to deliver within such time. Whether a time for

delivery is quoted or not the time for delivery shall be extended by a reasonable

period if delay in delivery is caused by anything beyond The Company’s

control. Any special delivery requirements must be notified to The Company at

the time of placing an Order. A charge will be made to cover delivery of goods

unless previously agreed in writing.

5. Amendments to Price

The price, delivery dates or any other terms relating to Goods are based upon

The Company’s assessment of materials, labour and buy-in prices and are subjected

to revisions in respect of any increased cost to The Company in respect

thereof.

6. Liability

6.1 All goods will be carefully inspected before delivery to ensure freedom

from defects and general compliance with the Order. The Company undertakes

to replace or repair at the option of The Company and to deliver any

Goods or part thereof proved to the satisfaction of The Company to have been

defective in material or workmanship when originally despatched, if returned

to The Company and accompanied by an official Returns Authorisation Number

from The Company within Twelve months from date of despatch.

Where The Company has manufactured the goods to a design of the Buyer

no liability is accepted by The Company for design errors, which remains the

responsibility of the buyer. The Company shall be entitled to charge for any

additional works carried out at the buyer’s request.

6.1 -a The Company has the right to void the warranty if the product:

(i) is altered or modified in any way; (ii) is otherwise improperly installed;

(iii) has been subjected to improper operation, misuse, abuse, accident or

neglect.

6.2 The Buyer must examine the Goods immediately upon delivery

and within 7 days thereafter notify The Company in writing of any defects

and return any allegedly defective part or parts of the Goods to The Company

or as the Company shall direct see 6.1 at the Buyers expense.

6.3 The Company shall not be liable for any Consequential loss or

loss of profit howsoever arising (including by negligence) to the buyer the

buyer’s staff or any other third party.

6.4 The Company shall not be liable for any Consequential for any

loss expense or damage howsoever arising (including by negligence) to the

buyer the buyer’s staff or any other third party.

7. Patents

The buyer covenants with The Company that it shall forthwith notify The

Company of any allegation of infringement of any patent registered design

trade mark copyright or other intellectual property right enjoyed by

The Company or by the manufacture or supplier of the Goods or any part

thereof.

8. Payment

8.1 Unless otherwise agreed or notified by The Company payment in

full is due 30 days from the date of Invoice and is the essence of the contract.

8.2 The Company reserves the right at any time at its discretion to

demand security for payment before continuing with or delivering any order.

8.3 Interest is chargeable at the discretion of The Company at 3%

per month or part thereof on any late payment beyond the agreed payment

terms.

9. Confidentiality

All information supplied by The Company in any form (other than information

in the public domain) is supplied in confidence and must not be used

by the buyer for any other purpose that the Order and must not be disclosed

to any other party without The Company’s express written consent and then

only on conditions equivalent to this condition and with an express notification

that the information was provided for the buyer only and it is not

intended to be relied upon by any other party.

10. Assignment and Sub-Contracting

The Company may assign or sub-contract such part or parts of any Order

as it sees fit.

11. Risk

The risk in the goods shall be passed onto the buyer at the point of delivery.

12. Customers Own Material

Free issued material issued to the Company for processing against an Order

is carried out at the Buyers risk of damage or loss to that material.

12.1 It is the Buyers responsibility to notify The Company of any process

or materials, which may have a damaging effect on the free issued

material.

13. Lien

Until the company has received payment in full for any goods from the

buyer The Company shall have a general and specific lien on all the Buyer’s

property in the possession or control of The Company for all monies due to

The Company from the buyer.

14. Matters Beyond Company’s Control

The Company shall not be liable for any loss, damage or expense howsoever

arising from any delay or failure of performance arising from circumstance

beyond its control including but not limited to earthquakes, flood, storm,

force majeure, public enemies, invasion, national emergency, strikes, riots,

boycott, interruption of services rendered by any public utility or interference

from any government agency or official

15. Law

This agreement shall in all respects be governed by and constructed in accordance

with the laws of England. The buyer submits to the jurisdiction of

the English courts.

Registered Name & Office: Torr Scientific Limited, Unit 11 Pebsham Rural Business Centre, Pebsham Lane, Bexhill-on-Sea, East Sussex, TN40 2RZ

Registered in England & Wales Number: 3622909 VAT Registration Number: 702 9779 14

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Vacuum Optics Catalogue - June 2021

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