Vacuum Optics Catalogue - June 2021

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Bonded Fused Silica Zero Length ViewportsSpecificationBonded Fused SilicaZero Length ViewportsSeal TypeMaximumTemperatureMinimumTemperatureMaximum Rateof TemperatureChangeLeak RateP re s s u re R a n g eS u r f a c e Q u a l i t yParallelismFlatnessLaser DamageThresholdBondedTorr Scientific fused silica viewports are offered in CF, ISO and KF flange styles. The viewports comprisea high purity laser quality fused silica optic with precise flatness, parallelism, scratch and digspecifications. The ultra high vacuum (UHV) CF versions are offered using high grade 304L or 316LNstainless steel flanges. Non-magnetic viewports are offered for low energy applications or surfacescience applications needing low magnetic fields. The non-magnetic viewports use a non-magneticweld ring instead of the regular kovar weld ring. Flanges in 304L stainless steel are used for thehigh vacuum KF and ISO viewports. TSL viewports are manufactured in cleanroom conditions andhelium leak tested, cleaned and packed to UHV standards. The bonded construction of the fusedsilica viewports allows repeated bake-out to a maximum of 120 °C with UHV performance, whilstthe window offers broadband optical transmission through deep UV, visible to near infra-red. Variousanti-reflective coatings to match customer reflectance requirements are processed at TSL andavailable as options listed in the AR coated viewport section of the catalogue. Laser viewports witha VAR coating optimised for specific customer specified laser wavelength, reducing reflectance tobelow 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 componentaccessories are also supplied by TSL.120 °Cminus 45 °C3 °C per minute<1x10 -10 atm-cc/sec (He)1 bar to 1x10 -9 mbar20/10 scratch/dig< 3 arc minutesλ/8 at 632.8 nmCW Continuous Wave - 500 W/cm 2 at 530 nmPulsed 2 J/cm 2 at 530 nm and 10 ns pulse width(note, varies with wavelength, pulse width, laser typeand cleanliness of optic)Transmission Curve - Fused SilicaPlease note that the optical transmission curves are approximations and should be used for reference only16Copyright ©www.torrscientific.co.ukSkip to Contents
Bonded Fused Silica Zero Length ViewportsCF-1KF-1ISO-1CF-2CF-3KF-2KF-3ISO-2ISO-3Bonded Fused SilicaZero Length ViewportsPart NumberFlangeTypeA(mm)B(mm)C(mm)D(mm)DiagramFlangeMaterialWeld RingMaterialBVPZ16Q NW16CF 34 15 1.5 12.7 CF-1 304L KovarBVPZ16Q-LN NW16CF 34 15 1.5 12.7 CF-1 316LN KovarBVPZ16Q-NM NW16CF 34 15 1.5 12.7 CF-1 316LN Non-MagneticBKVPZ16Q KF16 25 15 1.5 15 KF-1 304L KovarBKVPZ25Q KF25 40 20 2 18.5 KF-1 304L KovarBVPZ38Q NW35CF 70 32 3 12.7 CF-1 304L KovarBVPZ38LAQ NW35CF 70 38 3.5 12.7 CF-2 304L KovarBVPZ38Q-LN NW35CF 70 32 3 12.7 CF-1 316LN KovarBVPZ38QLA-LN NW35CF 70 38 3.5 12.7 CF-2 316LN KovarBVPZ38Q-NM NW35CF 70 32 3 12.7 CF-1 316LN Non-MagneticBKVPZ40/32Q KF40 55 32 3 12.7 KF-1 304L KovarBKVPZ40Q KF40 55 38 3.5 18.5 KF-2 304L KovarBKVPZ50Q KF50 75 38 3.5 15 KF-3 304L KovarBISO63QVPZ ISO63 95 38 3.5 12 ISO-1 304L KovarBVPZ64Q NW63CF 114 63 4.5 17.4 CF-1 304L KovarBVPZ64Q-LN NW63CF 114 63 4.5 17.4 CF-1 316LN KovarBVPZ64Q-NM NW63CF 114 63 4.5 17.4 CF-1 316LN Non-MagneticBVPZ100Q NW100CF 152 89 6 19.9 CF-3 304L KovarBVPZ100Q-LN NW100CF 152 89 6 19.9 CF-3 316LN KovarBVPZ100Q-NM NW100CF 152 89 6 19.9 CF-3 316LN Non-MagneticBISO100QVPZ ISO100 130 63 4.5 12 ISO-2 304L KovarBVPZ150Q NW150CF 203 136 9.5 22.3 CF-3 304L KovarBVPZ150Q-LN NW150CF 203 136 9.5 22.3 CF-3 316LN KovarBVPZ150Q-NM NW150CF 203 136 9.5 22.3 CF-3 316LN Non-MagneticBISO160QVPZ ISO160 180 89 6 12 ISO-3 304L KovarBVPZ200Q NW200CF 254 136 9.5 24.5 CF-3 304L Kovarwww.torrscientific.co.uk 17Skip to ContentsCopyright ©
Page 2 and 3: Issue June 20212Copyright ©www.tor
Page 4 and 5: ContentsCompany Introduction ......
Page 6 and 7: 6www.torrscientific.co.ukSkip to Co
Page 8 and 9: FacilitiesFacilitiesAll brazed and
Page 10 and 11: Product IntroductionViewportsTorr S
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Page 14 and 15: Fused Silica Zero Length ViewportsF
Page 18 and 19: Fused Silica Re-Entrant ViewportsSp
Page 20 and 21: Kodial Zero Length ViewportsSpecifi
Page 22 and 23: Kodial Zero Length Viewports with I
Page 24 and 25: Kodial Zero Length Viewportswith X-
Page 26 and 27: Kodial Zero Length Viewports withIT
Page 28 and 29: Non-Magnetic Kodial Zero Length Vie
Page 30 and 31: Kodial Re-Entrant ViewportsSpecific
Page 32 and 33: 200°C Sapphire Zero Length Viewpor
Page 34 and 35: High Temperature Sapphire Zero Leng
Page 36 and 37: Zinc Selenide Zero Length Viewports
Page 38 and 39: Magnesium Fluoride Zero Length View
Page 40 and 41: Calcium Fluoride Zero Length Viewpo
Page 42 and 43: Barium Fluoride Zero Length Viewpor
Page 44 and 45: CVD Diamond UHV ViewportsSpecificat
Page 46 and 47: Quartz Natural Z-Cut Zero Length Vi
Page 48 and 49: Differentially-pumped ViewportsSpec
Page 50 and 51: Fused Silica UHV Laser Viewportswit
Page 52 and 53: Fused Silica UHV Viewportswith Anti
Page 54 and 55: Fused Silica UHV Viewportswith Broa
Page 56 and 57: Fused Silica UHV Viewportswith ‘W
Page 58 and 59: Kodial Zero Length Viewportswith An
Page 60 and 61: Kodial Zero Length Viewportswith Br
Page 62 and 63: Kodial Zero Length Viewportswith
Page 64 and 65: Kodial Zero Length Viewportswith
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Sapphire viewports with Anti-Reflec
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Sapphire viewports withBroadband An
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Sapphire viewports with‘VAR’ An
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AR CoatedZinc Selenide ZeroLength V
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AR Coated Zinc Selenide Zero Length
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Glass to Metal SealsCF Tubulated Ko
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KF and ISO Centering RingsSpecifica
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CF Copper GasketsSpecificationMater
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Clamps and FastenersKF Swing Clamps
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Atom Trap ChambersSpecificationBody
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Viewport ShuttersFeaturesManual or
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OpticsFused SilicaFused Silica is a
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Attenuation Filter WheelsSpecificat
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CVD DiamondSpecificationTolerance o
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Ceramic BreaksSpecificationSeal Typ
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UHV CF RHEED ScreensCF ViewportCF V
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IndexPart NumberATC-10PC 89ATC-10PU
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IndexPart NumberKVPZ50QWAR 57KVPZ50
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IndexPart NumberVPZ150WAR-LN 65VPZ1
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118Copyright ©www.torrscientific.c
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Vacuum Optics Catalogue - June 2021

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