Vacuum Optics Catalogue - March 2022

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Kodial Zero Length Viewportswith Anti-Reflective CoatingsSpecificationSeal TypeMaximumTemperatureInduction350 °C (KF versions 150 °C)Minimum Temperature minus 20 °CMaximum Rate ofTemperature Change3 °C per minuteKodial Zero LengthViewports with Anti-Reflective CoatingsTorr 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. Pleaseadvise the important wavelengths or wavelength range with your enquiry or order. Wavelengthranges between 190 nm and 1550 nm can be accepted as standard, although coatings for otherwavelength ranges can be quoted on request. Viewports with ‘V’ coatings for a single wavelengthapplications 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 aborosilicate glass optic which is sealed to a Kovar weld ring using an induction heater process. Theoptic assemblies are TIG welded in to flanges and are helium leak tested and cleaned for ultra highvacuum (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 ruggedconstruction of the Kodial viewports allows repeated bake-out with UHV performance, whilst thewindow offers broadband optical transmission from the visible to near infra-red. Anti-reflectivecoatings to match customer reflectance requirements are also processed at TSL. Please advise thewavelength 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 byTSL.Transmission Curve - KodialLeak RatePressure RangeCoating<1x10 -10 atm-cc/sec (He)1 bar to 1x10 -11 mbarSingle layer 1 x QWOT 'AR' coatingoptimised to customer specifiedwavelength range between190 nm and 1550 nmThe graph below shows typical before and after transmission effect of ‘AR’, ‘VAR’, and BBAR’ anti-reflectivecoatings on Kodial Viewports. Customers should specify wavelength range of application with their enquiry.KodialZero LengthPlease note that the optical reflectance curves are approximations and should be used for reference only58Copyright ©www.torrscientific.co.ukSkip to Contents
Kodial Zero Length Viewportswith Anti-Reflective CoatingsCF-1KF-1ISO-1Viewports With Anti-CF-2CF-3Part Number Flange Type A(mm)KF-2KF-3B(mm)C(mm)D(mm)ISO-2ISO-3DiagramFlangeMaterialWeld RingMaterialVPZ16AR NW16CF 34 15 1 12.7 CF-1 304L KovarVPZ16AR-LN NW16CF 34 15 1 12.7 CF-1 316LN KovarKVPZ16AR KF16 25 15 1 12.7 KF-1 304L KovarKVPZ25AR KF25 40 20 1.5 18.5 KF-2 304L KovarVPZ38AR NW35CF 70 32 2.5 12.7 CF-1 304L KovarKodial Zero LengthViewports with Anti-Reflective CoatingsVPZ38LAAR NW35CF 70 38 * 3 12.7 CF-2 304L KovarVPZ38AR-LN NW35CF 70 32 2.5 12.7 CF-1 316LN KovarVPZ38LAAR-LN NW35CF 70 38 * 3 12.7 CF-2 316LN KovarKVPZ40/32AR NW35CF 70 32 2.5 12.7 KF-1 316L KovarKVPZ40AR KF40 55 38 * 3 18.5 KF-3 304L KovarKVPZ50AR KF50 75 38 * 3 15 KF-3 304L KovarVPZ50AR NW50CF 86 38 * 3 16 CF-2 304L KovarISO63VPZAR ISO63 95 38 * 3 12 ISO-1 304L KovarVPZ64AR NW63CF 114 63 3 17.4 CF-1 304L KovarVPZ64LAAR NW63CF 114 65 3.5 17.4 CF-2 304L KovarVPZ64AR-LN NW63CF 114 63 3 17.4 CF-1 316LN KovarVPZ100AR NW100CF 152 89 4 19.9 CF-3 304L KovarVPZ100AR-LN NW100CF 152 89 4 19.9 CF-3 316LN KovarISO100VPZAR ISO100 130 63 3 12 ISO-2 304L KovarVPZ150AR NW150CF 203 136 6.5 22.3 CF-3 304L KovarVPZ100AR-LN NW150CF 203 136 6.5 22.3 CF-3 316LN KovarISO160VPZAR ISO160 180 89 4 12 ISO-3 304L KovarVPZ200AR NW200CF 254 136 8 24.5 CF-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 rangebetween 190nm and 1550nm can be accepted as standard, although coatings for other wavelengthscan be quoted on request.www.torrscientific.co.uk 59Skip to ContentsCopyright ©
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Issue March 20222Copyright ©www.to
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ContentsCompany Introduction ......
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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 16 and 17: Bonded Fused Silica Zero Length Vie
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 60 and 61: Kodial Zero Length Viewportswith Br
Page 62 and 63: Kodial Zero Length Viewportswith
Page 64 and 65: Kodial Zero Length Viewportswith
Page 66 and 67: Sapphire viewports with Anti-Reflec
Page 68 and 69: Sapphire viewports withBroadband An
Page 70 and 71: Sapphire viewports with‘VAR’ An
Page 72 and 73: AR CoatedZinc Selenide ZeroLength V
Page 74 and 75: AR Coated Zinc Selenide Zero Length
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Page 78 and 79: Glass to Metal SealsCF Tubulated Ko
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Page 82 and 83: KF and ISO Centering RingsSpecifica
Page 84 and 85: CF Copper GasketsSpecificationMater
Page 86 and 87: Clamps and FastenersKF Swing Clamps
Page 88 and 89: Atom Trap ChambersSpecificationBody
Page 90 and 91: Viewport ShuttersFeaturesManual or
Page 96 and 97: OpticsFused SilicaFused Silica is a
Page 98 and 99: Attenuation Filter WheelsSpecificat
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Page 102 and 103: CVD DiamondSpecificationTolerance o
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Page 106 and 107: 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 - March 2022

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