Vacuum Optics Catalogue - March 2022

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Quartz Natural Z-Cut Zero Length ViewportsSpecificationSeal TypeMaximumTemperatureBond120 °CMinimum Temperature minus 45 °CMaximum Rate ofTemperature Change3 °C per minuteQuartz NaturalZ-Cut Zero LengthViewportsLeak RatePressure RangeSurface QualityParallelismTorr Scientific Z-Cut natural quartz viewports are offered in CF, ISO and KF flange styles. The viewportscomprise 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 windowsare also transparent in the visible spectrum allowing easy adjustment with a HeNe laser and do notchange the state of light polarization. Z-cut quartz also has excellent transparency in the vacuum UVportion of the spectrum and is therefore a popular window material for use in UV spectroscopy andUV lithography. 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 surface scienceapplications needing low magnetic fields. The non-magnetic viewports use a non-magnetic weldring instead of the regular kovar weld ring. Flanges in 304L stainless steel are used for the high vacuumKF 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-outto 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/cameraviewports. Annealed copper gaskets and other component accessories are also supplied by TSL.Transmission Curve - Quartz Natural Z-CutFlatness λ/2<1x10 -10 atm-cc/sec (He)1 bar <1x10 -9 mbar20/10 scratch/dig< 3 arc minutesPlease note that the optical transmission curves are approximations and should be used for reference only46Copyright ©www.torrscientific.co.ukSkip to Contents
Quartz Natural Z-Cut Zero Length ViewportsCF-1KF-1ISO-1CF-2KF-2ISO-2Quartz NaturalZ-Cut Zero LengthViewportsCF-3KF-3ISO-3Part NumberFlangeTypeA(mm)B(mm)C(mm)D(mm)DiagramFlangeMaterialWeld RingMaterialBVPZ16NQZ NW16CF 34 15 1.5 12.7 CF-1 304L KovarBVPZ16NQZ-NM NW16CF 34 15 1.5 12.7 CF-1 316LN Non-MagneticBKVPZ16NQZ KF16 40 15 1.5 12.7 KF-1 304L KovarBKVPZ25NQZ KF25 40 20 3 18.5 KF-1 304L KovarBVPZ38NQZ NW35CF 70 32 3 12.7 CF-1 304L KovarBVPZ38LANQZ NW35CF 70 38 3.5 12.7 CF-2 304L KovarBVPZ38NQZ-NM NW35CF 70 32 3 12.7 CF-1 316LN Non-MagneticBKVPZ40/32NQZ KF40 55 32 3 12.7 KF-1 304L KovarBKVPZ40NQZ KF40 55 38 3.5 18.5 KF-2 304L KovarBKVPZ50NQZ KF50 75 38 3.5 15 KF-3 304L KovarBVPZ64NQZ NW63CF 114 63 4.5 17.4 CF-1 304L KovarBVPZ64NQZ-NM NW63CF 114 63 4.5 17.4 CF-1 316LN Non-MagneticBISO63VPZNQZ ISO63 95 38 3.5 12 ISO-1 304L KovarBVPZ100NQZ NW100CF 152 89 6 19.9 CF-3 304L KovarBVPZ100NQZ-NM NW100CF 152 89 6 19.9 CF-3 316LN Non-MagneticBISO100VPZNQZ ISO100 130 63 4.5 12 ISO-2 304L KovarBISO160VPZNQZ ISO160 180 89 6 12 ISO-3 304L Kovarwww.torrscientific.co.uk 47Skip to ContentsCopyright ©
Page 2 and 3: Issue March 20222Copyright ©www.to
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 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 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
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
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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 - March 2022

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