Vacuum Optics Catalogue - March 2022

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Kodial Zero Length Viewportswith X-Ray Protection Lead GlassSpecificationSeal TypeInductionMaximumTemperature350 °CKodial Zero LengthViewports withX-ray ProtectionLead GlassTorr Scientific CF kodial viewports are offered includingan additional 6mm thick lead glass discclipped in to the atmosphere side of the kodial windowfor X-Ray protection. The viewports comprisea borosilicate glass optic which is sealed to a kovarweld ring using an induction heater process. Theoptic assemblies are TIG welded in to the flangesand are helium leak tested and cleaned for ultrahigh vacuum (UHV) conditions. The CF versions areoffered using 304L or 316LN stainless steel flanges.The rugged construction of the Kodial viewports allowsrepeated bake-out with UHV performance. Thekodial/lead glass window assembly provides visibletransmission as shown in the graph below.Minimum Temperature minus 20 °CMaximum Rate ofTemperature ChangeLeak RatePressure Range3 °C per minute<1x10 -10 atm-cc/sec (He)1 bar to 1x10 -11 mbarLead Glass SpecificationOptical PropertiesRefractive Index 1.76Transmission % @ 550nm through 5mm path >=85.0Chemical PropertiesLead (Pb) 48%Barium (Ba) 15%Mechanical PropertiesDensity (g/cm 2 ) 4.8Knoop Hardness (kg/mm 2 ) 440Young’s Modulus (GPa) 62.7Transmission Curve – Kodial including the Lead Glass DiscPlease note that the optical transmission curves are approximations and should be used for reference only24Copyright ©www.torrscientific.co.ukSkip to Contents
Kodial Zero Length Viewportswith X-Ray Protection Lead GlassShielding characteristicsThicknessMinmum lead equivalence (mm) for stated X-ray tube voltagemm 100 kV 110 kV 150 kV 200 kV 250 kV 300 kV5-6.5 1.7 1.6 1.5 1.3 1.3 1.3CF-1CF-2Kodial Zero LengthViewports withX-ray ProtectionLead GlassPart Number Flange Type A(mm)B(mm)C(mm)D(mm)DiagramFlangeMaterialWeld RingMaterialVPZ16LG NW16CF 34 15 1 6 CF-1 304L KovarVPZ16LG-LN NW16CF 34 15 1 6 CF-1 316LN KovarVPZ38LG NW35CF 70 32 2.5 6 CF-1 304L KovarVPZ38LG-LN NW35CF 70 32 2.5 6 CF-1 316LN KovarVPZ64LG NW63CF 114 63 3 6 CF-1 304L KovarVPZ64LG-LN NW63CF 114 63 3 6 CF-1 316LN KovarVPZ100LG NW100CF 152 89 4 6 CF-2 304L KovarVPZ100LG-LN NW100CF 152 89 4 6 CF-2 316LN KovarVPZ150LG NW150CF 203 136 6.5 6 CF-2 304L KovarVPZ150LG-LN NW150CF 203 136 6.5 6 CF-2 316LN Kovarwww.torrscientific.co.uk 25Skip to ContentsCopyright ©
Page 2 and 3: Issue March 20222Copyright ©www.to
Page 4 and 5: 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 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
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
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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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Vacuum Optics Catalogue - March 2022

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