比例計數(shù)管是一種檢測器，利用入射的X射線引起的內部氣體的電離作用。通過向檢測器內部的中心電極施加高電壓，使因X射線產(chǎn)生的離子對數(shù)量放大，因此可以取出大的信號。此外，還可以獲得與入射的X射線能量成正比的脈沖高度。
由于這些特性，用于X射線的比例計數(shù)管適用于測量鍍層厚度等。封入的氣體備齊了兩種，分別為氙（Xe）及用于低能量X射線的氖（Ne）。
特點:
檢測器的使用壽命長，穩(wěn)定性高。
產(chǎn)品陣容 ：
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General Specifications
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Window Specifications
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Electrical Specifications
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Resolution
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Image
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Tube Type
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Fill Gas
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Housing Material
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Gas Pressure
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Maximum Length
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Maximum Diameter
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Effective Length
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Conne- ctor
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Opera- ting Tempe- rature
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Material
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Thick- ness
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Dimention
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Operating Voltage Range
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Recomme- nded Voltage
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Fe-55 (5.9keV)
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Cd-109 (22.1keV)
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Down load
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-
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E6858
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Xe+ additive gas
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Stainless steel
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approx. 100kPa
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252mm
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50.8mm
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175mm
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Pin
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-20°C ～ 70°C
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Beryllium
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0.3 mm
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40mm(W) X 82mm(L)
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1,900 - 2,300V
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2,000V
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21% FWHM (Max.)
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10% FWHM (Max.)
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-
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-
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E6859B
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approx. 90kPa
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204mm
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50.8mm
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142mm
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MHV
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-20°C - 70°C
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0.2 mm
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40mm(W) X 82mm(L)
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1,800 - 2,100V
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1,850V
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19% FWHM (Max.)
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9% FWHM (Max.)
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-
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-
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E6859C
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approx. 100kPa
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204mm
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50.8mm
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142mm
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MHV
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-20°C - 70°C
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0.1mm
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26mm(W) X 52mm(L)
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1,900 -2,300V
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2,000V
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19%FWHM (Max.)
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9%FWHM (Max.)
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-
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-
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E6864
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approx. 100kPa
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178mm
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50.8mm
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116mm
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MHV
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-20°C - 70°C
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0.1 mm
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26mm(W) X 52mm(L)
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1,900 - 2,300V
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2,000V
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19% FWHM (Max.)
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9% FWHM (Max.)
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-
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-
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E6860(C)
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Ne+ additive gas
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approx. 70kPa
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156mm
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38mm
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75mm
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MHV
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-20°C - 70°C
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Beryllium
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0.062 mm
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20mm(W) X 20mm(L)
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1,100 - 1,400V
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1,300V
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20% FWHM (Max.)
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-
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-
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-
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E6860(P)
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126mm
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Pin
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-
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E6874
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approx. 100kPa
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120mm
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25.4mm
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68mm
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SHV or MHV
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-20°C - 70°C
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Beryllium
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0.025 mm
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9.5mm(W) X 25.4mm(L)
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1,300 - 1,500
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1,360V
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20% FWHM (Max.)
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-
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-
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