[db:国别翻译]美国abtex corp
Abtex 公司自 1978 年以来一直生产纤维磨料刷工具。1980 年,我们推出了第一台用于铝挤压件的 Abtex 端……...

The proportional detector from VacuTec is used for axial beam radiation measurements, this tube detects alpha radiation separately from other fractions of radiation (beta, gamma). The height of the counts caused by alpha radiation is higher than that caused by beta radiation at an operating voltage less than 1500 V.A special construction and gas filling enables this condition to be attained.
Specifications
The specifications of the proportional detector 70020 are:
Alpha radiation: 1500 V
Beta radiation: 1800 V
Filling gas He/organic vapour
Entrance window mica, 2 mg/cm2
Alpha energy range > 3 MeV
Beta energy range > 40 keV
Recommended operating voltage
Entrance window diameter 31 mm
Abtex 公司自 1978 年以来一直生产纤维磨料刷工具。1980 年,我们推出了第一台用于铝挤压件的 Abtex 端……...
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