Elsevier

Nuclear Instruments and Methods

Volume 25, December 1963–January 1964, Pages 109-117
Nuclear Instruments and Methods

Low level proportional counter for tritium

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Abstract

A proportional counter for the measurement of low tritium activities is described. The cylindrical proportional counter (principal counter) with a volume of about 600 cm3 is the inner part of a low level counting system in which the guard counter (anti-coincidence counter) surrounds the principal counter which is only separated from the annular counter by a thin foil. The ratio of the “transmit” to the “out” counting rate is high compared to other low level counting systems (of the order of 300). The specific feature of the design is the separation of the volume of the internal counter and the anti-coincidence counting ring. The special properties of the counter and some of its operations are discussed.

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Cited by (4)

This paper has originally appeared as a CERN Report (CERN 63-4).

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