THE 4$pi$-FLOW PROPORTIONAL COUNTER FOR MEASURING LOW ACTIVITY LEVELS
Journal Article
·
· Tr. Leningr. Tekhnol. Inst. im. Lensoveta
OSTI ID:4735985
The design and characteristics of a 4 pi -flow proportional counter intended for measuring low activity levels are described. The spherical shape of the counter makes it possible to reduce to a minimum the harmful surface of leadin insulators by applying the loop system of anodes. The background obtained with the counter in an underground room behind a protection of 2-cm lead, 15-cm steel, and 1.6-cm brass amounted to 5 to 7 pulse/min. Investigations were made on the dependence of counter characteristics (value of operating potertial, length and slope of the plateau) on the percentage content of methane in a mixture with Ar, filament thickness, loop diameter, arrangement of the loop, and mechanical and thermal treatment of the filament. (Referativnyy Zhurnal, Fizika, No. 1, 1962)
- Research Organization:
- Originating Research Org. not identified
- NSA Number:
- NSA-17-008641
- OSTI ID:
- 4735985
- Journal Information:
- Tr. Leningr. Tekhnol. Inst. im. Lensoveta, Journal Name: Tr. Leningr. Tekhnol. Inst. im. Lensoveta Vol. Vol: No. 55
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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