Title :
Dead zone characteristics of SQS and GM modes in Kr-, Ar-, and Ne-mixtures
Author :
Nohtomi, A. ; Sakae, T. ; Matoba, M. ; Koori, N.
Author_Institution :
Dept. of Nucl. Eng., Kyushu Univ., Fukuoka, Japan
fDate :
8/1/1992 12:00:00 AM
Abstract :
Dead zones of a gas counter have been studied systematically for various gas mixtures at gas pressures equal to and lower than 1 atm. Evaluated values of the dead zone for the self-quenching streamer (SQS) mode were 190-390 μs-cm at 1 atm. Characteristics of the dead zone were explained by considering the effect of SQS ions. The critical gas pressure, at which the operation mode changes from the SQS mode to the GM mode, was determined for each gas mixture on the basis of the dead zone measurement. Operation mode diagrams of the counter were drawn according to those results
Keywords :
Geiger counters; gas mixtures; position sensitive particle detectors; streamer chambers; 1 atm; GM mode; Geiger Muller mode; SQS mode; dead zone; gas counter; gas mixtures; self-quenching streamer; Anodes; Educational institutions; Electrons; Phase change materials; Pressure measurement; Pulse generation; Radiation detectors; Radiation monitoring; Systems engineering education; Wire;
Journal_Title :
Nuclear Science, IEEE Transactions on
