DocumentCode
833332
Title
Generation of SQS in quenching gas (CH4) of proportional counter and related problems
Author
Ijiri, Hidenobu ; Watanabe, Yukinobu ; Uozumi, Yusuke ; Nohtomi, Akihiko ; Widodo, Susilo ; Sakae, T. ; Matoba, Masam ; Koori, Norihiko
Author_Institution
Kyushu Univ., Fukuoka, Japan
Volume
39
Issue
4
fYear
1992
fDate
8/1/1992 12:00:00 AM
Firstpage
724
Lastpage
727
Abstract
Two topics on the phenomena in proportional counters are reported. One is the observation of the SQS transition in pure methane gas under irradiation by 4.5-keV X-rays. The effect of a small amount of argon on the SQS transition was investigated with gas mixtures (CH4:Ar) at various mixing ratios. The SQS transition was not observed in pure methane gas, although it was observed still in the gas mixture of 99.8:0.2. The other was the measurement of electron drift characteristics with a single-wire gas counter operated in the SQS transition regions. The counter gas used was a mixture of argon and methane to which ethanol vapor was added. From a comparison with the proportional mode, the use of the SQS mode is recommended to obtain a better time resolution in the application of drift counters
Keywords
proportional counters; streamer chambers; 4.5 keV; Ar-methane mixtures; SQS mode; SQS transition; drift counters; electron drift characteristics; ethanol vapor; proportional counters; pure methane gas; quenching gas; single-wire gas counter; Anodes; Argon; Counting circuits; Gases; Voltage; X-rays;
fLanguage
English
Journal_Title
Nuclear Science, IEEE Transactions on
Publisher
ieee
ISSN
0018-9499
Type
jour
DOI
10.1109/23.159695
Filename
159695
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