A study of non-flammable gas mixture for resistive plate counter

Author

Takamatsu, H. ; Abe, K. ; Hoshi, Y. ; Ishikawa, M. ; Kawamura, N. ; Kawasaki, H. ; Nagamine, T. ; Nakajima, T. ; Neichi, K. ; Takayama, T. ; Yamaguchi, A. ; Yuta, H.

Author_Institution

Tohoku Gakuin Univ., Tagajo, Japan

Volume

43

Issue

3

fYear

1996

fDate

6/1/1996 12:00:00 AM

Firstpage

1208

Lastpage

1212

Abstract

The RPC (resistive plate counter) has good time and position resolution. These factors make it an attractive candidate for trigger system at collider experiment. The standard gas mixtures (Ar+iso-C₄H₁₀+Freon) used in RPC are very flammable when leaked into air. In view of safety issue,we have studied non-flammable gas of Ar+CO₂+iso-C₄H₁₀+Freon as a function of ratio Ar:CO₂ allowed in non-flammable gas mixtures for the RPC with ABS electrodes. The basic performance of the various mixtures have been measured; singles (untriggered) count rate, detection efficiency and charge spectra versus operating voltage. We have found a set of non-flammable mixtures of the kind of Ar+CO₂+Freon contained less than ~8.4% of iso-C₄H₁₀ for K_L/muon counter of KEK B-factory at KEK

Keywords

gas mixtures; proportional counters; safety; ABS electrodes; Ar; CO₂; charge spectra; detection efficiency; nonflammable gas mixture; position resolution; resistive plate counter; safety; trigger system; Argon; Charge measurement; Counting circuits; Current measurement; Detectors; Fires; Flammability; Gases; Mesons; Safety;

fLanguage

English

Journal_Title

Nuclear Science, IEEE Transactions on

Publisher

ieee

ISSN

0018-9499

Type

jour

DOI

10.1109/23.506665

Filename

506665