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

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

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)


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(untriggerd) 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+ Freoii contained less than ∼ 8.4% of isoC4H10 for KL/muon counter of KEK B-factory at KEK.

Original languageEnglish
Pages (from-to)1208-1212
Number of pages5
JournalIEEE Transactions on Nuclear Science
Issue number3 PART 2
Publication statusPublished - 1996
Externally publishedYes

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Nuclear Energy and Engineering
  • Electrical and Electronic Engineering


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