A high rate gas mixture for glass RPC operated in streamer mode

N. Kikuchi, S. Ando, T. Fujikawa, H. Hayasaka, Y. Hoshi, M. Kumagai, Tadashi Nagamine, K. Neichi, A. Yamaguchi

Research output: Contribution to journalConference articlepeer-review


In Belle, glass RPCs have operated in streamer mode with the Belle standard gas mixture. However, efficiencies of RPCs for the outermost few layers of the endcap region decrease from ∼95% to ∼50% due to hit-rate of 1.4 Hz/cm 2 from neutron backgroud originated from KEKB with higher beam current operation. To operate efficiently glass RPCs at this high background rate, high rate gas mixtures using SF 6 , have been tested. We report the performance of glass RPC.

Original languageEnglish
Pages (from-to)437-441
Number of pages5
JournalIEEE Nuclear Science Symposium Conference Record
Publication statusPublished - 2004 Dec 1
Event2004 Nuclear Science Symposium, Medical Imaging Conference, Symposium on Nuclear Power Systems and the 14th International Workshop on Room Temperature Semiconductor X- and Gamma- Ray Detectors - Rome, Italy
Duration: 2004 Oct 162004 Oct 22


  • Glass RPC
  • High rate gas
  • Streamer mode

ASJC Scopus subject areas

  • Radiation
  • Nuclear and High Energy Physics
  • Radiology Nuclear Medicine and imaging


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