Effects of SF 6 on the avalanche mode operation of a real-sized double-gap resistive plate chamber for the compact muon solenoid experiment

S. H. Ahn, B. Hong, S. J. Hong, M. Ito, T. I. Kang, B. I. Kim, J. H. Kim, H. W. Lee, K. B. Lee, K. S. Lee, J. K. Lim, D. H. Moon, S. Park, W. J. Park, M. S. Ryu, H. H. Shim, K. S. Sim, S. Y. Bahk, Y. J. Kim, Y. U. KimD. G. Koo, S. J. Lee, S. K. Nam, J. T. Rhee

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

We present the design and the test results for a real-sized prototype resistive plate chamber by using cosmic-ray muons for the forward region of the Compact Muon Solenoid (CMS) experiment at the Large Hadron Collider (LHC). In particular, we investigate the effects of adding SF 6 to the gas mixture for the avalanche mode operation of a resistive plate chamber. A small fraction of SF 6 is very effective in suppressing streamer signals in a resistive plate chamber. The shapes of the muon detection efficiency and the muon cluster size remain similar, but are shifted to higher operating voltage by SF 6. The noise cluster rate and size are not influenced by SF 6.

Original languageEnglish
Pages (from-to)1090-1095
Number of pages6
JournalJournal of the Korean Physical Society
Volume46
Issue number5
Publication statusPublished - 2005 May

Keywords

  • Avalanche mode
  • CMS
  • LHC
  • Real-size RPC
  • SF

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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    Ahn, S. H., Hong, B., Hong, S. J., Ito, M., Kang, T. I., Kim, B. I., Kim, J. H., Lee, H. W., Lee, K. B., Lee, K. S., Lim, J. K., Moon, D. H., Park, S., Park, W. J., Ryu, M. S., Shim, H. H., Sim, K. S., Bahk, S. Y., Kim, Y. J., ... Rhee, J. T. (2005). Effects of SF 6 on the avalanche mode operation of a real-sized double-gap resistive plate chamber for the compact muon solenoid experiment. Journal of the Korean Physical Society, 46(5), 1090-1095.