Development of RE1/1 RPCs for the CMS muon trigger system

S. Park, S. H. Ahn, S. Akimenko, P. S. Anan, S. Y. Bahk, Y. Ban, J. Cai, S. W. Cho, I. Crotty, Y. C. Ge, B. Hong, S. J. Hong, G. Iaselli, M. Ito, S. Jonalegedda, T. I. Kang, B. I. Kim, H. C. Kim, J. H. Kim, T. J. KimY. J. Kim, Y. U. Kim, D. G. Koo, R. Kuo, H. S. Lee, K. B. Lee, K. S. Lee, S. J. Lee, J. K. Lim, H. Liu, A. Marinov, S. K. Nam, S. J. Qian, H. B. Rhee, J. T. Rhee, M. S. Ryu, A. Sharma, K. S. Sim, W. Van Doninck, Z. H. Xue

Research output: Contribution to journalArticlepeer-review


The first six Resistive Plate Chambers (RPCs) of RE1/1 in the forward region of the Compact Muon Solenoid (CMS) detector were constructed and are being tested. These RPCs cover the pseudo-rapidity region from 1.6 to 2.1 and will serve as the base detector for the CMS RPC muon trigger. We report that these six RPCs are being tested with the CMS RPC quality certification procedures and that a full measurement of a chamber efficiency of 95 ± 4 % has been achieved at an operating voltage of 9.4 kV. This performance demonstrates that the RPC is qualified to be tested at the closest distance to the beam pipe as the muon trigger detector at the full LHC design luminosity.

Original languageEnglish
Pages (from-to)665-667
Number of pages3
JournalNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Issue number3
Publication statusPublished - 2009 May 1


  • CMS RPC muon trigger
  • Compact Muon Solenoid (CMS)
  • Resistive Plate Chamber (RPC)

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Instrumentation


Dive into the research topics of 'Development of RE1/1 RPCs for the CMS muon trigger system'. Together they form a unique fingerprint.

Cite this