Operation of a RPC with low resistivity bakelite for the endcap region of CMS in a high-rate environment

S. H. Ahn, E. J. Choi, Byungsik Hong, S. J. Hong, D. H. Kang, T. J. Kim, K. S. Lee, Sung Keun Park, W. J. Park, M. S. Ryu, H. H. Shim, K. S. Sim, S. W. Youn, Y. J. Kim, Y. U. Kim, S. K. Nam, S. R. Jung, Y. L. Lee, J. T. Rhee, S. J. LeeD. G. Koo, S. Y. Bahk

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

We present the beam-test results for a real-size prototype resistive plate chamber (RPC) for the endcap region of the Compact Muon Solenoid (CMS) experiment at CERN Large Hadron Collider (LHC). The chamber built with relatively low resistivity bakelite was tested at the Gamma Irradiation Facility (GIF) at CERN under a high photon-flux environment with an effective cluster rate up to about 1.2 kHz/cm2. The characteristics of the present chamber are compatible with the previous results for the muon detection efficiency, time resolustion, mean travel time, and rate capability, which were obtained using a higher resistivity bakelite. The present beam-test results ensure that the RPC made of relatively low resistivity bakelite is also suitable for the CMS muon trigger detector. In addition, we study the position resolution of the endcap RPC of the CMS. By using the median position of the cluster strips, the position resolution can be reduced to only half of the strip width.

Original languageEnglish
Pages (from-to)667-673
Number of pages7
JournalJournal of the Korean Physical Society
Volume41
Issue number5
Publication statusPublished - 2002 Nov 1

Fingerprint

Bakelite (trademark)
solenoids
muons
chambers
electrical resistivity
strip
travel
actuators
prototypes
irradiation
detectors
photons

Keywords

  • CMS
  • Double gap RPC
  • Low resistivity bakelite

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Ahn, S. H., Choi, E. J., Hong, B., Hong, S. J., Kang, D. H., Kim, T. J., ... Bahk, S. Y. (2002). Operation of a RPC with low resistivity bakelite for the endcap region of CMS in a high-rate environment. Journal of the Korean Physical Society, 41(5), 667-673.

Operation of a RPC with low resistivity bakelite for the endcap region of CMS in a high-rate environment. / Ahn, S. H.; Choi, E. J.; Hong, Byungsik; Hong, S. J.; Kang, D. H.; Kim, T. J.; Lee, K. S.; Park, Sung Keun; Park, W. J.; Ryu, M. S.; Shim, H. H.; Sim, K. S.; Youn, S. W.; Kim, Y. J.; Kim, Y. U.; Nam, S. K.; Jung, S. R.; Lee, Y. L.; Rhee, J. T.; Lee, S. J.; Koo, D. G.; Bahk, S. Y.

In: Journal of the Korean Physical Society, Vol. 41, No. 5, 01.11.2002, p. 667-673.

Research output: Contribution to journalArticle

Ahn, SH, Choi, EJ, Hong, B, Hong, SJ, Kang, DH, Kim, TJ, Lee, KS, Park, SK, Park, WJ, Ryu, MS, Shim, HH, Sim, KS, Youn, SW, Kim, YJ, Kim, YU, Nam, SK, Jung, SR, Lee, YL, Rhee, JT, Lee, SJ, Koo, DG & Bahk, SY 2002, 'Operation of a RPC with low resistivity bakelite for the endcap region of CMS in a high-rate environment', Journal of the Korean Physical Society, vol. 41, no. 5, pp. 667-673.
Ahn, S. H. ; Choi, E. J. ; Hong, Byungsik ; Hong, S. J. ; Kang, D. H. ; Kim, T. J. ; Lee, K. S. ; Park, Sung Keun ; Park, W. J. ; Ryu, M. S. ; Shim, H. H. ; Sim, K. S. ; Youn, S. W. ; Kim, Y. J. ; Kim, Y. U. ; Nam, S. K. ; Jung, S. R. ; Lee, Y. L. ; Rhee, J. T. ; Lee, S. J. ; Koo, D. G. ; Bahk, S. Y. / Operation of a RPC with low resistivity bakelite for the endcap region of CMS in a high-rate environment. In: Journal of the Korean Physical Society. 2002 ; Vol. 41, No. 5. pp. 667-673.
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AU - Hong, S. J.

AU - Kang, D. H.

AU - Kim, T. J.

AU - Lee, K. S.

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AU - Kim, Y. U.

AU - Nam, S. K.

AU - Jung, S. R.

AU - Lee, Y. L.

AU - Rhee, J. T.

AU - Lee, S. J.

AU - Koo, D. G.

AU - Bahk, S. Y.

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N2 - We present the beam-test results for a real-size prototype resistive plate chamber (RPC) for the endcap region of the Compact Muon Solenoid (CMS) experiment at CERN Large Hadron Collider (LHC). The chamber built with relatively low resistivity bakelite was tested at the Gamma Irradiation Facility (GIF) at CERN under a high photon-flux environment with an effective cluster rate up to about 1.2 kHz/cm2. The characteristics of the present chamber are compatible with the previous results for the muon detection efficiency, time resolustion, mean travel time, and rate capability, which were obtained using a higher resistivity bakelite. The present beam-test results ensure that the RPC made of relatively low resistivity bakelite is also suitable for the CMS muon trigger detector. In addition, we study the position resolution of the endcap RPC of the CMS. By using the median position of the cluster strips, the position resolution can be reduced to only half of the strip width.

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