Gamma Background Simulation for the RPC Endcap and Barrel regions of CMS/LHC using GEANT4

J. T. Rhee, M. Jamil, S. H. Ahn, Byungsik Hong, S. Y. Bahk, S. J. Hong, M. Ito, T. I. Kang, B. I. Kim, H. C. Kim, J. H. Kim, T. J. Kim, Y. J. Kim, Y. U. Kim, D. G. Koo, K. B. Lee, K. S. Lee, S. J. Lee, S. K. Nam, Sung Keun Park & 2 others M. S. Ryu, K. S. Sim

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Abstract

We present results for the CMS-RPC sensitivity to gamma rays which were simulated with GEANT4 Monte-Carlo Code. The simulations were performed as a function of gamma energy in a range from 0.007 to 1000 MeV. In order to evaluate the γ-induced rates in the CMS muon system, the gamma spectra expected in the CMS endcap and barrel regions were taken into account. The estimated rates induced by an isotropic gamma source in the ME1, ME2, ME3, and ME4 were 138.0, 42.0, 29.0, and 28.0 Hz/cm2, respectively, when the GEANT4 standard electromagnetic package was used for the simulations. Whereas, the hit rates estimated for the MB1 and MB4 stations were ∼ 0.4 and 1.26 Hz/cm2, respectively, when the same gamma-ray source and the same GEANT4 package were employed for the simulatiom.

Original languageEnglish
Pages (from-to)123-126
Number of pages4
JournalNuclear Physics B - Proceedings Supplements
Volume158
Issue number1 SUPPL.
DOIs
Publication statusPublished - 2006 Aug 1

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simulation
muons
stations
gamma rays
electromagnetism
sensitivity
energy

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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Gamma Background Simulation for the RPC Endcap and Barrel regions of CMS/LHC using GEANT4. / Rhee, J. T.; Jamil, M.; Ahn, S. H.; Hong, Byungsik; Bahk, S. Y.; Hong, S. J.; Ito, M.; Kang, T. I.; Kim, B. I.; Kim, H. C.; Kim, J. H.; Kim, T. J.; Kim, Y. J.; Kim, Y. U.; Koo, D. G.; Lee, K. B.; Lee, K. S.; Lee, S. J.; Nam, S. K.; Park, Sung Keun; Ryu, M. S.; Sim, K. S.

In: Nuclear Physics B - Proceedings Supplements, Vol. 158, No. 1 SUPPL., 01.08.2006, p. 123-126.

Research output: Contribution to journalArticle

Rhee, JT, Jamil, M, Ahn, SH, Hong, B, Bahk, SY, Hong, SJ, Ito, M, Kang, TI, Kim, BI, Kim, HC, Kim, JH, Kim, TJ, Kim, YJ, Kim, YU, Koo, DG, Lee, KB, Lee, KS, Lee, SJ, Nam, SK, Park, SK, Ryu, MS & Sim, KS 2006, 'Gamma Background Simulation for the RPC Endcap and Barrel regions of CMS/LHC using GEANT4', Nuclear Physics B - Proceedings Supplements, vol. 158, no. 1 SUPPL., pp. 123-126. https://doi.org/10.1016/j.nuclphysbps.2006.07.019
Rhee, J. T. ; Jamil, M. ; Ahn, S. H. ; Hong, Byungsik ; Bahk, S. Y. ; Hong, S. J. ; Ito, M. ; Kang, T. I. ; Kim, B. I. ; Kim, H. C. ; Kim, J. H. ; Kim, T. J. ; Kim, Y. J. ; Kim, Y. U. ; Koo, D. G. ; Lee, K. B. ; Lee, K. S. ; Lee, S. J. ; Nam, S. K. ; Park, Sung Keun ; Ryu, M. S. ; Sim, K. S. / Gamma Background Simulation for the RPC Endcap and Barrel regions of CMS/LHC using GEANT4. In: Nuclear Physics B - Proceedings Supplements. 2006 ; Vol. 158, No. 1 SUPPL. pp. 123-126.
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AU - Rhee, J. T.

AU - Jamil, M.

AU - Ahn, S. H.

AU - Hong, Byungsik

AU - Bahk, S. Y.

AU - Hong, S. J.

AU - Ito, M.

AU - Kang, T. I.

AU - Kim, B. I.

AU - Kim, H. C.

AU - Kim, J. H.

AU - Kim, T. J.

AU - Kim, Y. J.

AU - Kim, Y. U.

AU - Koo, D. G.

AU - Lee, K. B.

AU - Lee, K. S.

AU - Lee, S. J.

AU - Nam, S. K.

AU - Park, Sung Keun

AU - Ryu, M. S.

AU - Sim, K. S.

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AB - We present results for the CMS-RPC sensitivity to gamma rays which were simulated with GEANT4 Monte-Carlo Code. The simulations were performed as a function of gamma energy in a range from 0.007 to 1000 MeV. In order to evaluate the γ-induced rates in the CMS muon system, the gamma spectra expected in the CMS endcap and barrel regions were taken into account. The estimated rates induced by an isotropic gamma source in the ME1, ME2, ME3, and ME4 were 138.0, 42.0, 29.0, and 28.0 Hz/cm2, respectively, when the GEANT4 standard electromagnetic package was used for the simulations. Whereas, the hit rates estimated for the MB1 and MB4 stations were ∼ 0.4 and 1.26 Hz/cm2, respectively, when the same gamma-ray source and the same GEANT4 package were employed for the simulatiom.

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