Beam test results of CMS RPCs at high eta region under high-radiation environment

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

doi:10.1016/j.nima.2004.06.125

Beam test results of CMS RPCs at high eta region under high-radiation environment

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

Department of Physics

Research output: Contribution to journal › Conference article

16 Citations (Scopus)

Abstract

The Compact Muon Solenoid (CMS) forward resistivity plate chambers (RPCs) at the high eta region must be operated in presence of a radiation-induced rate as high as 1 kHz/cm². It is still unknown if the RPCs coated with linseed oil can be operated under such a high-radiation environment over the lifetime of CMS. Non-oiled RPCs may be one of the options since phenolic or melamine-coated bakelite is chemically stabler than linseed oil. We have constructed oiled and non-oiled RPCs at the high eta region of CMS using phenolic bakelite and tested them in the Gamma Irradiation Facility at CERN. While both RPCs show the same characteristics in the efficiency and the strip multiplicity, the non-oiled RPC generates an intrinsic noise rate of 50 Hz/cm², compared to only 5 Hz/cm² for the oiled RPC, both at 10.0kV which is about 100 V above the 95% knee of the efficiency curve.

Original language	English
Pages (from-to)	37-41
Number of pages	5
Journal	Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume	533
Issue number	1-2
DOIs	https://doi.org/10.1016/j.nima.2004.06.125
Publication status	Published - 2004 Nov 1
Event	Proceedings of the Seventh International Workshop on Resistive - Clermont-Ferrand, France Duration: 2003 Oct 20 → 2003 Oct 22

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Keywords

CMS
LHC
Melamine
Non-oiled RPC
Oiled RPC
Phenolic

ASJC Scopus subject areas

Nuclear and High Energy Physics
Instrumentation

Cite this

Park, S., Ahn, S. H., Bahk, S. Y., Hong, B., Hong, S. J., Kang, D. H., Kang, T. I., Kim, T. J., Kim, Y. J., Kim, Y. U., Koo, D. G., Lee, H. W., Lee, K. S., Lee, S. J., Lim, J. K., Moon, D. H., Nam, S. K., Oh, J. K., Park, W. J., ... Sim, K. S. (2004). Beam test results of CMS RPCs at high eta region under high-radiation environment. Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 533(1-2), 37-41. https://doi.org/10.1016/j.nima.2004.06.125

Beam test results of CMS RPCs at high eta region under high-radiation environment. / Park, S.; Ahn, S. H.; Bahk, S. Y.; Hong, B.; Hong, S. J.; Kang, D. H.; Kang, T. I.; Kim, T. J.; Kim, Y. J.; Kim, Y. U.; Koo, D. G.; Lee, H. W.; Lee, K. S.; Lee, S. J.; Lim, J. K.; Moon, D. H.; Nam, S. K.; Oh, J. K.; Park, W. J.; Rhee, J. T.; Ryu, M. S.; Shim, H. H.; Sim, K. S.

In: Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 533, No. 1-2, 01.11.2004, p. 37-41.

Research output: Contribution to journal › Conference article

Park, S, Ahn, SH, Bahk, SY, Hong, B, Hong, SJ, Kang, DH, Kang, TI, Kim, TJ, Kim, YJ, Kim, YU, Koo, DG, Lee, HW, Lee, KS, Lee, SJ, Lim, JK, Moon, DH, Nam, SK, Oh, JK, Park, WJ, Rhee, JT, Ryu, MS, Shim, HH & Sim, KS 2004, 'Beam test results of CMS RPCs at high eta region under high-radiation environment', Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, vol. 533, no. 1-2, pp. 37-41. https://doi.org/10.1016/j.nima.2004.06.125

Park, S. ; Ahn, S. H. ; Bahk, S. Y. ; Hong, B. ; Hong, S. J. ; Kang, D. H. ; Kang, T. I. ; Kim, T. J. ; Kim, Y. J. ; Kim, Y. U. ; Koo, D. G. ; Lee, H. W. ; Lee, K. S. ; Lee, S. J. ; Lim, J. K. ; Moon, D. H. ; Nam, S. K. ; Oh, J. K. ; Park, W. J. ; Rhee, J. T. ; Ryu, M. S. ; Shim, H. H. ; Sim, K. S. / Beam test results of CMS RPCs at high eta region under high-radiation environment. In: Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 2004 ; Vol. 533, No. 1-2. pp. 37-41.

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abstract = "The Compact Muon Solenoid (CMS) forward resistivity plate chambers (RPCs) at the high eta region must be operated in presence of a radiation-induced rate as high as 1 kHz/cm2. It is still unknown if the RPCs coated with linseed oil can be operated under such a high-radiation environment over the lifetime of CMS. Non-oiled RPCs may be one of the options since phenolic or melamine-coated bakelite is chemically stabler than linseed oil. We have constructed oiled and non-oiled RPCs at the high eta region of CMS using phenolic bakelite and tested them in the Gamma Irradiation Facility at CERN. While both RPCs show the same characteristics in the efficiency and the strip multiplicity, the non-oiled RPC generates an intrinsic noise rate of 50 Hz/cm2, compared to only 5 Hz/cm2 for the oiled RPC, both at 10.0kV which is about 100 V above the 95% knee of the efficiency curve.",

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AU - Hong, S. J.

AU - Kang, D. H.

AU - Kang, T. I.

AU - Kim, T. J.

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AU - Lee, H. W.

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AB - The Compact Muon Solenoid (CMS) forward resistivity plate chambers (RPCs) at the high eta region must be operated in presence of a radiation-induced rate as high as 1 kHz/cm2. It is still unknown if the RPCs coated with linseed oil can be operated under such a high-radiation environment over the lifetime of CMS. Non-oiled RPCs may be one of the options since phenolic or melamine-coated bakelite is chemically stabler than linseed oil. We have constructed oiled and non-oiled RPCs at the high eta region of CMS using phenolic bakelite and tested them in the Gamma Irradiation Facility at CERN. While both RPCs show the same characteristics in the efficiency and the strip multiplicity, the non-oiled RPC generates an intrinsic noise rate of 50 Hz/cm2, compared to only 5 Hz/cm2 for the oiled RPC, both at 10.0kV which is about 100 V above the 95% knee of the efficiency curve.

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10.1016/j.nima.2004.06.125