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 | |
| Publication status | Published - 2004 Nov 1 |
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Keywords
- CMS
- LHC
- Melamine
- Non-oiled RPC
- Oiled RPC
- Phenolic
ASJC Scopus subject areas
- Instrumentation
- Nuclear and High Energy Physics
Cite this
Beam test results of CMS RPCs at high eta region under high-radiation environment. / Park, Sung Keun; Ahn, S. H.; Bahk, S. Y.; Hong, Byungsik; 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 › Article
}
TY - JOUR
T1 - Beam test results of CMS RPCs at high eta region under high-radiation environment
AU - Park, Sung Keun
AU - Ahn, S. H.
AU - Bahk, S. Y.
AU - Hong, Byungsik
AU - Hong, S. J.
AU - Kang, D. H.
AU - Kang, T. I.
AU - Kim, T. J.
AU - Kim, Y. J.
AU - Kim, Y. U.
AU - Koo, D. G.
AU - Lee, H. W.
AU - Lee, K. S.
AU - Lee, S. J.
AU - Lim, J. K.
AU - Moon, D. H.
AU - Nam, S. K.
AU - Oh, J. K.
AU - Park, W. J.
AU - Rhee, J. T.
AU - Ryu, M. S.
AU - Shim, H. H.
AU - Sim, K. S.
PY - 2004/11/1
Y1 - 2004/11/1
N2 - 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.
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.
KW - CMS
KW - LHC
KW - Melamine
KW - Non-oiled RPC
KW - Oiled RPC
KW - Phenolic
UR - http://www.scopus.com/inward/record.url?scp=7044286539&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=7044286539&partnerID=8YFLogxK
U2 - 10.1016/j.nima.2004.06.125
DO - 10.1016/j.nima.2004.06.125
M3 - Article
VL - 533
SP - 37
EP - 41
JO - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
JF - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
SN - 0168-9002
IS - 1-2
ER -