Measurements with silicon photomultipliers of dose-rate effects in the radiation damage of plastic scintillator tiles in the CMS hadron endcap calorimeter
Measurements are presented of the reduction of signal output due to radiation damage for two types of plastic scintillator tiles used in the hadron endcap (HE) calorimeter of the CMS detector. The tiles were exposed to particles produced in proton-proton (pp) collisions at the CERN LHC with a cen...
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| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English English English |
| Published: |
Institute of Physics Publishing
2020
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| Subjects: | |
| Online Access: | http://irep.iium.edu.my/82220/1/82220_Measurements%20with%20silicon%20photomultipliers.pdf http://irep.iium.edu.my/82220/2/82220_Measurements%20with%20silicon%20photomultipliers_SCOPUS.pdf http://irep.iium.edu.my/82220/3/82220_Measurements%20with%20silicon%20photomultipliers_WOS.pdf http://irep.iium.edu.my/82220/ https://iopscience.iop.org/article/10.1088/1748-0221/15/06/P06009/pdf |
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| Summary: | Measurements are presented of the reduction of signal output due to radiation damage
for two types of plastic scintillator tiles used in the hadron endcap (HE) calorimeter of the CMS
detector. The tiles were exposed to particles produced in proton-proton (pp) collisions at the CERN
LHC with a center-of-mass energy of 13 TeV, corresponding to a delivered luminosity of 50 fb−1
.
The measurements are based on readout channels of the HE that were instrumented with silicon
photomultipliers, and are derived using data from several sources: a laser calibration system, a
movable radioactive source, as well as hadrons and muons produced in pp collisions. Results from
several irradiation campaigns using 60Co sources are also discussed. The damage is presented as
a function of dose rate. Within the range of these measurements, for a fixed dose the damage
increases with decreasing dose rate. |
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