p/π+ response of single layer THGEM detector in Ar+3% iC4H10Supported by National Natural Science Foundation of China (11265003, U1431109, 11205240) and State Key Laboratory of Particle Detection and Electronics

In this work, we study the response of a single layer Thick Gaseous Electron Multiplier (THGEM) detector to p/π+ at the E3 line of the Beijing Test Beam Facility. The THGEM detector drift gap used in this study is 4 mm, and the gain of the detector operated in Ar+3% iC4H10 is about 2000. p/π+ partic...

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Bibliographic Details
Published in:Chinese physics C 2015-09, Vol.39 (9)
Main Authors: Hong, Dao-Jin, Yu, Bo-Xiang, Liu, Hong-Bang, He, Xiao-Rong, An, Guang-Peng, Chen, Hai-Tao, Chen, Shi, Hu, Tao, Li, Jia-Cai, Liu, Qian, Niu, Shun-Li, Ruan, Xiang-Dong, Xie, Yi-Gang, Zhang, Xuan, Zheng, Yang-Heng
Format: Article
Language:English
Subjects:
CEPC
detection efficiency
DHCAL
p
π
THGEM
Online Access:Get full text
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Summary:In this work, we study the response of a single layer Thick Gaseous Electron Multiplier (THGEM) detector to p/π+ at the E3 line of the Beijing Test Beam Facility. The THGEM detector drift gap used in this study is 4 mm, and the gain of the detector operated in Ar+3% iC4H10 is about 2000. p/π+ particles at momenta between 500 MeV/c and 1000 MeV/c are distinguished by a Time Of Flight system. Our results show that at the measured momenta, detection efficiencies for p are from 93% to 99%, and for π+ in the range of 82%-88%. Meanwhile, simple Geant4 simulations also have been done, and are consistent with the amplitude spectra of the beam test results. We preliminarily study the feasibility of the THGEM detector as a sampling element for a Digital Hadronic Calorimeter (DHCAL), which may provide support for the possible application of a THGEM detector in the Circular Electron Positron Collider (CEPC) HCAL.
ISSN:1674-1137
DOI:10.1088/1674-1137/39/9/096002