p/π+ response of single layer THGEM detector in Ar+3% iC4H10

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

doi:10.1088/1674-1137/39/9/096002

Chinese Physics C> 2015, Vol. 39> Issue(9) : 096002 DOI: 10.1088/1674-1137/39/9/096002

p/π⁺ response of single layer THGEM detector in Ar+3% iC₄H₁₀

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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.

References

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LIU Hong-Bang, LIU Qian, CHEN Shi et al. JINST, 2012, 7: C06001[2] Chechik R, Cortesi M, Breskin A. SNIC Symposium, Stanford, California, 3-6 April 2006[3] PANG Hong-Chao, LIU Hong-Bang, CHEN Shi et al. Chin. Phys. Lett., 2012, 29(1): 012901[4] Peskov V, Cortesi M, Chechik R et al. JINST, 2010，5: P11004[5] The International Linear Collider Technical Design Report, 2013[6] Arazi L, Azevedo C. D. R, Breskin A et al. Nucl. Instrum. Methods A, 2013, 732: 199[7] Bressler S, Arazi L, Natal da Luz H et al. JINST, 2013, 8: P07017[8] ZHANG Ai-Wu, LU Jun-Guang YU Bo-Xiang et al. Nucl. Instrum. Methods A, 2013, 722: 43-48[9] LIU Hong-Bang, ZHENG Yang-Heng, XIE Yi-Gang et al. Nucl. Instrum. Methods A, 2011, 659: 237-241[10] ZHOU Xiao-Kang, LIU Qian, CHEN Shi et al. Chin. Phys. Lett., 2014, 31(3): 032901[11] XIE Yi-Gang, CHEN Chang, WANG Man et al. Particle Detectors and Data Acquisition. Beijing: Science Press, 2003. 7 (in Chinese)

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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 and ZHENG Yang-Heng. p/π⁺ response of single layer THGEM detector in Ar+3% iC₄H₁₀[J]. Chinese Physics C, 2015, 39(9): 096002. doi: 10.1088/1674-1137/39/9/096002

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Received: 2014-11-25
Revised: 2015-04-14

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沈阳化工大学材料科学与工程学院沈阳 110142

p/π⁺ response of single layer THGEM detector in Ar+3% iC₄H₁₀

Corresponding author: LIU Hong-Bang,

Received Date: 2014-11-25
Accepted Date: 2015-04-14
Available Online: 2015-09-05

Abstract: 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.