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...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.展开更多
基金Supported by National Natural Science Foundation of China(11265003,U1431109,11205240)State Key Laboratory of Particle Detection and Electronics
文摘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.
