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Monte Carlo simulation of the property of a scintillation bar in the multi-neutron correlation spectrometer
Authors:SONG Yu-Shou  YE Yan-Lin  GE Yu-Cheng  L Lin-Hui  Faisal Q  JIANG Dong-Xing  HUA Hui  ZHENG Wao  LI Zhi-Huan  LI Xiang-Qing  LOU Jian-Ling  LU Fei  FAN Feng-Ying  CAO Zhong-Xin  LI Qi-Te  XIAO Jun
Institution:School of Physics and State Key Laboratory of Nuclear Physics and Technology,Peking University,Beijing 100871,China
Abstract:To perform a kinematically complete measurement of the dissociation reaction for neutron-rich nuclei, a multi-neutron correlation spectrometer is proposed at Peking University.A Monte Carlo simulation code based on GEANT4 is developed for a single scintillation bar which processes not only the energy deposition but also the light propagation in the scintillator and the light collection and conversion to signal at the end of the bar in a realistic way. The simulating method is described in detail in this paper, and the timing and position resolutions and detector efficiency are studied based on the simulation and compared with the experimental results.A new method of crosstalk rejection has been demonstrated to be important for the design of the whole spectrometer.
Keywords:neutron wall  Monte Carlo simulation  neutron halo
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