Study on gamma response function of E J301 organic liquid scintillator with GEANT4 and FLUKA

The gamma response function is required for energy calibration of EJ301 （5 cm in diameter and 20 cm in height） organic liquid scintillator detector by means of gamma sources. The GEANT4 and FLUKA Monte Carlo simulation packages were used to simulate the response function of the detector for standard...

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Published in中国物理C：英文版 no. 12; pp. 65 - 70
Main Author 张苏雅拉吐 陈志强 韩瑞 刘星泉 R.Wada 林炜平 靳增雪 席印印 刘建立 石福东
Format Journal Article
LanguageEnglish
Published 2013
Subjects
GEANT4
伽玛
响应函数
液体闪烁体
电子能量
能量分辨率
蒙特卡罗仿真
闪烁体探测器
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Summary:The gamma response function is required for energy calibration of EJ301 （5 cm in diameter and 20 cm in height） organic liquid scintillator detector by means of gamma sources. The GEANT4 and FLUKA Monte Carlo simulation packages were used to simulate the response function of the detector for standard 22Na, 60Co, 137Cs gamma sources. The simulated results showed a good agreement with experimental data by incorporating the energy resolution function to simulation codes. The energy resolution and the position of the maximum Compton electron energy were obtained by comparing measured light output distribution with simulated one. The energy resolution of the detector varied from 21.2% to 12.4% for electrons in the energy region from 0.341 MeV to 1.12 MeV. The accurate position of the maximum Compton electron energy was determined at the position 81% of maximum height of Compton edges distribution. In addition, the relation of the electron energy calibration and the effective neutron detection thresholds were described in detail. The present results indicated that both packages were suited for studying the gamma response function of EJ301 detector.
Bibliography:ZHANG Su-Ya-La-Tu, CHEN Zhi-Qiang, HAN Rui, LIU Xing-Ouan,R.Wada, LIN Wei-Ping, JIN Zeng-Xue, XI Yin-Yin, LIU Jian-Li,SHI Fu-Dong（1 Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China ; 2 University of Chinese Academy of Sciences, Beijing 100049, China; 3 Cyclotron Institute, Texas A＆M University, College Station, Texas 77843 ;4 Lanzhou University, Lanzhou 730000, China; 5 College of Nuclear Science and Technology, Harbin Engineering University, Harbin USA 150000. China）
gamma response function, E J301 organic liquid scintillator, energy calibration, energy resolutionfunction, GEANT4, FLUKA, Compton edge
11-5641/O4
The gamma response function is required for energy calibration of EJ301 （5 cm in diameter and 20 cm in height） organic liquid scintillator detector by means of gamma sources. The GEANT4 and FLUKA Monte Carlo simulation packages were used to simulate the response function of the detector for standard 22Na, 60Co, 137Cs gamma sources. The simulated results showed a good agreement with experimental data by incorporating the energy resolution function to simulation codes. The energy resolution and the position of the maximum Compton electron energy were obtained by comparing measured light output distribution with simulated one. The energy resolution of the detector varied from 21.2% to 12.4% for electrons in the energy region from 0.341 MeV to 1.12 MeV. The accurate position of the maximum Compton electron energy was determined at the position 81% of maximum height of Compton edges distribution. In addition, the relation of the electron energy calibration and the effective neutron detection thresholds were described in detail. The present results indicated that both packages were suited for studying the gamma response function of EJ301 detector.
ISSN:1674-1137
0254-3052