Study on gamma response function of EJ301 organic liquid scintillator with GEANT4 and FLUKA

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ZHANG Su-Ya-La-Tu, CHEN Zhi-Qiang, HAN Rui, LIU Xing-Quan, LIN Wei-Ping, JIN Zeng-Xue, XI Yin-Yin, LIU Jian-Li and SHI Fu-Dong. Study on gamma response function of EJ301 organic liquid scintillator with GEANT4 and FLUKA[J]. Chinese Physics C, 2013, 37(12): 126003. doi: 10.1088/1674-1137/37/12/126003
ZHANG Su-Ya-La-Tu, CHEN Zhi-Qiang, HAN Rui, LIU Xing-Quan, LIN Wei-Ping, JIN Zeng-Xue, XI Yin-Yin, LIU Jian-Li and SHI Fu-Dong. Study on gamma response function of EJ301 organic liquid scintillator with GEANT4 and FLUKA[J]. Chinese Physics C, 2013, 37(12): 126003.  doi: 10.1088/1674-1137/37/12/126003 shu
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Received: 2013-03-01
Revised: 1900-01-01
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Study on gamma response function of EJ301 organic liquid scintillator with GEANT4 and FLUKA

    Corresponding author: CHEN Zhi-Qiang,

Abstract: 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.

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