Nuclear Science and Techniques

《核技术》(英文版) ISSN 1001-8042 CN 31-1559/TL     2019 Impact factor 1.556

Nuclear Science and Techniques ›› 2019, Vol. 30 ›› Issue (5): 76 doi: 10.1007/s41365-019-0601-7


Development of a scintillation detector for real-time measurement of space proton effective dose

Shou-Jie Zhang1,2 • Xin-Biao Jiang1,2 • Da Li1,2 • Xiao-Ren Yu1,2 • Liang-Liang Miao1,2 • Xiao-Jing Song1,2,3 • Yan Ma1,2   

  1. 1 Northwest Institute of Nuclear Technology, Xi’an 710024, China
    2 State Key Laboratory of Intense Pulsed Radiation Simulation and Effect, Xi’an 710024, China
    3 Xi’an Jiaotong University, Xi’an 710049, China
  • Received:2018-07-23 Revised:2018-12-28 Accepted:2019-01-03
  • Contact: Shou-Jie Zhang
  • Supported by:
    This work was supported by the National Natural Science Foundation of China (No. 11305127), and the State Key Lab of Intense Pulsed Radiation Simulation and Effect Basic Research Foundation (No. SKLIPR1216).
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Shou-Jie Zhang, Xin-Biao Jiang, Da Li, Xiao-Ren Yu, Liang-Liang Miao, Xiao-Jing Song, Yan Ma. Development of a scintillation detector for real-time measurement of space proton effective dose.Nuclear Science and Techniques, 2019, 30(5): 76     doi: 10.1007/s41365-019-0601-7

Abstract: In this study, a scintillation detector was developed to measure the space proton effective dose for astronauts based on the proton effective dose conversion coefficients provided by International Commission on Radiological Protection Report No. 116. In the Monte Carlo N-Particle Transport Code X (version 2.6.0) simulation process, by modulating the depth and solid angle of truncated conical holes in an iron shell from lower-energy protons to higher-energy protons, the energy deposited in the scintillator by isotropic protons was nearly proportional to the corresponding effective dose, with a maximum relative deviation of 13.28% at thirteen energy points in the energy range of 10–400 MeV. Therefore, the detector can monitor proton effective dose indirectly in real time by measuring the deposited energy. We calibrated the photoelectric conversion efficiency of the detector at the cobalt source, tested the response of the detector in the energy range of 30–100 MeV in unidirectional proton field, and validated the simulation with the experimental results.

Key words: Effective dose, Space proton, Scintillation detector, ICRP Report No. 116, Deposited energy