Nuclear Engineering and Technology

Korean Nuclear Society (한국원자력학회)
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A field determination method of D-T neutron source yields based on oxygen prompt gamma rays

  • Xiongjie Zhang (Engineering Research Center of Nuclear Technology Application(East China University of Technology), Ministry of Education) ;
  • Bin Tang (Engineering Research Center of Nuclear Technology Application(East China University of Technology), Ministry of Education) ;
  • Geng Nian (Chenghua Monitoring Station of Chengdu Pollution Source Monitoring Center) ;
  • Haitao Wang (Engineering Research Center of Nuclear Technology Application(East China University of Technology), Ministry of Education) ;
  • Lijiao Zhang (Engineering Research Center of Nuclear Technology Application(East China University of Technology), Ministry of Education) ;
  • Yan Zhang (Engineering Research Center of Nuclear Technology Application(East China University of Technology), Ministry of Education) ;
  • Rui Chen (Engineering Research Center of Nuclear Technology Application(East China University of Technology), Ministry of Education) ;
  • Zhifeng Liu (Engineering Research Center of Nuclear Technology Application(East China University of Technology), Ministry of Education) ;
  • Jinhui Qu (Engineering Research Center of Nuclear Technology Application(East China University of Technology), Ministry of Education)
  • Received : 2022.11.25
  • Accepted : 2023.03.09
  • Published : 2023.07.25
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Abstract

A field determination method for small D-T neutron source yield based on the oxygen prompt gamma rays was established. A neutron-gamma transport equation of the determination device was developed. Two yield field determination devices with a thickness of 20 mm and 50 mm were made. The count rates of the oxygen prompt gamma rays were calculated using three energy spectra processing approaches, which were the characteristic peak of 6.13 MeV, the overlapping peak of 6.92 MeV and 7.12 MeV, and the total energy area. The R-square of the calibration curve is better than 94% and the maximum error of the yield test is 5.21%, demonstrating that it is feasible to measure the yield of D-T neutron source by oxygen prompt gamma rays. Additionally, the results meet the requirements for field determination of the conventional D-T neutron source yield.

Keywords

Acknowledgement

The authors would like to acknowledge the support of National Key R&D Program of China(2021YFC2900700); Nuclear Energy Development and Scientific Research Project(20201192-07); The National Natural Science Foundation of China(41704171); Joint Innovation Fund of China National Uranium Co., Ltd. and State Key Laboratory of Nuclear Resources and Environment (No. NRE2021-03). Special thanks to Professor Liu Dan and Yang Linsen from the Institute of Nuclear Technology Application, China Institute of Atomic Energy, for their strong support for the experiment test.

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