Nuclear Techniques ›› 2014, Vol. 37 ›› Issue (10): 100522-100522.doi: 10.11889/j.0253-3219.2014.hjs.37.100522


Development of photo-neutron facility driven by electron LINAC

WANG Hongwei1,2,3 CHEN Jingen1,2,3 CAI Xiangzhou1,2,3 LIN Zuokang1,2 MA Yugang1,2,3 ZHANG Guilin1,2 LI Chen1,2 FANG Deqing1,2,3 ZHANG Song1,2 ZHANG Guoqiang1,2 CAO Xiguang1,2 ZHONG Chen1,2 LU Fei1,2 CAO Yun1,2 HU Ruirong1,2 JIN Jiang1,2 HU Jianhui1,2 CHEN Weiliang1,2 HUANG Jianping1,2 WANG Naxiu1,2,3 HAN Jianlong1,2 KANG Guoguo1,2 DU Long1,2,3 WANG Yuting1,2,3 ZHU Liang1,2,3 CHANG Le1,2 ZHOU Chensheng1,2,3   

  1. 1(Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Jiading Campus, Shanghai 201800, China) 2(Key Laboratory of Nuclear Radiation and Nuclear Energy Technology, Chinese Academy of Sciences, Shanghai 201800, China) 3(University of Chinese Academy of Sciences, Beijing 100049, China)
  • Received:2014-05-12 Revised:2014-06-05 Online:2014-10-10 Published:2014-10-16

Abstract: Background: Neutron evaluated data were needed by many researches, e.g., the safety traffic of nuclear reactor, design of new generated reactor and treatment of nuclear waste. Purpose: The photo-neutron source driven by 15-MeV electrons LINAC in Thorium molten salt reactor (TMSR) program was designed for Th-U cycle nuclear data measurement. Methods: The photo-neutron source combined with time of flight (TOF) spectra is the most accurate method in neutron energy measurement, which plays a very important role in thermal and resonance neutron cross section measurement. Results: It locats in Jiading campus of Shanghai Institute of Applied Physics (SINAP). In the first phase, a 15-MeV electron LINAC will be manufactured, and then a more high energy about 100-MeV LINAC will be used for the photo-neutron source. Conclusion: The facility (phase 1) will supply the 5-m TOF path and white spectrum neutron with flux ~104 n?s?1?cm?2 and low energy gamma ray ~1 MeV, and it will be used in neutron cross section measurement and gamma irradiation study. This is the first white neutron source facility designed for TMSR nuclear data measurement.

Key words: Photo-neutron source, Th-U cycle, Nuclear data, Time of Flight (TOF), Neutron detector