Journal of Radiation Research and Radiation Processing ›› 2020, Vol. 38 ›› Issue (5): 67-72.doi: 10.11889/j.1000-3436.2020.rrj.38.050702


Experimental study of silicon carbide neutron detectors

TANG Bin1,2,CAI Jun1(),HUANG Wenbo1,LIANG Chaofei1,2,LI Changyuan1,2,LI Shibin1,2   

  1. 1.Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China
    2.University of Chinese Academy of Sciences, Beijing 100049, China
  • Received:2020-04-30 Revised:2020-06-19 Accepted:2020-06-19 Online:2020-10-20 Published:2020-10-19
  • Contact: CAI Jun
  • About author:TANG Bin (male) was born in 1992, and obtained his bachelor’s degree from University of South China in 2016. Now he is a graduate student, majoring in radiation detection technology
  • Supported by:
    Strategic Priority Research Program of Chinese Academy of Sciences(XDA02050100)


Silicon carbide (SiC) neutron detector is suitable for monitoring in elevated temperature and harsh radiation environment owing to its wide band gap. An experimental test system of SiC neutron detector was established using standard radioactive sources, and the responses of SiC neutron detector irradiated by 252Cf and 60Co standard sources were investigated, respectively. It was found that the SiC neutron detector could work at a low bias voltage, the R2 value of the linear fitting between the counting rate and the incident neutron flux of the detector is 0.999 8 under the 252Cf source irradiation, which showed a very good linear relationship. In addition, the count of the SiC neutron detector under the 60Co source irradiation was observed mainly in the low-energy area, which could effectively distinguish the effect of γ-ray by setting the discrimination threshold.

Key words: Silicon carbide, Neutron detector, Detection efficiency

CLC Number: 

  • TL816+.3