Correction and verification of HL-2A Tokamak Bonner sphere spectrometer in monoenergetic neutron fields from 100 keV to 5 MeV  

作　　者：Bo-Wen Zheng Chun-Yu Jiang Zi-Hao Liu Yin-Hai Pan Xian-Ying Song Shi-Biao Tang Ze-Jie Yin 

机构地区：[1]State Key Laboratory of Particle Detection and Electronics,University of Science and Technology of China,Hefei 230026,China [2]Department of Modern Physics,University of Science and Technology of China,Hefei 230026,China [3]Southwestern Institute of Physics,Chengdu 610041,China

出　　处：《Nuclear Science and Techniques》2019年第11期72-82,共11页核技术（英文）

基　　金：supported by the National Natural Science Foundation of China(Nos.11375195 and 11575184)

摘　　要：A real-time Bonner sphere spectrometer(BSS)has been developed for spectral neutron measurements with the HL-2A Tokamak.To correct and verify the accuracy of the neutron spectrum from the BSS,the BSS system was calibrated using monoenergetic neutron beams in the energy range of 100 keV–5 MeV.The response function of the BSS was corrected based on the calibration results,and the corrected BSS system was verified by unfolding monoenergetic neutron spectra.Fusion neutron spectra on the HL-2A have been obtained from the calibrated BSS system for the first time.A real-time Bonner sphere spectrometer(BSS)has been developed for spectral neutron measurements with the HL-2 A Tokamak. To correct and verify the accuracy of the neutron spectrum from the BSS, the BSS system was calibrated using monoenergetic neutron beams in the energy range of 100 keV–5 MeV. The response function of the BSS was corrected based on the calibration results, and the corrected BSS system was verified by unfolding monoenergetic neutron spectra. Fusion neutron spectra on the HL-2 A have been obtained from the calibrated BSS system for the first time.

关 键 词：Bonner SPHERE SPECTROMETER Calibration Response function NEUTRON SPECTROMETRY 

分 类 号：O57[理学—粒子物理与原子核物理]