摘要
Neutron radiation experiments of optocouplers at back-streaming white neutrons(back-n)in China Spallation Neutron Source(CSNS)are presented.The displacement damages induced by neutron radiation are analyzed.The performance degradations of two types of optocouplers are compared.The degradations of current transfer ratio(CTR)are analyzed,and the mechanisms induced by radiation are also demonstrated.With the increase of the accumulated fluence,the CTR is degrading linearly with neutron fluence.The radiation hardening of optocouplers can be improved when the forward current is increased.Other parameters related to CTR degradation of optocouplers are also analyzed.
Neutron radiation experiments of optocouplers at back-streaming white neutrons(back-n) in China Spallation Neutron Source(CSNS) are presented. The displacement damages induced by neutron radiation are analyzed. The performance degradations of two types of optocouplers are compared. The degradations of current transfer ratio(CTR) are analyzed,and the mechanisms induced by radiation are also demonstrated. With the increase of the accumulated fluence, the CTR is degrading linearly with neutron fluence. The radiation hardening of optocouplers can be improved when the forward current is increased. Other parameters related to CTR degradation of optocouplers are also analyzed.
作者
徐瑞
王祖军
薛院院
宁浩
刘敏波
郭晓强
姚志斌
盛江坤
马武英
董观涛
Rui Xu;Zu-Jun Wang;Yuan-Yuan Xue;Hao Ning;Min-Bo Liu;Xiao-Qiang Guo;Zhi-Bin Yao;Jiang-Kun Sheng;Wu-Ying Ma;Guan-Tao Dong(School of Materials Science and Engineering,Xiangtan University,Xiangtan 411105,China;State Key Laboratory of Intense Pulsed Irradiation Simulation and Effect,Northwest Institute of Nuclear Technology,Xi'an 710024,China)
基金
Project supported by the National Natural Science Foundation of China(Grant Nos.11875223,11805155,and 11690043)
the Chinese Academy of Sciences Strategic Pilot Science and Technology Project(Grant No.XDA15015000)
the Innovation Foundation of Radiation Application,China(Grant No.KFZC2018040201)
the Foundation of State Key Laboratory of China(Grant Nos.SKLIPR1803 and 1903Z)
