中国物理B ›› 2023, Vol. 32 ›› Issue (2): 20705-020705.doi: 10.1088/1674-1056/aca603
Biao Pei(裴标)1,2,3, Zhixin Tan(谭志新)1,2,†, Yongning He(贺永宁)3,‡, Xiaolong Zhao(赵小龙)3, and Ruirui Fan(樊瑞睿)1,2,4
Biao Pei(裴标)1,2,3, Zhixin Tan(谭志新)1,2,†, Yongning He(贺永宁)3,‡, Xiaolong Zhao(赵小龙)3, and Ruirui Fan(樊瑞睿)1,2,4
摘要: To predict the soft error rate for applications, it is essential to study the energy dependence of the single-event-upset (SEU) cross-section. In this work, we present a direct measurement of the SEU cross-section with the Back-n white neutron source at the China Spallation Neutron Source. The measured cross section is consistent with the soft error data from the manufacturer and the result suggests that the threshold energy of the SEU is about 0.5 MeV, which confirms the statement in Iwashita's report that the threshold energy for neutron soft error is much below that of the (n, α) cross-section of silicon. In addition, an index of the effective neutron energy is suggested to characterize the similarity between a spallation neutron beam and the standard atmospheric neutron environment.
中图分类号: (Environmental effects on instruments (e.g., radiation and pollution effects))