原子能科学技术2018，Vol.52Issue(6)：1144-1152,9.DOI:10.7538/yzk.2017.youxian.0572
低剂量率辐照损伤增强效应的高温辐照加速试验机理研究
Research on Mechanism of Elevated Temperature Irradiation Accelerated Test for Enhanced Low Dose Rate Sensitivity
摘要
Abstract
A physical model of enhanced low dose rate sensitivity(ELDRS)including temperature field was established,and the relationship among the irradiation tempera-ture,dose rate,total dose and the concentration of radiation induced product was given using the finite element simulation.The effect of process parameters(such as the con-centration and energy level of oxide trap,the concentration hydrogen defect and the pas-sivation energy of interface trap)on the optimum irradiation temperature was analyzed.The results show that the optimum irradiation temperature is the competition result betw een the generation and annealing of irradiation induced product.T he annealing behavior is the main factor to determine the optimum irradiation temperature,so the active energy of oxide trap and passivation energy of interface trap have obvious affection on the optimum temperature.The active energy of oxide trap and passivation energy of interface trap are the main reason for the difference of optimum irradiation temperature of different devices.关键词
低剂量率辐照损伤增强效应/数值仿真/总剂量效应/高温辐照/加速试验Key words
enhanced low dose rate sensitivity/numerical simulation/total ionization dose effect/elevated temperature irradiation/accelerated test分类
数理科学引用本文复制引用
姚志斌,陈伟,何宝平,马武英,盛江坤,刘敏波,王祖军,金军山,张帅..低剂量率辐照损伤增强效应的高温辐照加速试验机理研究[J].原子能科学技术,2018,52(6):1144-1152,9.基金项目
国家自然科学基金资助项目(11235008) （11235008）
