CAJ | 학술논문

位移损伤剂量是评估电子元器件在轨发生位移损伤导致性能退化的重要参数。文章首先给出了位移损伤剂量的等效原理和计算方法，即用位移损伤等效注量来表征卫星轨道带电粒子导致的位移损伤剂量；之后分别采用3种不同的太阳质子注量模型，计算了典型大椭圆轨道的位移损伤等效注量，并结合计算结果对不同模型的特点和适用性进行了分析；其后针对4种典型卫星轨道，计算了不同飞行寿命期内的位移损伤等效注量，发现不同轨道的位移损伤剂量有较大差异，并结合空间带电粒子辐射环境分布特点及卫星轨道参数等分析了差异的产生原因；最后，分析不同的太阳质子注量预估方法对位移损伤剂量计算结果的影响，总结了不同轨道、不同飞行寿命情况下卫星经受的带电粒子辐射环境的严酷程度。研究结果可为卫星内部元器件位移损伤效应防护工作提供参考。
위이손상제량시평고전자원기건재궤발생위이손상도치성능퇴화적중요삼수。문장수선급출료위이손상제량적등효원리화계산방법，즉용위이손상등효주량래표정위성궤도대전입자도치적위이손상제량；지후분별채용3충불동적태양질자주량모형，계산료전형대타원궤도적위이손상등효주량，병결합계산결과대불동모형적특점화괄용성진행료분석；기후침대4충전형위성궤도，계산료불동비행수명기내적위이손상등효주량，발현불동궤도적위이손상제량유교대차이，병결합공간대전입자복사배경분포특점급위성궤도삼수등분석료차이적산생원인；최후，분석불동적태양질자주량예고방법대위이손상제량계산결과적영향，총결료불동궤도、불동비행수명정황하위성경수적대전입자복사배경적엄혹정도。연구결과가위위성내부원기건위이손상효응방호공작제공삼고。
Displacement damage dose is a parameter used to quantify the displacement damage effect on electrical and electronic components. The method for calculating the displacement damage equivalent particle fluence is presented, which is used to characterize the displacement damage dose induced by the radiation environment on orbit. The characteristics of three different solar proton fluence models are proposed based on the analysis of results. The displacement damage doses on typical satellite orbits are calculated and the characteristics of the radiation environment relevant displacement damage are analyzed. This paper provides a reference for radiation hardness assurance for space systems.