CE-3有效载荷APXS可靠性预计及评估  

The Reliability Prediction and Assessment of Chang'E-3 Alpha Particle X-ray Spectrometer

作　　者：高旻[1] 王焕玉[1] 张承模[1] 崔兴柱[1] 梁晓华[1] 彭文溪[1] 

机构地区：[1]中国科学院高能物理研究所粒子天体物理重点实验室,北京100049

出　　处：《核电子学与探测技术》2014年第6期754-757,共4页Nuclear Electronics & Detection Technology

摘　　要：粒子激发X射线谱仪(APXS)是以元素成分鉴别和定量分析为目标的CE-3巡视器有效载荷。该工作针对APXS电子学系统建立了可靠性模型,并进行了可靠性预计。通过对APXS可靠性预计计算的可靠度与给定的可靠度进行对比,发现设计中的薄弱环节。对APXS电子学系统进行老化试验,用阿伦尼乌斯(ARRHENISUS)反应模型获得了工作温度下的寿命因子,利用贝叶斯法点估计和区间估计对试验的结果进行了可靠性评估,并对影响结果的主要因素进行讨论,提出APXS研制阶段的各项可靠性要求。This paper introduces the reliability prediction of Chang＇E-3 Alpha Particle X-ray Spectrometer.The payload is aimed to identify elements of lunar surface,and it is capable to determine the abundances of the elements.Weakness in the design could be found by calculating the reliability of the APXS reliability prediction reliability of a given comparison.APXS electronics systems carry out aging tests.The life factor of operating temperature could be obtained by Arrhenius reaction model.And then the reliability prediction of the results could be assessed through Bayesian point estimation and Bayesian internal estimation method.The main factors affecting the results were discussed.The reliability requirements of APXS under the development phase are proposed.

关 键 词：嫦娥三号卫星 粒子X射线谱仪 可靠性预计 可靠性评估 

分 类 号：TL816.1[核科学技术—核技术及应用]