Model for Cumulative Solar Heavy Ion Energy and Linear Energy Transfer Spectra
Model for Cumulative Solar Heavy Ion Energy and Linear Energy Transfer Spectra
复制标题
累积太阳能重离子能量和线性能量传输谱模型
DOI：
10.1109/tns.2007.910850
复制
发表时间：
2007
影响因子：
1.8
通讯作者：
R. Mewaldt
中科院分区：
文献类型：
--
作者：
M. Xapsos;Craig A. Stauffer;T. Jordan;J. Barth;R. Mewaldt
建立了用于航天器设计的太阳累积重离子能量和LET谱的概率模型。光谱作为置信度、太阳活动极大期任务周期和屏蔽厚度的函数给出。结果表明，在太阳活动极大期，长期太阳重离子通量超过了银河系宇宙射线通量。因此，在单事件效应率计算和空间任务规划中应考虑到太阳重离子的累积影响。
A probabilistic model of cumulative solar heavy ion energy and LET spectra is developed for spacecraft design applications. Spectra are given as a function of confidence level, mission time period during solar maximum and shielding thickness. It is shown that long-term solar heavy ion fluxes exceed galactic cosmic ray fluxes during solar maximum for shielding levels of interest. Cumulative solar heavy ion fluences should therefore be accounted for in single event effects rate calculations and in the planning of space missions.