太阳质子通量模型研究

	太阳质子通量模型研究
	李婷婷 ; 师立勤 ; 刘四清
刊名	空间科学学报
	2003
卷号	30 期号:3 页码:205-210
关键词	太阳质子事件质子通量预报模型
ISSN号	0254-6124
其他题名	Research on the Solar Proton Fluence Model
通讯作者	北京8701信箱
中文摘要	太阳质子事件对航天活动构成重要威胁,预测一定时期内太阳质子通量对航天器抗辐射加固设计有重要的指导意义.在第20至23太阳活动周的太阳质子事件数据统计分析的基础上,建立了一个针对E>10 MeV和E>30MeV太阳质子通量的新模型.新模型与目前航天工程中常用的JPL模型相比较,引入了太阳活动性对质子事件发生概率的影响因素,能够评估不同太阳活动水平下的质子通量,其结果更符合质子事件的分布特征.
英文摘要	Solar Proton Event (SPE) has great influence on the human space activities. Establishing prediction model for total fluence of solar protons accumulated during a mission and taking protective measures are of vital significance for the security of the spacecraft and astronauts. Based on a data set of proton events from the last four solar cycles, a new statistical model is designed to predict the proton fluence for space mission analysis. The energy ranges considered are E>10 MeV and E>30 MeV, respectively. Because of the quasi-random nature of the occurrences, and spectra of SPE, solar proton mission fluence must be treated statistically. The purpose of this analysis is to derive the probability of exceeding various proton fluence as a function of proton energy and mission duration. Compared with commonly used JPL model, solar activity levels are taken into account to obtain the occurrence probability of proton events. The new model can access proton fluence in different phase, and is more consistent with the distribution of proton events.
学科主题	空间环境
资助信息	国家重点基础研究发展规划项目,中国科学院知识创新工程
语种	中文
内容类型	期刊论文
源URL	[http://ir.cssar.ac.cn/handle/122/354]
专题	国家空间科学中心_空间环境部
推荐引用方式 GB/T 7714	李婷婷,师立勤,刘四清. 太阳质子通量模型研究[J]. 空间科学学报,2003,30(3):205-210.
APA	李婷婷,师立勤,&刘四清.(2003).太阳质子通量模型研究.空间科学学报,30(3),205-210.
MLA	李婷婷,et al."太阳质子通量模型研究".空间科学学报 30.3(2003):205-210.