The geometric factor of high energy protons detector on FY-3 satellite

	The geometric factor of high energy protons detector on FY-3 satellite
	Zhang ShenYi; Zhang XianGuo; Wang ChuiQin; Shen GuoHong; Jin Tao; Zhang BinQuan; Sun YueQiang; Zhu GuangWu; Liang JinBao; Zhang XiaoXin
刊名	SCIENCE CHINA-EARTH SCIENCES
	2014
卷号	57 期号:10 页码:2558-2566
关键词	geometrical factor response function particle radiation space detection FY-3
ISSN号	1674-7313
通讯作者	Zhang, SY (reprint author), Chinese Acad Sci, Ctr Space Sci & Appl Res, Beijing 100190, Peoples R China.
英文摘要	Geometric factor is the key parameter for inversion of particle spectrum in space particle detection. Traditional geometric factor is obtained through the method of numerical calculation with the actual structure of the detector as the input condition. The degree of accuracy for data inversion is reduced since traditional geometric factor fails to take into account the physical process of interaction between the particle and substance as well as the influence of factors such as the particle interference between different energy channels on the measurement result. Here we propose an improved geometrical factor calculation method, the concept of which is to conduct actual structural modelling of the detector in the GEANT4 program, consider the process of interaction between the particle and substance, obtain the response function of the detector to particles of different energy channels through the method of Monte Carlo simulation, calculate the influence of contaminated particle on the geometrical factor, and finally get the geometrical factors for different energy channels of the detector. The imrpoved geometrical factor obtained through the method has carried out inversion for the data of high energy protons detector on China's FY-3 satellite, the energy spectrum after which is more in line with the power law distribution recognized by space physics. The comparison with the measured result of POES satellite indicates that the FY-3 satellite data are in good accordance with the satellite data, which shows the method may effectively improve the quality of data inversion.
收录类别	SCI ; EI
语种	英语
内容类型	期刊论文
源URL	[http://ir.nssc.ac.cn/handle/122/4382]
专题	国家空间科学中心_空间环境部
推荐引用方式 GB/T 7714	Zhang ShenYi,Zhang XianGuo,Wang ChuiQin,et al. The geometric factor of high energy protons detector on FY-3 satellite[J]. SCIENCE CHINA-EARTH SCIENCES,2014,57(10):2558-2566.
APA	Zhang ShenYi.,Zhang XianGuo.,Wang ChuiQin.,Shen GuoHong.,Jin Tao.,...&Han Ying.(2014).The geometric factor of high energy protons detector on FY-3 satellite.SCIENCE CHINA-EARTH SCIENCES,57(10),2558-2566.
MLA	Zhang ShenYi,et al."The geometric factor of high energy protons detector on FY-3 satellite".SCIENCE CHINA-EARTH SCIENCES 57.10(2014):2558-2566.