Production rates of cosmogenic nuclei on the lunar surface

CORC > 紫金山天文台 > 中国科学院紫金山天文台 > 暗物质和空间天文实验室

	Production rates of cosmogenic nuclei on the lunar surface
	Dong Tie-Kuang1 ; Yun Su-Jun 2; Ma Tao1 ; Chang Jin1 ; Dong Wu-Dong 3; Zhang Xiao-Ping 3,4; Li Guo-Long 4; Ren Zhong-Zhou 4,5
刊名	CHINESE PHYSICS C
	2014-07-01
卷号	38 期号:7 页码:0
关键词	cosmogenic nuclei Geant4 spallation reaction
ISSN号	1674-1137
英文摘要	A physical model for Geant4-based simulation of the galactic cosmic ray (GCR) particles' interaction with the lunar surface matter has been developed to investigate the production rates of cosmogenic nuclei. In this model the GCRs, mainly very high energy protons and alpha particles, bombard the surface of the Moon and produce many secondary particles, such as protons and neutrons: The energies of protons and neutrons at different depths are recorded and saved as ROOT files, and the analytical expressions for the differential proton and neutron fluxes are obtained through the best-fit procedure using ROOT software. To test the validity of this model, we calculate the production rates of the long-lived nuclei Be-10 and Al-26 in the Apollo 15 long drill core by combining the above differential fluxes and the newly evaluated spoliation reaction cross sections. Our numerical results show that the theoretical production rates agree quite well with the measured data, which means that this model works well. Therefore, it can be expected that this model can be used to investigate the cosmogenic nuclei in future lunar samples returned by the Chinese lunar exploration program and can be extended to study other objects, such as meteorites and the Earth's atmosphere.
WOS标题词	Science & Technology ; Physical Sciences
类目[WOS]	Physics, Nuclear ; Physics, Particles & Fields
研究领域[WOS]	Physics
关键词[WOS]	SOLAR-SYSTEM ; MONTE-CARLO ; SIMULATION ; METEORITES ; NUCLIDES ; RECORDS ; AL-26
收录类别	SCI
语种	英语
WOS记录号	WOS:000339228400012
公开日期	2014-11-20
内容类型	期刊论文
源URL	[http://libir.pmo.ac.cn/handle/332002/10555]
专题	紫金山天文台_暗物质和空间天文实验室
作者单位	1.Chinese Acad Sci, Purple Mt Observ, Key Lab Dark Matter & Space Astron, Nanjing 210008, Jiangsu, Peoples R China 2.Nanjing XiaoZhuang Univ, Nanjing 211171, Jiangsu, Peoples R China 3.Macau Univ Sci & Technol, Space Sci Inst, Taipa, Macau, Peoples R China 4.Nanjing Univ, Dept Phys, Nanjing 210008, Jiangsu, Peoples R China 5.Natl Lab Heavy Ion Accelerator, Ctr Theoret Nucl Phys, Lanzhou 730000, Peoples R China
推荐引用方式 GB/T 7714	Dong Tie-Kuang,Yun Su-Jun,Ma Tao,et al. Production rates of cosmogenic nuclei on the lunar surface[J]. CHINESE PHYSICS C,2014,38(7):0.
APA	Dong Tie-Kuang.,Yun Su-Jun.,Ma Tao.,Chang Jin.,Dong Wu-Dong.,...&Ren Zhong-Zhou.(2014).Production rates of cosmogenic nuclei on the lunar surface.CHINESE PHYSICS C,38(7),0.
MLA	Dong Tie-Kuang,et al."Production rates of cosmogenic nuclei on the lunar surface".CHINESE PHYSICS C 38.7(2014):0.