Chemical composition of the lunar surface from neutron leakage fluxes
文献类型：期刊论文
| 作者 | Cheng Yu1,2; Dong Tie-Kuang1,2; Dong Wu-Dong2; Ren Zhong-Zhou3,4; Xu Ao-Ao |
| 刊名 | CHINESE PHYSICS C
 |
| 出版日期 | 2011-08-01 |
| 卷号 | 35页码:735-740 |
| 关键词 | neutron leakage flux Geant4 macroscopic absorption cross section |
| ISSN号 | 1674-1137 |
| DOI | 10.1088/1674-1137/35/8/007 |
| 英文摘要 | The neutron leakage fluxes from the lunar surface are calculated by Monte Carlo transport code based on Geant4. The integral fluxes of fast neutrons, epi-thermal neutrons and thermal neutrons are analyzed. Numerical results for 20 kinds of lunar soils and 7 minerals show that the fast neutron fluxes are linearly related to the average atomic mass numbers of the lunar materials used in simulations. Meanwhile, the average atomic mass numbers are strongly modulated by the abundances of iron (Fe) and titanium (Ti), and a linear relationship between the average atomic mass numbers and the abundances of Fe and Ti is found. Furthermore, the results show that the ratios of epi-thermal to thermal fluxes for lunar soils are linearly related to the macroscopic absorption cross sections of lunar materials, and that the macroscopic absorption cross sections monotonically increase with the abundances of Fe and Ti by a simple function. Then we reach the conclusion that the neutron fluxes can provide the information about the Fe and Ti contents. |
| WOS关键词 | PROSPECTOR GAMMA-RAY ; EPITHERMAL NEUTRONS ; MARS ODYSSEY ; MONTE-CARLO ; MOON ; SPECTROMETER ; SIMULATION ; HYDROGEN ; DETECTOR ; MAPS |
| 资助项目 | Science and Technology of Development Fund of Macau[042/2007/A3] |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000293431100007 |
| 出版者 | CHINESE PHYSICAL SOC |
| 资助机构 | Science and Technology of Development Fund of Macau |
| 源URL | [http://119.78.100.186/handle/113462/33473]  |
| 专题 | 中国科学院近代物理研究所 |
| 通讯作者 | Cheng Yu |
| 作者单位 | 1.Macau Univ Sci & Technol, Space Sci Inst, Taipa, Macau, Peoples R China 2.Macau Univ Sci & Technol, Fac Informat Technol, Taipa, Macau, Peoples R China 3.Nanjing Univ, Dept Phys, Nanjing 210008, Peoples R China 4.Natl Lab Heavy Ion Accelerator, Ctr Theoret Nucl Phys, Lanzhou 730000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Cheng Yu,Dong Tie-Kuang,Dong Wu-Dong,et al. Chemical composition of the lunar surface from neutron leakage fluxes[J]. CHINESE PHYSICS C,2011,35:735-740. |
| APA | Cheng Yu,Dong Tie-Kuang,Dong Wu-Dong,Ren Zhong-Zhou,&Xu Ao-Ao.(2011).Chemical composition of the lunar surface from neutron leakage fluxes.CHINESE PHYSICS C,35,735-740. |
| MLA | Cheng Yu,et al."Chemical composition of the lunar surface from neutron leakage fluxes".CHINESE PHYSICS C 35(2011):735-740. |
入库方式： OAI收割
来源：近代物理研究所
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