嫦娥一号携带的γ射线谱仪传回大量能谱数据，对其分析与解谱是一个比较复杂的过程。针对此问题，提出按照月表γ射线来源的物理过程，分为月球表面天然放射元素、中子非弹性散射和中子俘获三部分。用MCNP程序模拟其在GRS中的能谱数据，将模拟结果叠加并与实测谱线对比，结果表明，模拟γ谱线能帮助辨识出实测谱线中的部分关键元素，例如40 K、214 Bi等。
It is a more complex data processing problem of the data ofγ-ray spectrum, which were collected by Chang’E-1 from lunar surface. It is presented that MCNP simulation for theγ spectra, according to three kinds of physical events, such as natural radioactive elements emission, theγ rays induced by inelastic neutron scattering and neutron capture on the lunar surface in this paper. The simulated results were superimposed and compared with the measured spectrum by Chang’E-1. The results show that 40K and 214Bi can be identified from the measured data with our MCNP models.
参考文献
| [1] | 欧阳自远.月球探测的进展与我国月球探测的科学目标[J].贵州工业大学学报(自然科学版),2003(06):1-7,17. |
| [2] | 李泳泉;刘建忠;欧阳自远;李春来;邹永廖.月球表面岩石类型的分布特征：基于Lunar Prospector（LP）伽马射线谱仪探测数据的反演[J].岩石学报,2007(5):1169-1174. |
| [3] | Hasebe N;Yamashita N;Okudaira O;Kobayashi S;Yamamoto H;Ishizaki T;Hirano K;Sakurai K;Miyachi T;Miyajima M.The high precision gamma-ray spectrometer for lunar polar orbiter SELENE[J].Advances in Space Research: The Official Journal of the Committee on Space Research(COSPAR),20082(2):323-330. |
| [4] | 邹永廖;欧阳自远;徐琳;刘建军;胥涛.月球表面的环境特征[J].第四纪研究,2002(6):533-539. |
| [5] | LAWRENCE D J;FELDMAN W C;BARRACLOUGH B L.[J].SCIENCE,1998281(04):1984. |
| [6] | ROBERT C R.The 9th Lunar Planet Science Conference[M].New York:Pergamon Press,1978:2961. |
| [7] | FELDMAN W C;BARRACLOUGH B L;FULLER K R.[J].Nuclear Instruments and Methods in Physics Re-search A,1999422:562. |
| [8] | ADAMS J H;BHATTACHARYA M;LIN Z W.[J].Ad-vances In Space Research,200740:338. |
| [9] | Kobayashi, S.;Hasebe, N.;Shibamura, E.;Okudaira, O.;Kobayashi, M.;Yamashita, N.;Karouji, Y.;Hareyama, M.;Hayatsu, K.;D'Uston, C.;Maurice, S.;Gasnault, O.;Forni, O.;Diez, B.;Reedy, R.C.;Kim, K.J..Determining the absolute abundances of natural radioactive elements on the lunar surface by the kaguya gamma-ray spectrometer[J].Space Science Reviews,20101/4(1/4):193-218. |
| [10] | BIELEFELD M J;REEDY R C;METZGER A E.The 7th Lunar and Planetary Science Conference[M].New York:Pergamon Press,1976:2661. |
| [11] | Ma T;Chang J;Zhang N;Cai MS;Gong YZ;Tang HS;Zhang RJ;Wang NS;Yu M;Mao JP.Gamma-ray detector on board lunar mission Chang'E-1[J].Advances in Space Research: The Official Journal of the Committee on Space Research(COSPAR),20082(2):347-349. |
| [12] | 舒双宝;常进;蔡明生;马涛;邹永廖.月球伽玛射线谱仪的研制及其性能[J].天文学报,2006(2):218-223. |
| [13] | YAMASHITA N;HASEBE N;REEDY R C.[J].Geophysical Research Letter,201037:L10201. |
| [14] | PAUL L;RANDY L;JEFFREY G.[J].Reviews in Min-eralogy & Geochemistry,200660:83. |
| [15] | XU Tao;LI Chunlai.[J].Chinese Journal of Space Science,200121(04):332. |
| [16] | ZOU Yongliao;ZHANG Liyan;LIU Jianzhong;MU Lingli;REN Xin;ZHANG Guangliang;CHANG Jin;YAN Jun;ZHANG Nan;ZHANG Hongbo;L(U) Chang;LIU Jianjun;ZUO Wei;SU Yan;WEN Weibin;BIAN Wei;WANG Min;XU Chun;LI Chunlai;OUYANG Ziyuan.Data Analysis of Chang'E-1 Gamma-Ray Spectrometer and Global Distribution of U, K, and Th Elemental Abundances[J].地质学报（英文版）,2011(06):1299-1309. |
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