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题名: Data Analysis of Chang'E-1 Gamma-Ray Spectrometer and Global Distribution of U, K, and Th Elemental Abundances
作者: Zou Yongliao1; Zhang Liyan1; Liu Jianzhong1; Mu Lingli1; Ren Xin1; Zhang Guangliang1; Chang Jin(常进)2; Yan Jun1; Zhang Nan2; Zhang Hongbo1; Lu Chang1; Liu Jianjun1; Zuo Wei1; Su Yan1; Wen Weibin1; Bian Wei1; Wang Min(王旻)1; Xu Chun1; Li Chunlai1; Ouyang Ziyuan1
刊名: ACTA GEOLOGICA SINICA-ENGLISH EDITION
出版日期: 2011-12-01
卷号: 85, 期号:6, 页码:1299-1309
关键词: Chang'E-1 ; payloads ; gamma rays ; elemental abundances
DOI: 10.1111/j.1755-6724.2011.00589.x
文章类型: Article
英文摘要: Gamma-ray spectrometer (GRS) is one of the main payloads on the Chang'E-1 (CE-1) lunar probe, mainly aimed to detect the elemental abundances and distributions on the lunar surface. At 03:58 on 28 November 2007, it performed the first observation of the lunar gamma rays. As of 24 October 2008, 2105 h of effective gamma rays spectra had been acquired by CE-1 GRS, which covers the whole surface of the moon. This paper mainly describes the data processing procedures and methods of deriving the elemental abundances by using the CE-1 GRS time series corrected spectra: first, to bin data into pixels for mapping; then, to perform a background deduction of the cumulative spectra and obtain a peak area of the elements; and finally, to use the elemental abundances inversion model to produce the elemental abundances. Based on these processing methods, the global abundance maps of U, K, and Th at a 5 degrees x 5 degrees equal-area pixel are acquired by CE-1 GRS data. The paper gives a preliminary analysis of the uncertainties of the elemental abundances.
WOS标题词: Science & Technology ; Physical Sciences
类目[WOS]: Geosciences, Multidisciplinary
研究领域[WOS]: Geology
关键词[WOS]: LUNAR-SURFACE ; MOON
收录类别: SCI
语种: 英语
WOS记录号: WOS:000298536400008
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内容类型: 期刊论文
URI标识: http://libir.pmo.ac.cn/handle/332002/15971
Appears in Collections:暗物质和空间天文实验室_期刊论文

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作者单位: 1.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China
2.Chinese Acad Sci, Purple Mt Observ, Nanjing 210008, Peoples R China
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