Numerical estimation of lunar X-ray emission for X-ray spectrometer onboard SELENE

被引:0
作者
Kazunori Ogawa
Tatsuaki Okada
Kei Shirai
Manabu Kato
机构
[1] Japan Aerospace Exploration Agency,Department of Planetary Science, Instutute of Space and Astronautical Science
[2] Tokyo Institute of Technology,Department of Earth and Planetary Sciences
来源
Earth, Planets and Space | 2008年 / 60卷
关键词
Lunar X-ray; numerical simulation; X-ray spectrometer; XRS; SELENE;
D O I
暂无
中图分类号
学科分类号
摘要
We conducted a numerical estimation of lunar X-ray spectra, which is applicable for lunar X-ray fluorescence observations using an X-ray spectrometer (XRS) onboard the SELENE orbiter, with an improved simulation model. We investigated the integration times of measurements for six elements (Mg, Al, Si, Ca, Ti, and Fe) to achieve signal-to-background ratio of over 10 under various solar conditions. The results of these calculations indicate that expected along-the-track spatial resolutions of a single orbital path for Mg, Al and Si will be <90 km and 20 km under normal and active Sun conditions, respectively. Ca, Ti and Fe will be also detectable with a spatial resolution of 20 km during the periods active solar flares over M1 class happen to occur.
引用
收藏
页码:283 / 292
页数:9
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