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Volume 60 Supplement 4

Special Issue: Lunar Science with the SELENE “Kaguya” Mission-Prelaunch Studies-

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

Earth, Planets and Space volume 60, pages 283–292 (2008)Cite this article

Abstract

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.

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Authors and Affiliations

  1. Department of Planetary Science, Instutute of Space and Astronautical Science, Japan Aerospace Exploration Agency, 3-1-1 Yoshinodai, Sagamihara, Kanagawa, 229-8510, Japan

    Kazunori Ogawa, Tatsuaki Okada, Kei Shirai & Manabu Kato

  2. Department of Earth and Planetary Sciences, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo, 152-8550, Japan

    Kazunori Ogawa

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  1. Kazunori Ogawa
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  2. Tatsuaki Okada
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  3. Kei Shirai
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  4. Manabu Kato
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Correspondence to Kazunori Ogawa.

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Ogawa, K., Okada, T., Shirai, K. et al. Numerical estimation of lunar X-ray emission for X-ray spectrometer onboard SELENE. Earth Planet Sp 60, 283–292 (2008). https://doi.org/10.1186/BF03352793

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  • DOI: https://doi.org/10.1186/BF03352793

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