AbstractThe X-ray spectrometer (XRS) on the SELENE (SELenological and ENgineering Explorer) spacecraft, XRS, will observe fluorescent X-rays from the lunar surface. The energy of the fluorescent X-ray depends on the elements of which the lunar soil consists, therefore we can determine elemental composition of the upper most lunar surface. The XRS consists of three components: XRF-A, SOL-B, and SOL-C. XRF-A is the main sensor to observe X-rays from the lunar surface. SOL-B is direct monitor of Solar X-ray using Si-PIN photodiode. SOL-C is another Solar X-ray monitor but observes the X-rays from the standard sample attached on the base plate. This enables us to analyze by a comparative method similar to typical laboratory XRF methods. XRF-A and SOL-C adopt charge coupled device as an X-ray detector which depletion layer is deep enough to detect X-rays. The X-ray spectra were obtained by the flight model of XRS components, and all components has been worked well to analyze fluorescent X-rays. Currently, development of the hardware and software of the XRS has been finished and we are preparing for system integration test for the launch.


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    Titel :

    Current status of X-ray spectrometer development in the SELENE project


    Beteiligte:
    Yamamoto, Y. (Autor:in) / Okada, T. (Autor:in) / Shiraishi, H. (Autor:in) / Shirai, K. (Autor:in) / Arai, T. (Autor:in) / Ogawa, K. (Autor:in) / Hosono, K. (Autor:in) / Arakawa, M. (Autor:in) / Kato, M. (Autor:in)

    Erschienen in:

    Advances in Space Research ; 42 , 2 ; 305-309


    Erscheinungsdatum :

    2007-04-14


    Format / Umfang :

    5 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch





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