Journal
EARTH PLANETS AND SPACE
Volume 60, Issue 4, Pages 277-281Publisher
SPRINGEROPEN
DOI: 10.1186/BF03352792
Keywords
X-ray fluorescent spectrometry; global mapping; Moon; charge coupled device
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The x-ray fluorescence spectrometer (XRS) on board Japanese lunar polar orbiter SELENE (Kaguya) will provide global distribution of major elemental composition on the lunar surface in energy range of characteristic K-a x-ray line emission for Mg, Al, Si, Ca, Ti, and Fe. These measurements will contribute to research of lunar origin and its evolution. The XRS shows a good energy resolution within 200 eV at 5.9 keV relying on charge coupled device (CCD) as photon energy dispersive detector. Total collective area of 100 cm(2) for main detector facing the lunar surface is composed of 16 CCD chips. Instrumentation of the XRS and its performance evaluated in laboratory are presented.
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