GCR Corrections of the Lunar Gamma-Ray Spectra

Details GCR Corrections of the Lunar Gamma-Ray Spectra GCR Corrections of the Lunar Gamma-Ray Spectra

Oct 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011epsc.conf.1709z&link_type=abstract

EPSC-DPS Joint Meeting 2011, held 2-7 October 2011 in Nantes, France. http://meetings.copernicus.org/epsc-dps2011, p.1709

Physics

Scientific paper

The gamma-ray emission from the Moon is initiated by the interactions of the Galactic Cosmic Rays (GCRs) with various elements near the lunar surface. In this presentation, we show we analyse the gammaray spectral data acquired during the Chinese Chang'E-1 lunar mission. We focus specifically on removing from the Chang'E-1 observations the time variability inherent in the incident GCR fluxes. This is based on the count rates in the 6.13 MeV oxygen line, since this element tends to be uniformed distributed across the lunar surface and is a good diagnostic of the intrinsic variation in GCR flux. Possible contamination by spacecraft thrusters firings is also discussed.

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