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Space-radiation-induced Photon Luminescence of the MoonWe report on the results of a study of the photon luminescence of the Moon induced by Galactic Cosmic Rays (GCRs) and space radiation from the Sun, using the Monte Carlo program FLUKA. The model of the lunar surface is taken to be the chemical composition of soils found at various landing sites during the Apollo and Luna programs, averaged over all such sites to define a generic regolith for the present analysis. This then becomes the target that is bombarded by Galactic Cosmic Rays (GCRs) and Solar Energetic Particles (SEPs) above 1 keV in FLUKA to determine the photon fluence albedo produced by the Moon's surface when there is no sunlight and Earthshine. This is to be distinguished from the gamma-ray spectrum produced by the radioactive decay of radiogenic constituents lying in the surface and interior of the Moon. From the photon fluence we derive the spectrum which can be utilized to examine existing lunar spectral data and to design orbiting instrumentation for measuring various components of the space-radiation-induced photon luminescence present on the Moon.
Document ID
20080013172
Acquisition Source
Johnson Space Center
Document Type
Conference Paper
Authors
Wilson, Thomas
(NASA Johnson Space Center Houston, TX, United States)
Lee, Kerry
(Lockheed Martin Mission Services Co. Houston,TX, United States)
Date Acquired
August 24, 2013
Publication Date
January 1, 2008
Subject Category
Space Radiation
Meeting Information
Meeting: 37th COSPAR Scientific Assembly
Location: Montreal
Country: Canada
Start Date: July 13, 2008
End Date: July 20, 2008
Distribution Limits
Public
Copyright
Other

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