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Record 14 of 2428
Space-radiation-induced Photon Luminescence of the Moon
Author and Affiliation:
Wilson, Thomas(NASA Johnson Space Center, Houston, TX, United States)
Lee, Kerry(Lockheed Martin Mission Services Co., Houston,TX, United States)
Abstract: We 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.
Publication Date: Jan 01, 2008
Document ID:
20080013172
(Acquired Mar 17, 2008)
Subject Category: SPACE RADIATION
Document Type: Conference Paper
Meeting Information: 37th COSPAR Scientific Assembly; 13-20 Jul. 2008; Montreal; Canada
Financial Sponsor: NASA Johnson Space Center; Houston, TX, United States
Organization Source: NASA Johnson Space Center; Houston, TX, United States
Description: 1p; In English
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: Copyright
NASA Terms: EXTRATERRESTRIAL RADIATION; LUNAR LUMINESCENCE; MOON; PHOTONS; LUNAR SURFACE; GALACTIC COSMIC RAYS; LANDING SITES; MONTE CARLO METHOD; RADIOACTIVE DECAY; RADIOGENIC MATERIALS; GAMMA RAY SPECTRA; SUNLIGHT; REGOLITH
Availability Source: Other Sources
Availability Notes: Abstract Only
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