Modeling of the Lunar Radiation Environment

Details Modeling of the Lunar Radiation Environment Modeling of the Lunar Radiation Environment

Apr 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007nuphs.166..169d&link_type=abstract

Nuclear Physics B Proceedings Supplements, Volume 166, p. 169-183.

Physics

Nuclear Physics

1

Scientific paper

In view of manned missions targeted to the Moon, for which radiation exposure is one of the greatest challenges to be tackled, it is of fundamental importance to have available a tool, which allows the determination of the particle flux and spectra at any time and at any point of the lunar surface. With this goal in mind, a new model of the Moon's radiation environment due to Galactic Cosmic Rays (GCR) and Solar Particle Events (SPE) has been developed. Primary particles reach the lunar surface, and are transported all throughout the subsurface layers, with backscattering patterns taken into account. The surface itself has been modeled as regolith and bedrock, with composition taken from the results of the instruments flown on the Apollo missions. Subsurface environments like lava tubes have been considered in the analysis. Particle transport has been performed with both deterministic and Monte Carlo codes with an adaptation for planetary surface geometry. Results are given in terms of fluxes, doses and LET, for most kinds of particles for various kinds of soil and rock chemical compositions.

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