Moon surface radiation environment analysis for February 1956 solar event conditions

Details Moon surface radiation environment analysis for February 1956 solar event conditions Moon surface radiation environment analysis for February 1956 solar event conditions

Dec 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008adspr..42.1906b&link_type=abstract

Advances in Space Research, Volume 42, Issue 12, p. 1906-1912.

Astronomy and Astrophysics

Astronomy

Scientific paper

The radiation environment on the surface of the Moon presents a new source of particles resulting from the interaction of incoming solar protons and galactic cosmic rays with the lunar regolith. Here we present a study of the fluence profile of primary and secondary particles on the top 1 m layer of lunar regolith for the spectrum of one of the hardest spectrum solar event, that of February 1956. Different regolith compositions and their influence in proton and neutron production and backscattering is considered, as well as the nature of the backscattered radiation. Simple geometry Monte Carlo simulations have been used also for calculating regolith shielding properties, and it is shown that a layer of at least 50 cm regolith is needed for significantly reducing the dose levels received by astronauts in a hypothetical lunar habitat.

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