Martian regolith as space radiation shielding

Details Martian regolith as space radiation shielding Martian regolith as space radiation shielding

Feb 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991jspro..28....7s&link_type=abstract

Journal of Spacecraft and Rockets (ISSN 0022-4650), vol. 28, Jan.-Feb. 1991, p. 7, 8.

Computer Science

2

Galactic Cosmic Rays, Mars Surface, Radiation Shielding, Regolith, Space Exploration, Spacecrews, Extraterrestrial Radiation, Heavy Ions, Nucleons, Particle Interactions

Scientific paper

Mars exploration crews will be exposed to such high radiation dosages in route from earth that as to sharply reduce the allowable dose they should receive while on the Martian surface. An account is presently given of the possibility of using Martian regolith as crew shielding to maintain very low short-term dose limits. NASA-Langley's nucleon and heavy-ion transport computer codes are used to predict the propagation and interaction of the free-space nucleons and heavy ions through the Martian atmosphere and then through various thicknesses of regolith. The largest reduction in dose occurs in the first 15-20 cm of regolith material.

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