Calculated results are presented of the absorbed-dose rates and dose-equivalent rates as a function of depth in tissue when galactic cosmic-ray proton and alpha-particle spectra are isotropically incident on a spherical shell shield with a tissue sphere at its center. Aluminium shield thicknesses of 5 and 20 g cm to the power -2 are considered. It is found that the dose rates from incident alpha particles are comparable to those from incident protons, and that for both protons and alpha particles there is a very appreciable contribution to the dose rates from nuclear-reaction products.
Shielding of manned space vehicles against galactic cosmic-ray protons and alpha particles
Abschirmung bemannter Raumfahrzeuge gegen Protonen und Alphateilchen in der galaktischen kosmischen Strahlung
Nuclear Science and Engineering ; 52 , 1 ; 124-129
1973
6 Seiten, 3 Bilder, 1 Tabelle, 20 Quellen
Article (Journal)
English
ABSCHIRMUNG , RAUMFAHRZEUG , STRAHLENSCHUTZ , PROTON , DOSIS , ALPHA-STRAHLUNG , ALUMINIUM , SEKUNDAEREMISSION , DICKE
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