Cosmic-ray-produced stable nuclides: Various production rates and their implications

Details Cosmic-ray-produced stable nuclides: Various production rates and their implications Cosmic-ray-produced stable nuclides: Various production rates and their implications

Jun 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981lpi....12..871r&link_type=abstract

LUNAR AND PLANETARY SCIENCE XII, P. 871-873. Abstract.

Physics

Cosmic Rays, Fission Products, Nuclides, Reaction Kinetics, Solar Protons, Galactic Radiation, Helium, Rare Gases, Reaction Products, Tables (Data)

Scientific paper

The rates for a number of reactions producing certain stable nuclides, such as He-3 and He-4, and fission in the moon are calculated for galactic-cosmic-ray particles and for solar protons. Solar-proton-induced reactions with bromine usually are not an important source of cosmogenic Kr isotopes. The Ba(n,p)-130 reaction cannot account for the undercalculation of Xe-130 production rates. Calculated production rates of N-15, C-13, and H-2 agree fairly well with rates inferred from measured excesses of these isotopes in samples with long exposure ages. Cosmic-ray-induced fission of U and Th can produce significant amounts of fission tracks and of Kv-86, Xe-134, and especially in samples with long exposures to cosmic-ray particles.

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