Physics – Nuclear Physics
Scientific paper
Feb 1977
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977izssr..41q.390s&link_type=abstract
(Mezhdunarodnyi Seminar po Aktivnym Protsessam na Solntse i Probleme Solnechnykh Neitrino, 8th, Leningrad, USSR, Sept. 25-27, 19
Physics
Nuclear Physics
Cosmic Rays, Earth Surface, Particle Interactions, Radioactive Isotopes, Rare Gases, Cosmology, Magnitude, Meteoritic Composition, Nuclei (Nuclear Physics), Radiant Flux Density, Volcanology
Scientific paper
The possibility is considered that a certain amount of the radionuclides present on earth was produced by cosmic-ray interactions with neon, krypton, and xenon nuclei in the atmosphere as well as with dust of volcanic and meteoric origin. It is shown that interactions with rare-gas nuclei and volcanic matter produce only small or negligible amounts of heavy radioisotopes. Ablation of meteors is then investigated as a source of atmospheric radioisotopes. The flux densities of 11 radioisotopes carried into the atmosphere by meteoric matter are computed, and the stratospheric lifetime of such isotopes is estimated. It is concluded that the flux densities in individual areas of earth's surface may vary considerably even if the formation rates are constant in time.
Luianas Iu. V.
Styro B. I.
Zinkiavichius P. K.
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