Biology
Scientific paper
Aug 1992
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992adspr..12..349w&link_type=abstract
(Life sciences and space research XXIV/2/ - Radiation biology; Proceedings of the Topical Meeting of the Interdisciplinary Scien
Biology
3
Galactic Cosmic Rays, Ionizing Radiation, Linear Energy Transfer (Let), Manned Space Flight, Radiation Belts, Radiation Shielding, Proton Magnetic Resonance, Radiation Effects, Shoran
Scientific paper
Measurements of LET spectra for near-earth orbits with various inclinations and altitudes are presented. A comparison with calculated LET spectra shows that the contribution from direct ionizing galactic cosmic rays is well described by the models. An additional contribution to the spectra originates from stopping protons and from nuclear interactions of particles with material. In the case of an interaction, a large amount of energy is deposited in a small volume by target recoils or target fragments. These events will be called short range (SR) events. For a low-inclination orbit radiation belt protons are the main source of these events while galactic protons become more important when increasing the inclination to near-polar orbits. It is shown that the contribution of SR events for orbits with low altitude (324 km) and 57-deg inclination is comparable to that for an orbit with 28-deg inclination at a high altitude (510 km).
Benton E. V.
Frank Alejandro
Heinrich Wladimir W.
Wiegel B.
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