Computer Science
Scientific paper
May 1977
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977kosis..15..488s&link_type=abstract
(Kosmicheskie Issledovaniia, vol. 15, May-June 1977, p. 488-490.) Cosmic Research, vol. 15, no. 3, Nov. 1977, p. 423-425. Trans
Computer Science
Long Term Effects, Radiation Belts, Radiation Dosage, Secular Variations, Electron Energy, Inner Radiation Belt, Particle Trajectories, Radiation Shielding, Satellite Observation
Scientific paper
Measurements of the absorbed radiation dose experienced by various satellites in earth's radiation belts are used to estimate the maximum radiation dose received in the inner radiation belt behind a shield of 1 g/sq cm Al in the period from 1962 to 1971. The results show that the maximum radiation dose has decreased by a factor of about 1000 between 1962 and 1970 due to decay of the energetic-electron belt produced after the Starfish experiment, that the radiation dose up to 1970 was determined mainly by electrons of artificial origin, and that the radiation dose in the 1970s is determined mainly by inner-belt protons. It is concluded that trajectory coefficients computed for the 1960s are not suitable for calculating orbital doses in the 1970s because the space and energy distributions of particles determining the maximum dose have changed.
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