Astronomy and Astrophysics – Astronomy
Scientific paper
Feb 1985
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985mvsfa..26....3s&link_type=abstract
Moskovskii Universitet, Vestnik, Seriia 3 - Fizika, Astronomiia (ISSN 0579-9392), vol. 26, Jan.-Feb. 1985, p. 3-8. In Russian.
Astronomy and Astrophysics
Astronomy
Charged Particles, Radiant Flux Density, Radiation Belts, Spacecraft Charging, Spacecraft Trajectories, Computer Programs, Electron Energy, Mathematical Models, Proton Energy, Radiation Absorption, Radiation Shielding, Solar Cycles, Spacecraft Orbits
Scientific paper
A method has been developed to calculate the energies of electrons and protons along the trajectories of spacecraft in the Van Allen radiation belts. Variations due to the phases of the solar cycle were taken into account. The obtained energies were in the ranges 0.1-400 MeV for protons; and 40-keV-4 MeV for electrons. Numerical integrations of the particle energy spectra for a 24-hour period were used to estimate the amount of radiation absorbed by various shielding materials during one orbit. Numerical results are also presented for electron energies at altitudes lower than the radiation belts.
Iushkov Iu. B.
Savun O. I.
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