An analytic study of the energy and pitch angle distribution of inner-zone protons

Details An analytic study of the energy and pitch angle distribution of inner-zone protons An analytic study of the energy and pitch angle distribution of inner-zone protons

Jan 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980jgr....85....1j&link_type=abstract

Journal of Geophysical Research, vol. 85, Jan. 1, 1980, p. 1-8. Deutsche Forschungsgemeinschaft

Physics

5

Inner Radiation Belt, Pitch (Inclination), Proton Belts, Proton Energy, Angular Distribution, Atmospheric Density, Integral Equations, Neutron Sources, Perturbation Theory

Scientific paper

The paper presents analytic solutions for near equatorially mirroring protons of energies 5-100 MeV at the lower edge of the radiation belt (L not greater than 1.25), based upon Crand-injection and time-varying energy losses. The proton spectral shape is essentially determined by Crand, whereas the ambient atmosphere controls the anisotropy and the spatial and temporal variations of the flux. The experimental data of Fischer et al. (1977) are used to check the results. Above L equals 1.25, radial diffusion gives rise to an enhancement of the flux, an increase of the anisotropy and a change of the energy spectrum.

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