Interplanetary transport of solar cosmic rays

Details Interplanetary transport of solar cosmic rays Interplanetary transport of solar cosmic rays

Jul 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980stin...8225091g&link_type=abstract

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Physics

Focusing, Interplanetary Space, Scattering, Solar Cosmic Rays, Transport Properties, Diffusion, Extraterrestrial Radiation, Mean Free Path

Scientific paper

Numerical solutions are presented for the propagation of solar cosmic rays in interplanetary space, including the effects of pitch-angle scattering and adiabatic focusing. The intensity-time profiles can be well fitted by a simple radial spatial diffusion equation with scattering mean-free path lamb(fit). The radial mean-free path so obtained is significantly larger than the true scattering mean-free path for low-rigidity particles due to both adiabatic focusing and the inapplicability of the diffusive approximation early in the event. The well-known discrepancy between lambda(fit) and the theoretical predictions may be resolved by these calculations.

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