Interplanetary transport of solar cosmic rays
Abstract
Numerical solutions are presented for the propagation of solar cosmic rays in interplanetary space, including the effects of pitchangle scattering and adiabatic focusing. The intensitytime profiles can be well fitted by a simple radial spatial diffusion equation with scattering meanfree path lamb_{(fit).} The radial meanfree path so obtained is significantly larger than the true scattering meanfree path for lowrigidity particles due to both adiabatic focusing and the inapplicability of the diffusive approximation early in the event. The wellknown discrepancy between lambda_{(fit)} and the theoretical predictions may be resolved by these calculations.
 Publication:

NASA STI/Recon Technical Report N
 Pub Date:
 July 1980
 Bibcode:
 1980STIN...8225091G
 Keywords:

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