Mathematics – Probability
Scientific paper
Dec 1988
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988jgr....9314284f&link_type=abstract
Journal of Geophysical Research (ISSN 0148-0227), vol. 93, Dec. 1, 1988, p. 14284-14294.
Mathematics
Probability
9
Natural Satellites, Planetary Rings, Radiation Absorption, Radiation Belts, Particle Motion, Planetary Magnetic Fields, Probability Theory
Scientific paper
There is a need to calculate loss rates when trapped Van Allen radiation encounters inert orbiting material such as planetary rings and satellites. An analytic expression for the probability of a hit in a bounce encounter is available for all cases where the absorber is spherical and the particles are gyrotropically distributed on a cylindrical flux tube. The hit probability is a function of the particle's pitch angle, the size of the absorber, and the distance between the flux tube and the absorber when distances are scaled to the gyroradius of a particle moving perpendicular to the magnetic field. Using this expression, hit probabilities in drift encounters were computed for all regimes of particle energies and absorber sizes.
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