Boundaries of the trapping and loss of outer-radiation-belt particles, conditioned by the magnetospheric magnetic field

Details Boundaries of the trapping and loss of outer-radiation-belt particles, conditioned by the magnetospheric magnetic field Boundaries of the trapping and loss of outer-radiation-belt particles, conditioned by the magnetospheric magnetic field

Nov 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982kosis..20..866s&link_type=abstract

Kosmicheskie Issledovaniia, vol. 20, Nov.-Dec. 1982, p. 866-871. In Russian.

Physics

2

Earth Magnetosphere, Energetic Particles, Geomagnetism, Magnetically Trapped Particles, Outer Radiation Belt, Atmospheric Models, Current Sheets, Lines Of Force, Losses, Pitch (Inclination)

Scientific paper

A realistic quantitative model of the quiet-time magnetospheric magnetic field is used to calculate the drift shells and loss rates of energetic particles, conditioned by the pitch-angle scattering of particles as they cross the equatorial current sheet on the nighttime side. The value of pitch-angle scattering is calculated numerically as a function of the ratio Rc/rho, where Rc is the radius of magnetic-field-line curvature at the equator, and rho is the Larmor radius of particles at the equator. When Rc/rho is not greater than approximately 10, the scattering amplitude for one crossing of the current sheet sharply increases, and the particles fill the ionospheric-loss cone and are scattered in the drift-loss cone. Losses on outer closed drift shells have a characteristic time of about 1 hour for energetic electrons, and a significantly greater characteristic time for protons.

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