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Pitch angle diffusion as seen by CRRES

Authors
Journal
Advances in Space Research
0273-1177
Publisher
Elsevier
Publication Date
Volume
25
Issue
12
Identifiers
DOI: 10.1016/s0273-1177(99)00520-7

Abstract

Abstract Lifetimes and pitch angle distributions of radiation belt electrons injected into the slot region are determined from CRRES/MEA particle flux measurements. The dominant loss mechanism is presumed to be pitch angle scattering due to whistler waves, for which a theoretical formulation is available. The empirical lifetimes are compared to those from recent calculations, which rely on model whistler wave parameters. CRRES measurements of cyclotron-frequency electric fields are also presented and compared to the wave model.

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