Controlled precipitation of radiation belt electrons

Details Controlled precipitation of radiation belt electrons Controlled precipitation of radiation belt electrons

May 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003jgra..108.1186i&link_type=abstract

Journal of Geophysical Research (Space Physics), Volume 108, Issue A5, pp. SMP 6-1, CiteID 1186, DOI 10.1029/2002JA009580

Physics

26

Magnetospheric Physics: Energetic Particles, Precipitating, Ionosphere: Wave/Particle Interactions, Radio Science: Waves In Plasma, Magnetospheric Physics: Magnetosphere-Inner

Scientific paper

First-order estimates indicate that the lifetime of energetic (a few MeV) electrons in the inner radiation belts (e.g., near L = 2) may be significantly reduced by in situ injection of whistler mode waves at radiated power levels of a few kW at frequencies of a few kHz. Our estimates are based on previously published results concerning the effect on the electron lifetimes of VLF signals from ground-based VLF transmitters operating in the 17-23 kHz range. Waves at lower frequencies (a few kHz) can drive diffusion rates that are higher by a factor of as much as ~30 and can also be efficiently stored in the magnetospheric cavity, resulting in additional effective enhancement of wave power density of a factor of ~16. This wave power enhancement is also expected to enhance the MeV electron diffusion rates.

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