IGPP Seminar Series

Stimulated Wave-Particle Interaction of Radiation Belt Particles with Space-Borne Whistler Mode Transmitters

by Paul Song
Center for Atmospheric Research University of Massachusetts Lowell

Abstract

The lifetime of relativistic electrons in the inner radiation belt is very long, posing persistent harm to space systems. It has been proposed to use space-borne transmitters that radiate VLF waves to reduce the lifetime of these electrons via pitch angle diffusion. However, the space plasma will react to the varying high voltage at the active antenna during transmission by forming a sheath surrounding the antenna to prevent the waves from radiating out. Radiation in anisotropic plasma has not been well formulated in previous theories. In this seminar I will describe the current understanding of the problem: the sheath models, the radiation theory, and the transmission experiments conducted using the Radio Plasma Imager on the IMAGE satellite.
Tuesday, 17 February 2009
3853 Slichter Hall
Refreshments at 3:45 PM
Lecture at 4:00 PM