Accession Number:

AD0269308

Title:

LANDAU DAMPING AND THE ATTENUATION OF WHISTLERS

Descriptive Note:

Corporate Author:

TRW SPACE TECHNOLOGY LABS LOS ANGELES CALIF

Personal Author(s):

Report Date:

1961-03-01

Pagination or Media Count:

1.0

Abstract:

Transverse electromagnetic oscillations in a gyrotropic plasma exhibit Landau damping when the wave is not monochromatic. The dependence of the damping on the equilibrium distribution and the boundary or initial values is investigated. The resulting dispersion relation is interpreted by examining the response of a single free electron to an incident wave. It is shown that the damping mechanism is associated with the Doppler shift caused by the thermal distribution, so that some particles are in cyclotron resonance for any laboratory frequency. The correlation of whistler data with this complex dispersion relation can be used to evaluate electron temperatures at several earth radii. Author

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE