Accession Number : AD0697743

Title :   BEAM/PLASMA INTERACTION IN A WARM INHOMOGENEOUS PLASMA.

Descriptive Note : Internal memo.,

Corporate Author : STANFORD UNIV CALIF INST FOR PLASMA RESEARCH

Personal Author(s) : Crawford,F. W. ; Ristic,V.

Report Date : MAR 1967

Pagination or Media Count : 20

Abstract : The work is concerned with beam/plasma interaction in a radially inhomogeneous plasma. Electron temperature is taken into account, and interaction with the warm plasma wave modes whose cut-offs correspond to Tonks-Dattner resonance frequencies. Macroscopic theory is presented for plasma and beam filling a parallel plate strip line. Preliminary conputations of the dispersion characteristics have been carried out by an approximate method, and indicate strong growth of the various radial modes for both symmetric and asymmetric excitation. It is concluded that stimulation of these modes can explain emission of noise peaks near the Tonks-Dattner resonance frequencies for plasmas containing some fast electrons. (Author)

Descriptors :   (*PLASMA MEDIUM, *ELECTRON BEAMS), INTERACTIONS, DISPERSION RELATIONS, RESONANCE, OSCILLATION, PLASMAS(PHYSICS)

Subject Categories : Plasma Physics and Magnetohydrodynamics

Distribution Statement : APPROVED FOR PUBLIC RELEASE