Accession Number : ADA018051

Title :   Mode Coupling Stabilization of the Dissipative Trapped Electron Instability.

Descriptive Note : Memorandum rept.,

Corporate Author : NAVAL RESEARCH LAB WASHINGTON D C

Personal Author(s) : Manheimer,Wallace M. ; Chu,K. R. ; Ott,Edward ; Boris,Jay P. ; Callen,J. D.

Report Date : NOV 1975

Pagination or Media Count : 26

Abstract : The nonlinear theory of one-dimensional mode-coupling stabilization for the dissipative trapped electron instability is presented. This nonlinear process couples unstable modes at low wave number to damped waves at high wave number. The regions of parameter space in which this process is applicable are carefully specified, and the saturated wave spectra and anomalous transport coefficients are calculated numerically for a range of parameters of interest for large Tokamak operation. The transport coefficients calculated are expected to be upper bounds and yet are appreciably smaller than the unusual (gamma/k squared) estimated in moderate and high temperature regimes.

Descriptors :   *Plasmas(Physics), *Nuclear fusion, *Trapping(Charged particles), Electron energy, Wave equations, Instability

Subject Categories : Fusion Devices(thermonuclear)
      Plasma Physics and Magnetohydrodynamics

Distribution Statement : APPROVED FOR PUBLIC RELEASE