Accession Number : AD0607435

Title :   STABILITY OF AN IRRADIATED PLASMA SLAB UNDER CRITICAL POWER LOADING,

Corporate Author : GEOPHYSICS CORP OF AMERICA BEDFORD MASS

Personal Author(s) : Florance,E. T. ; Sillars,R. V. ; King,J. I. F.

Report Date : SEP 1964

Pagination or Media Count : 50

Abstract : The effects of an upper bound on the ionization frequency for a plasma slab irradiated with intense microwave power are investigated using a Chapman-function model. A quadrature algorithm is developed for the numerical computation of exact steady-state electron density profiles. The results for both stable and unstable profiles are analyzed in terms of a stability condition involving the deposition rate of microwave power. The dynamics of the electron distribution within the slab is treated approximately by constraining the density profiles to a sinusoidal form. A dynamical interpretation of stability then emerges from the approximate electron gain-loss equation. The stability problem is also formulated graphically by the introduction of a potential-like function. Steady-state characteristic curves for the plasma slab are calculated using sinusoidal density profiles; typical contours of constant net electron gain rate are similarly presented. (Author)

Descriptors :   (*PLASMAS(PHYSICS), STATISTICAL MECHANICS), IONIZATION POTENTIALS, KINETIC THEORY, DIFFUSION, RADIOFREQUENCY POWER, ELECTRONS, DISTRIBUTION, STABILITY, FUNCTIONS(MATHEMATICS), MATHEMATICAL MODELS, GRAPHICS

Distribution Statement : APPROVED FOR PUBLIC RELEASE