Accession Number : AD0775087

Title :   Research Concerning X-Ray Emission of Magnetoactive Plasmas.

Descriptive Note : Final rept.,

Corporate Author : VISIDYNE INC BURLINGTON MASS

Personal Author(s) : Manley,Oscar P.

Report Date : 03 JAN 1974

Pagination or Media Count : 27

Abstract : The applicability of two distinct approaches to the problem of structural stability of optically thin hot radiating plasma was investigated. It was found that by exploring the properties of the simple isotropic model that: (1) topological methods lead to simple diagrams from which stability may be easily determined; (2). these methods also yield approximations useful in estimating the solutions applicable beyond the point of instability; and, (3). some concepts of non-equilibrium steady state thermodynamics have been found applicable in studying the behavior of radiating plasmas. In particular, while the simple criterion of minimum free energy is inadequate for determining system stability under small perturbations, an extended definition of entropy production was found to be equivalent to a Liapounoff function for the system. (Modified author abstract)

Descriptors :   *Plasmas(Physics), *X rays, Thermodynamics, Emission, Magnetohydrodynamics, Stability

Subject Categories : Plasma Physics and Magnetohydrodynamics

Distribution Statement : APPROVED FOR PUBLIC RELEASE