Accession Number:

AD0608521

Title:

ELECTROMAGNETIC ABSORPTION EFFECTS IN PLASMA SPHERES.

Descriptive Note:

Final rept.,

Corporate Author:

AVCO CORP WILMINGTON MASS RESEARCH AND ADVANCED DEVELOPMENT DIV

Personal Author(s):

Report Date:

1964-11-25

Pagination or Media Count:

81.0

Abstract:

A set of equations is developed describing the steady state thermodynamics of a homogeneous plasma sphere for electromagnetic plane wave absorption in the case of electric dipole absorption resonance. The thermodynamic properties of the system are obtained by coupling a modified Saha equation with the electromagnetic resonance conditions for maximum power absorption. The main results of this analysis are graphically illustrated for the case of a partially ionized argon plasma. Also included are regions of validity for which such a system is compatible with the electromagnetic resonance conditions as well as with the fundamental limitations imposed by the physics of the problem. In fact, it is shown that the plasma sphere radius is restricted to values less than 5 cm order of magnitude and an incident angular frequency of greater than 10 to the 10th powersec. The gas temperature increases as frequency increases, and the radius decreases with increasing frequency. With these restrictions as well as the associated bounds on the other thermodynamic parameters, it seems highly improbable that one can sustain plasma spheres of significant size for the case of resonance absorption. Author

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE