Accession Number:

AD0259879

Title:

STEADY-STATE SHIELDING RESPONSE OF AN IRRADIATED PLASMA

Descriptive Note:

Quaterly technical note no. 2

Corporate Author:

GEOPHYSICS CORP OF AMERICA BOSTON MA

Personal Author(s):

Report Date:

1961-06-15

Pagination or Media Count:

38.0

Abstract:

For a fairly broad range of certain nondimensional parameters it is possible to couple RF power incident on an inhomogeneous plasma with the resultant beam attenuation appearing as ohmic heating of the medium. The plasma reacts to this heating with a local rise in temperature and electron density which in turn alters the pattern of heat deposition. A closed form solution has been obtained for the plasma response to this heat input using the WKB solution. With an initial exponential distribution of electron density the solution predicts, after the transient response is washed out, the formation of a plasma shield in the form of a progressive invariant wave moving upstream at constant velocity toward the beam source. The shielding velocity and the shape of the wave is specified in terms of basic plasma parameters. Author

Subject Categories:

  • Plasma Physics and Magnetohydrodynamics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE