Accession Number:

AD0762272

Title:

Attenuation of Longitudinal Electroacoustic Waves in a Plasma.

Descriptive Note:

Physical sciences research papers,

Corporate Author:

AIR FORCE CAMBRIDGE RESEARCH LABS L G HANSCOM FIELD MASS

Personal Author(s):

Report Date:

1973-02-28

Pagination or Media Count:

27.0

Abstract:

Longitudinal waves that can be readily excited in a plasma are associated with a large number of important physical applications. One of these applications includes the use of electroacoustic probes to determine the electron density in the boundary layer of re-entry flow fields. Also, the interaction of intense laser radiation with plasmas can excite longitudinal wave instabilities and produce an anomalous resistivity of a plasma. Two mechanisms responsible for the attentuation of longitudinal waves are collisionless Landau damping and electron-neutral collisions. The paper is devoted to an analytical study of the spatial decay of these longitudinal waves using an explicit representation for the electric field vector. Modified author abstract

Subject Categories:

  • Plasma Physics and Magnetohydrodynamics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE