Accession Number : AD0777986

Title :   Macroscopic Description of Radiation Pressure Forces in Laser-Produced Plasmas,

Corporate Author : NAVAL RESEARCH LAB WASHINGTON D C

Personal Author(s) : Stamper,John A.

Report Date : APR 1974

Pagination or Media Count : 15

Abstract : Radiation pressure forces play an important role both in macroscopic and microscopic processes in laser-produced plasmas. A complete description of the macroscopic processes includes radiation driven electric fields as well as radiation driven forces on the neutral plasma. It is shown that a simple expression for the force which has been applied to certain microscopic processes (e.g., parametric instabilities) ignores field momentum and does not give a general description of macroscopic processes. A theory is discussed which does give a general macroscopic description (absorption, reflection, refraction and magnetic field generation) and which reduces to the above expression, as expected, for sinusoidal fields in a neutral, homogeneous, non-absorbing plasma. (Author)

Descriptors :   *Plasmas(Physics), *Laser beams, *Radiation pressure, Electron density, Magnetic fields, Electric fields, mathematical models

Subject Categories : Plasma Physics and Magnetohydrodynamics

Distribution Statement : APPROVED FOR PUBLIC RELEASE