Accession Number : AD0412921

Title :   LONG WAVELENGTH CHARGE OSCILLATIONS OF A CYLINDRICAL PLASMA.

Corporate Author : BOEING SCIENTIFIC RESEARCH LABS SEATTLE WASH

Personal Author(s) : Gerwin,Richard

Report Date : JUN 1963

Pagination or Media Count : 19

Abstract : A cylindrical plasma is given to be in an in finitely strong axial magnetic field. Taking only longitudinal temperature into account, a dispersion relation (including Landau damping) is calculated for electron charge oscillations whose wavelengths are much larger than the plasma radius. The Landau damping is found to be far larger than that of waves in an infinite plasma of the same density and temperature, and for the same wavelength. The radiation damping of these oscillations is also calculated. It is found that these oscillations do not radiate at all from an infinitely long cylin43. For a plasma cylinder of finite length it is found that the radiation damping of these oscillations can be made negligible compared to Landau damping for reasonable laboratory parameters. It is assumed throughout that the unperturbed state is a Maxwellian velocity distribution. (Author)

Descriptors :   (*PLASMAS(PHYSICS), MAGNETIC), (*OSCILLATION, CYLINDRICAL), (*OSCILLATION, DAMPING), PERTUBATION, DENSITY, EQUATIONS, PROPAGATION, PLASMA, ELECTROMAGNETISM, CYCLOTRONS, ELECTRON, FREQUENCY, INTEGRAL TRANSFORMS, NUMERI, ELECTRON DENSITY, INTEGRALS., (U)INTEGRALS.

Distribution Statement : APPROVED FOR PUBLIC RELEASE