Accession Number:

ADA134115

Title:

Plasma Theory and Simulation.

Descriptive Note:

Quarterly progress rept. no. 4, 1 Oct-31 Dec 81,

Corporate Author:

CALIFORNIA UNIV BERKELEY ELECTRONICS RESEARCH LAB

Personal Author(s):

Report Date:

1981-12-31

Pagination or Media Count:

12.0

Abstract:

As discussed in a previous document, the ion distribution function in the thermal-barrier region of a tandem mirror machine can be unstable to electrostatic andor electromagnetic two-stream modes. In this document the author examines the analytic stability in an infinite medium of those electronic ion-ion two-stream modes which have their wave vector, k, parallel to the axial magnetic field this is equivalent to examining 1-d localized stability. The point of our doing inhomogenous simulations is precisely to examine any non-infinite medium effects on the instability in a thermal barrier. Any unstable ion-ion two-stream modes are expected to have wavelengths of order wavelength di since the thermal-barrier cell itself is much longer that this, our analytic local approximation will provide at least a zeroth-order estimate of instability as well as a reference from which to measure any inhomogenity effects recovered later by our particle simulation runs.

Subject Categories:

  • Plasma Physics and Magnetohydrodynamics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE