Plasma Theory and Simulation.
Abstract
Contents: The Pierce diode linear behavior with external R, C, or L was verified very accurately by particle simulation; The Pierce diode non-linear equilibria with R, C, or L are described theoretically and explored via computer simulation; A simple model of the sheath outside the separatrix of an FRC was modeled electrostatically in 2d and large potentials due to the magnetic well and peak were found; these may explain the anomalously high ion confinement in the FRC edge layer; A planar plasma source with cold ions and warm electrons produces a source sheath with sufficient potential drop to accelerate ions to sound velocity, which obviates the need for a Bohm pre-collector-sheath electric field; Collector Sheath, Presheath, and Source Sheath in a Collisionless, Finite Ion Temperature Plasma; Potential Drop and Transport in a Bounded Plasma with Ion Reflection at the Collector; Potential Drop and Transport in a Bounded Plasma with Secondary Electron Emission at the Collector; A movie has been made displaying the long-lived vortices resulting from the Kelvin-Helmholtz instability in a magnetized sheath. A relativistic Monte Carlo binary (Coulomb) collision model has been developed and tested for inclusion into the electrostatic particle simulation code TESS; and Two direct implicit time integration schemes are tested for self-heating and self-cooling and regions of neither are found as a function of delta t and delta x for the model of a freely expanding plasma slab.
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 31, 1986
- Accession Number
- ADA187100
Entities
People
- Charles K. Birdsall
Organizations
- University of California, Berkeley