Simulation studies on stability of hot electron plasma
Abstract
Stability of a hot electron plasma in a NBT(EBT)like geometry is studied, using a 21/2 dimensional relativistic, electromagnetic particle code. In the simulation model, spatial variation is allowed only in the x and y directions, with the zdirection being an ignorable coordinate, although the particles have three velocity components (u sub x, v sub y, v sub z). The system is periodic in the ydirection and is bounded in the xdirection with total grid size L sub x xL sub y=128d x 128d, where d is the grid spacing. The external magnetic field B sub 0 is formed by an external current J sub 0 which is rigid and not influenced by the plasma. The external magnetic field B sub 0 points in the zdirection, and its strength decreases with x as 1/(xLx2+R), where the constant R is a measure of the magnetic field gradient. The initial plasma density also decreases with x. All quantities are constant in the ydirection in the equilibrium state. Because both the external magnetic field and the plasma density (pressure) decreases with x, the plasma can be interchange unstable if there is no hot electron layer.
 Publication:

Transport in OpenEnded Systems
 Pub Date:
 March 1985
 Bibcode:
 1985toes.work..112O
 Keywords:

 Beta Factor;
 Core Flow;
 Electromagnetic Radiation;
 Hot Electrons;
 Ion Cyclotron Radiation;
 Magnetic Fields;
 Models;
 Plasma Density;
 Relativistic Particles;
 Simulation;
 Stability;
 Toruses;
 Equilibrium;
 Larmor Radius;
 Linearity;
 Rates (Per Time);
 Plasma Physics