On the motion of runaway electrons in momentum space
Abstract
The suprathermal drag force and the motion of suprathermal electrons in momentum space are analyzed for a multicomponent plasma. The calculations of the particle motion are based on the suprathermal FokkerPlanck equation and include relativistic effects. It is found that, owing to pitch angle scattering, the flow patterns in momentum space are more complicated than previously assumed. Simple expressions for the runaway threshold and the perpendicular momentum of relativistic runaways are derived. The acceleration and slowingdown of runaways are also briefly discussed.
 Publication:

Nuclear Fusion
 Pub Date:
 March 1979
 Bibcode:
 1979NucFu..19..327F
 Keywords:

 Electron Runaway (Plasma Physics);
 High Energy Electrons;
 Momentum Theory;
 Particle Motion;
 Plasma Composition;
 Tokamak Devices;
 Drag;
 Electron Scattering;
 Energy Technology;
 Equations Of Motion;
 Flow Distribution;
 FokkerPlanck Equation;
 Plasma Control;
 Relativistic Effects;
 Plasma Physics