PROPERTIES OF ELECTRON DYNAMICS IN THE CHANNEL OF A BOUNDED DRIFT SPACE PLASMA-ACCELERATOR (BDSPA)

The electron dynamics in electric and magnetic fields in a channel wit h bounded electron drift and with extended accelerating region is nume rically investigated. The calculational results exhibit typical proper ties of electron trajectories and their dependence on the parameters o f electromagnetic fields, on initial electron state, and on random par ameters that govern reflections from the channel walls. By averaging o ver a sufficiently large number (N = 5000) of electron trajectories, s ome average quantities are obtained that are determined by electron dy namics. Among these are the ''mean electron lifetime'' in the channel and the distribution of longitudinal electronic current over the lengt h and cross section of the channel.