GENERATION OF AN ELECTRON BEAM BY A FOREVACUUM PLASMA SOURCE WITH A SINGLE EMISSION CHANNEL IN THE PRESENCE OF MAGNETIC FIELD

Consideration has been given to the effects of a longitudinal magnetic fi eld in the discharge-emission system of a forevacuum plasma electron source on the conditions of generating a focused electron beam with high specifi c power. It has been shown that the creation of a magnetic fi eld with an induction of up to 0.4 mT ensures the possibility of expanding the emission channel, and, accordingly, increasing the current and current density of the electron beam while retaining the electric strength of the accelerating gap. As a result, the power density of the electron beam of the forevacuum plasma electron source has been raised to the value q = 1.5·106 W/cm 2 .
   
Author:  I. Yu. Bakeev, A. A. Zenin, A. S. Klimov, E. M. Oks
Keywords:  electron beam, plasma electron source, emission channel, magnetic focusing, longitudinal magnetic fi eld, forevacuum pressure region
Page:  1357