Cumulation of High-current Electron Beams: Theory and Experiment

Simulation of Electron Beam Dynamics in a Nonmagnetized High-Current Vacuum Diode

“…A similar mechanism leads to the formation of currentdensity peaks (maxima) (Figs. 10,11). The electrons that escape from the convex explosive-emission center are repulsed.…”

“…The interaction between these repulsing microflows gives rise to peaks and dips in the current density distribution (Figs. 10,11).…”

“…The most recent experimental and theoretical research of ring-type cathodes revealed the effect of high-current electron beam cumulation [11].…”