SYSTEM AND METHOD FOR GENERATING AN ELECTORN BEAM

摘要

A system for generating an electron beam, comprising: a dielectric body; a device for generating an electric field; a source of electrons; and a control unit for controlling the device, wherein the control unit operatively controls such that in a first phase of a cycle, electrons end up from the source on the dielectric surface, and in a second phase of the cycle, electrons leave the dielectric body.