Electron flow accelerating method and apparatus which can generate a high-power beam

摘要

In a plasm beam generating apparatus comprising a plasma source and an anode portion for receiving a plasma beam, a magnetic field generating device is arranged between the plasma source and the anode portion along an orbit of the plasma beam to generate magnetic field having magnetic gradient such that space charges are generated. The magnetic field generating device accelerates electron flow in the plasma beam to supply accelerated electron flow to the anode portion.