OXYGEN OR HALOGEN NEGATIVE ION SOURCE Russian patent published in 1994 - IPC

FIELD: acceleration engineering. SUBSTANCE: source has gas discharge chamber provided with cold cathode and anode, which are mounted in align relatively magnetic field induction vector in space of the chamber. Source also has system for forming negative ion beam and system for separating ions from attendant electrons. Cold cathode is made of oxide material or of halogen salt. Negative oxygen ions of ions of halogens are formed from gas discharge when bombarding of the cathode by positive ions is carried out. The gas discharge is initiated between anode and cathode in axial magnetic field when inert gas is leaked-in into discharge chamber. EFFECT: improved efficiency. 3 dwg