Electron-bombardment ion source including segmented anode of electrically conductive, magnetic material

摘要: An electron-bombardment ion source has a chamber into which an ionizable propellant is introduced. Electrons flowing from cathode to anode serve ionize the propellant. The resulting ions are accelerated out of chamber. To increase efficiency ionization by electrons, magnetic field established within that end, there plurality successively-spaced segments electrically-conductive material. interconnected so as, collectively, as anode. Individually adjacent ones respectively polarized opposites, together serving establish field.