作者: Jerald P. Dykstra
DOI:
关键词: Atomic physics 、 Protein filament 、 Physics 、 Electron ionization 、 Electron 、 Ionization 、 Gas cluster ion beam 、 Beam (structure) 、 Current (fluid) 、 Magnetic field
摘要: A neutral beam ionizing apparatus for electron impact ionization of a substantially cylindrical beam. The includes an source, and circularly region that is free magnetic fields. In one embodiment the invention, gas cluster beam, source heated filament emitting thermions, including or more direction reversals shaped to produce self-nulling fields so as minimize field due heating current. another at least elliptically region. embodiment, pair co-focal electrodes biased cause electrons emitted from orbit repeatedly through axis be ionized.