Plasma generating device with hairpin-shaped cathode filaments

摘要: A device for generating a homogeneous ion-electron plasma from which large ion beam can be extracted. The utilizes hairpin-shaped filaments lining at least portions of the wall chamber have been rotated 90 degrees prior known approaches. This provides very significant result in that DC current flowing through produces small solenoidal magnetic field impedes emitted electrons striking walls chamber, may cylindrical or rectangular configuration. improves efficiency source and additional space more filaments, while providing uniform density profile is noise-free.