Negative ion rich plasmas in continuous and pulsed wave modes in a minimum-B magnetic field

摘要: Generation of hydrogen negative ion rich plasmas is investigated in continuous wave (CW) and pulse modulated (PM) modes 2.45 GHz a minimum-B magnetic field. The waves are launched directly into the plasma device utilize particle resonances for high density generation. In CW operation, chamber divided two sections, namely, source downstream region, separated by transverse field that allows only cold electrons (∼1 eV) region helpful generation ions. H− measured second derivative beat method compared with values obtained from steady state model extracted current density. pulsed mode, temporal filtering generates afterglow phase. estimated using saturation ratio results time dependent balance equations. essential idea both ...