a cathode neutralizer placed outside ion source at a certain distance to provide optimal plasma flow with {HEAD ~ electrons} that move into {TAIL ~ anode area} to close electrical circuit, for ionization of working gas molecules, and for neutralization of ions in discharge channel and outside an ion source 
move into
a cathode neutralizer placed outside ion source at a certain distance to provide optimal plasma flow with { HEAD ~ electrons } that move into { TAIL ~ anode area } to close electrical circuit , for ionization of working gas molecules , and for neutralization of ions in discharge channel and outside an ion source
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH