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