The invented Hall current ion source with a hybrid positioning of a central magnetic pole of {HEAD ~ a bout a half a distance} between {TAIL ~ a gas distributing system} and an external magnetic pole and with a high positive gradient of magnetic field helps to improve also electromagnetic focusing of plasma flow inside a discharge chamber from discharge chamber walls into a median part of a discharge chamber 
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The invented Hall current ion source with a hybrid positioning of a central magnetic pole of { HEAD ~ a bout a half a distance } between { TAIL ~ a gas distributing system } and an external magnetic pole and with a high positive gradient of magnetic field helps to improve also electromagnetic focusing of plasma flow inside a discharge chamber from discharge chamber walls into a median part of a discharge chamber
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