Studies of a PIG Source for Positive Ion Extraction

The extraction of highly positive charged ions from a PIG source with axial geometry has been investigated by studying the discharge conditions for high discharge currents (up to 1 A) very high magnetic fields B ≈ 18 KT) and with additional electron injection from a duoplasmatron. Compared to an earlier version of the source, the total extracted beam current was somewhat improved, but the charge state distribution remained essentially the same.