title: Investigation of helicon ion source extraction systems.
abstract: Various versions of an extraction system for a helicon ion source have been investigated in high plasma density (>10(12) cm(-3)) modes. The measurements of the plasma density were carried out with a microwave interferometer. Experiments were performed with hydrogen and helium gases. The preliminary results indicate that specially designed extractors are very promising for improving ion beam paraxial brightness.
authors.affiliation: Institute of Applied Physics (IAP), NAS Ukraine (NASU), Sumy, Ukraine. mordyk@ipflab.sumy.ua
authors.forename: S
authors.initials: S
authors.lastname: Mordyk
authors.forename: V
authors.initials: V
authors.lastname: Miroshnichenko
authors.forename: D
authors.initials: D
authors.lastname: Shulha
authors.forename: V
authors.initials: V
authors.lastname: Storizhko