Analysis of Ion-Species of a Dedicated Duoplasmatron-type Ion Source for a 100 keV-Rage Compact Ion-Microbeam System

Hydrogen-ion beam species generated by a dedicated duoplasmatron-type ion source that was developed for a MeV compact ion-microbeam system was experimentally analyzed in a test bench to study the ion source feature. Bimolecular and trimolecular hydrogen-ion beams were mainly generated by the duoplasmatron-type ion source. The ratio of the two different molecular hydrogen-ion beams was controlled by turning hydrogen-gas pressure. This experiment showed that the duoplasmatron-type ion source could produce a single molecular hydrogen-ion beam for ion-microbeam applications.