Current status of metal ion beam accelerator and preliminary study for irradiation accuracy improvement

KOMAC has provided the metal ions such as Cr+, Fe+, Co+, and Cu+ metal ions to users. However, there are a few problems to provide more stable ion beam and long operation time process under the current machine. Especially, beam measuring system should be modified and supplemented to improve accuracy of beam uniformity and dose rate. In this study, the current status of metal ion beam accelerator and basic study to improve irradiation accuracy, dose and beam profile, is described. We have successfully obtained a metal ion beam by vaporizing of various metal chlorides, Cr+, Fe+, Co+, Cu+ and the optimal extraction process conditions from the bernas type ion source. But a lots of beam measurement system requires for accurate dose. The research and development for beam uniformity should be considered and reviewed