Design of the 14.5 GHz ECR Ion Source for the 100 MeV Superconductor Cyclotron

An ECR ion source is being developed as an intensive injection source of a 100 MeV superconductor cyclotron constructed newly in Korea. ECR plasma is characterized with highly charged states of ions, which is come from its large population of high temperature electrons and good plasma confinement by a strong mirror magnetic field. To obtain a large intensity ion beam of highly charged states, the ECR wave should have a high frequency and a large power. A high frequency wave requires again a large magnetic field for the resonance. In this paper, the general specifications of our ECR ion source, which is determined according to the performance requirements, are introduced, and some design details of the components comprising the ion source are described