Abstract
An adjustable radio frequency (RF) positive hydrogen ion source is designed in Huazhong University of Science and Technology (HUST) to provide ion beam with adaptive beam current and beam energy for neutral beam injection (NBI) related material research. The ion source aims to produce 10–20 keV positive hydrogen ion beam with total current of 50–125 mA. This paper investigates the design of the RF ion source including RF driver via inductively discharge mechanism and the extractor which is designed and optimized, including ion beam optics simulation, thermal analysis and power supply analysis. The vacuum analysis of the source is carried out as well.
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