Speaker
Description
Ion source is an important subsystem in accelerators, which employ electromagnetic fields to accelerate charged particles to generate ion beams. Accelerators are essential facilities for advancing multidisciplinary research and developing technological applications, such as production of medically relevant radioisotopes and ion beam irradiation of cyclotrons. Among the various ion source technologies, the 2.45 GHz ECR (Electron Cyclotron Resonance) ion source demonstrates significant potential due to its ability to generate dense plasma and deliver high beam current. To systematically investigate and optimize its performance, coupled numerical simulations were used to analyze the key parameters of both the plasma chamber and the extraction system, and get the results of plasma density, ion fraction, beam current and quality. With the optimized design, the current increases by 42.4%, the emittance decreases by 21%, and the beam spot decreases by 32.9%, meeting the requirements of accelerating structure, and providing important theoretical data for the beam commissioning. This work also offers some critical insights for the development of high current, low emittance, and high stability ECR ion sources.
