Design and thermal simulations towards a high intensity radioactive ion source for ISOL@MYRRHA

Abstract MYRRHA will be the world’s first large-scale Accelerator Driven System project at power levels scalable to industrial systems. ISOL@MYRRHA produce Radioactive Ion Beams (RIBs) using Isotope Separation On-Line (ISOL) technique, with increased isotope production by high intensity primary beams over a long period while maintaining high-quality RIB. Higher atom flux produced prevalently affects ISOL ion source. A surface source is chosen as because of its reliability and simple design. To understand hot cavity’s behaviour, finite element thermal-electric simulations were performed. start, heating system study experimental results from SPES was reproduced. This concept then modified by: electrically insulating support, adding feedthrough, transforming passive thermal screen into an active part. With this upgrade, temperature profile can adjusted, especially exit part where expected play crucial role in extraction.