Superconducting driver linac beam dynamics optimization for RIA

The Rare Isotope Accelerator (RIA) facility is under study at NSCL. A superconducting linac with total beam power of at least 100 kW and up to 400 kW, capable of accelerating all light and heavy ions including uranium to the final energy of 400 MeV/u or more, is proposed as the driver accelerator for RIA. A multiple charge state beam acceleration concept yields additional challenges for optimization of the heavy ion beam dynamics. Different variants of the linac layouts have been simulated using the LANA computer code. Comparison of the simulation results for different options is presented.