1+/N+ method: numerical simulation studies and experimental measurements on the SPIRAL1 ECR Charge Breeder

In the framework of the SPIRAL1 (SP1) facility, the R & D of charge breeding technique is of primary interest for optimizing the yields of radioactive ion beams (RIBS). This technique involves the transformation of mono-charged ion beams into multi-charged ion beams by operating an SPIRAL1 Electron Cyclotron Resonance charge breeder (CB). During the SPIRAL1 commissioning, experimental studies have been performed in order to understand the transport of the beam through the SP1 CB with and without ECR plasma. Numerical simulations including ion optics and some ECR plasma features have been developed to evaluate ion losses during the ion transport through the SP1 CB with and without a simplified model of the ECR plasma.