Contribution to ion source developments for SPIRAL-2 and EURISOL

Next generation facilities such as those designed in SPIRAL-2 and EURISOL projects require dedicated radioactive ion sources. Indeed, the ion source must be capable of operating under the very strong radiation generated by the primary beam in the production target. In the framework of the SPIRAL-2 design study, realistic and efficient solutions have been studied to face these unprecedented irradiation constraints. The considered options will be described and argued. In particular, considering forced electron beam induced are discharge-type ion sources, the reasons to start the development of a new prototype, the ionization by radial electron neat adaptation (IRENA) ion source, will be presented. The IRENA ion source is based on the electron beam generated plasma ion source. The design of the first prototype will be presented and discussed.