A new 6 GHz electron cyclotron resonance (ECR) ion source has been developed and installed at Louvain-la-Neuve. It replaces the previous ECR ion source OCTOPUS and routinely produces highly charged ion beams from gaseous elements with a better intensity and stability. The magnetic configuration of the ion source and results obtained for the production of gaseous (O,Ar,Xe) and metallic (Ni) ions are presented. The possibility to use the sputtering method to ionize radioactive elements has been tested on F18(T1/2=110 min). Ionization efficiency measurements for F1+18 are reported.

International audienceThe GANIL heavy ion accelerator can be used as a driver for producing exotic beams either by fragmentation of the projectile, or by the ISOL method through the SPIRAL complex. The accelerator was first equipped with several devices for protection against thermal effects and activation. Then tests were carried out to increase the primary beam intensities, especially for projectiles ranging from C to Ar. The goal of 2×1013 pps was obtained with a 75 MeV/n carbon beam extracted from SSC2 for several hours. Losses at extraction limited the Ar intensity to 5×1012 pps, while a 1×1013 pps was aimed at. For some other ion species, substantial increases were obtained, although their use are somewhat limited by weaknesses in the concrete shielding. Detailed results of these tests are discussed. Possible cures to overcome limitations are presented, along with results of simulations concerning the effect of longitudinal space charge forces

International audienceIn the framework of the Système de Production d'Ions Radioactifs Accéléres en Ligne Phase II (SPIRAL II) project, one of the ion sources which produce $1^+$ ions is an electron-cyclotron-resonance ion source (ECRIS). The source is installed in a region where the dose rate is such that the radiation hardness is very important for the materials used. Moreover, the proximity of the UCx target leads to additional constraints as potential surface pollution. A radiation-hard ECRIS has been designed, and the rf injection is under study. The results of rf injection with a wave guide and with an antenna will be presented. The performance obtained with both injection systems combined with the environmental constraints have led us to inject the rf using an antenna. The last point consists in designing a wave guide able to transport the rf through the shielding of the SPIRAL II plug. Design constraints, tests, and the current state of the project will be presented

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