Superconducting ECR sources

The need for a higher confining field in the Electron Cyclotron Resonance (ECR) ion source traps has pushed towards the use of superconducting magnets. Now many ECR sources work in the High B mode, i.e. with confining field up to 3 BECR or higher, which for frequency of 14 GHz or higher makes it necessary to use superconducting magnets. arison of superconducting ECR sources and room temperature ECR sources will be presented and particular attention will be paid to the results obtained on 6.4 GHz SC-ECRIS at MSU-NSCL and to the project of the 14.5 GHz SERSE, a superconducting ECR source which will be used at Laboratorio Nazionale del Sud (LNS) as injector for the K-800 Superconducting Cyclotron. The original project of its magnetic system has been upgraded by taking into account the results of the High B mode operation of the SC-ECRIS at MSU and now the mirror field may achieve 2.7 T. The magnet design will allow us to operate in a wide range of magnetic configuration and this should make the tuning of the source easy. ospects for the future will be outlined, along with the two next projects of superconducting ECR sources to be developed at LNS and at Lawrence Berkeley Laboratory.