Speaker
Description
Contaminants reduction in Electron Cyclotron Resonance Charge Breeders (ECRCB) is a key point for the future experiments foreseen at INFN-LNL and GANIL Isotope Separation On Line (ISOL) facilities. Depending on the resolution of the spectrometer installed downstream an ECRCB, a radioactive ion beam (RIB) could be contaminated by the impurities introduced in the breeding stage, due to the plasma-surface interaction. This is particularly true in case of low intensity RIBs. An ongoing collaboration between INFN-LNL, LSPC and GANIL laboratories aims at improving the RIBs purity by decreasing the number and/or the amount of the possible contaminants. Comparative experminents will be done at LPSC using different techniques, like covering the plasma chamber wall with liners in several material. Different configurations of the ECRCB will also be tested, with the enhancement of the efficiency and charge breeding time parameters as additionnal objectives. A presentation of this program is proposed together with the recent upgrade of the LPSC 1+N+ test bench, which goal was to improve the vacuum quality and cleanliness of all the beam line devices.