Abstract : The present paper summarizes the results obtained from the past few years in the framework of
the Enhanced Multi-Ionization of short-Lived Isotopes for Eurisol (EMILIE) project. The EMILIE
project aims at improving the charge breeding techniques with both Electron Cyclotron Resonance
Ion Sources (ECRIS) and Electron Beam Ion Sources (EBISs) for European Radioactive Ion Beam
(RIB) facilities. Within EMILIE, an original technique for debunching the beam from EBIS charge
breeders is being developed, for making an optimal use of the capabilities of CW post-accelerators
of the future facilities. Such a debunching technique should eventually resolve duty cycle and
time structure issues which presently complicate the data-acquisition of experiments. The results
of the first tests of this technique are reported here. In comparison with charge breeding with
an EBIS, the ECRIS technique had lower performance in efficiency and attainable charge state
for metallic ion beams and also suffered from issues related to beam contamination. In recent
years, improvements have been made which significantly reduce the differences between the two
techniques, making ECRIS charge breeding more attractive especially for CW machines producing
intense beams. Upgraded versions of the Phoenix charge breeder, originally developed by
LPSC, will be used at SPES and GANIL/SPIRAL. These two charge breeders have benefited from
studies undertaken within EMILIE, which are also briefly summarized here.
