LPSC contributions to the Emilie project
Résumé
In the frame of the Emilie project, in order to better understand the physics of the Charge Breeder process,
the LPSC acted on several levers. First, the 1+N+ test bench was used to make
experiments with 3 versions of the Phoenix Charge Breeder: LPSC, SPES and SPIRAL1. In
parallel, two 1+ electron cyclotron resonance ion sources have been developed. The first is a hot
(650°C) version of the 2.45 GHz COMIC source, which aims is to produce 1+ alkali ions and to
study the atom ionization efficiency dependence with temperature (wall recycling). The second
one is a new 5.8 GHz source able to produce stable low charge state ion beams. A roadmap for
the future developments of the Charge Breeder has been defined at LPSC. First, an upgrade of
the magnetic field configuration is considered in order to enhance the plasma confinement. This
would possibly allow 18 GHz experiments. Second, the injection of several low charge state ions
will be carried out to investigate further the ion capture process in the plasma, helped with new
plasma diagnostics. The results of these experiments and developments will be presented together
with the new development plan of the Charge Breeder.