Since more than 20 years, CEA Saclay developed and built high intensity ion sources for accelerators, mainly heated by the electronic cyclotronic resonnant mechanism (ECR). The experience of the CEA is well recognize worldwide, our group was chosen to built ion sources for different facilities: IFMIF/LIPAc (Japan), SPIRAL2 facility (France) and FAIR in Germany.
High performances, in particular the high reliability of our ions sources made them essential for futur high intensity neutron source for fusion reactor material research, or experiences in neutron diffraction or cancer cure with the boron neutron capture therapy (BNCT).
The aim of this thesis is to provide us to a better understanding of the physical phenomena inside the ion sources, as the microwave-plasma interaction/coupling, or the plasma confinement. The primary goal is to optimize beam quality for ions sources, in term of stability in time, in homogeneity and purity but also to increase the extracted current far beyond actual performances. Compact ion sources with a better efficiency are also expected.
This ambitious program could be only validated with various experimental measurements at Saclay on a plasma reactor or on an extracted intense light ion beam with dedicated diagnostics.
Mastering high intensity beam production is the key of the future. Those innovative ion sources will play a large part in maintaining CEA leadership in the field of light ion sources and also in particles accelerators.