D. Bresteau

TL;DR: In this paper, a photoneutralized neutral beam (NB) system for the future fusion reactor (DEMO Tokamak) has been proposed, where a high power photon flux generated within a Fabry-Perot cavity will overlap, cross and partially photodetach the intense negative ion beam accelerated at high energy (1 or 2 MeV).

TL;DR: In this paper, a new ion source concept (Cybele source) which is based on a magnetized plasma column is presented. But the main challenge of this new injector concept is the achievement of a very high power photon flux which could be provided by 3MWFabry-Perot optical cavities implanted along the 1 MeVD−============ beam in the neutralizer stage.

TL;DR: An unprecedented, greater than 50%, photodetachment rate is obtained on a H- beam in the continuous regime, and the technique can be relied on to design novel D0 injectors, for fusion reactors, with a much better efficiency than the molecular-collision based injectors presently developed for ITER.