Helicon wave-generated plasmas for negative ion beams for fusion Ivo Furno, Riccardo Agnello, U. Fantz, Alan Howling, Remy Jacquier, Claudio Marini, Gennady Plyushchev, Philippe Guittienne and Alain Simonin EPJ Web Conf., 157 (2017) 03014 Published online: 23 October 2017 DOI: 10.1051/epjconf/201715703014