1. The interested reader can find more information on www.iter.org.
2. G. Serianni et al., ‘SPIDER in the roadmap of the ITER neutral beams’, Fusion Eng. Des., 146 Part B (2019) 2539-2546, doi.org/10.1016/j.fusengdes.2019.04.036.
3. D. Wünderlich, R. Riedl, F. Bonomo, I. Mario, U. Fantz, B. Heinemann, W. Kraus and the NNBI Team, Achievement of ITER-relevant accelerated negative hydrogen ion current densities over 1000 s at the ELISE test facility, Nucl. Fusion 59 (2019) 084001.
4. Design of neutral beam system for ITER-FEAT;Inoue;Fusion Eng. Des.,2001
5. Influence of incidence angle on hydrogen and deuterium atoms interaction with a cesiated surface;Rutigliano;Surf. Sci.,2020