Helium behaviour in implanted boron carbide Vianney Motte, Dominique Gosset, Sandrine Miro, Sylvie Doriot, Suzy Surblé and Nathalie Moncoffre EPJ Nuclear Sci. Technol., 1 (2015) 16 Published online: 16 December 2015 DOI: 10.1051/epjn/e2015-50007-5