Structural and chemical alteration of crystalline olivine under low energy He+ irradiationK. Demyk, Ph. Carrez, H. Leroux, P. Cordier, A. P. Jones, J. Borg, E. Quirico, P. I. Raynal and L. d'HendecourtA&A, 368 3 (2001) L38-L41DOI: https://doi.org/10.1051/0004-6361:20010208