Bragg-curve imaging of 7 MeV protons in a lithium fluoride crystal by fluorescence microscopy of colour centresE. Nichelatti, M. Piccinini, A. Ampollini, L. Picardi, C. Ronsivalle, F. Bonfigli, M. A. Vincenti and R. M. MonterealiEPL, 120 5 (2017) 56003DOI: https://doi.org/10.1209/0295-5075/120/56003