Ion energy spread in laser-assisted atom probe tomography N. Sévelin-Radiguet, L. Arnoldi, F. Vurpillot, A. Normand, B. Deconihout and A. Vella EPL, 109 3 (2015) 37009 Published online: 19 February 2015 DOI: 10.1209/0295-5075/109/37009