Evaluation of water equivalent thicknesses using the IEM-CSIC scanner prototype Amanda Nathali Nerio, José Antonio Briz, María José García Borge, Enrique Nácher, Olof Tengblad, Ángel Perea and Vicente García Távora EPJ Web of Conf., 290 (2023) 08004 Published online: 08 December 2023 DOI: 10.1051/epjconf/202329008004