High-contrast low-dose proton radiography of thin samples at the Tandetron accelerator Vaclav Olsansky, Carlos Granja, Cristina Oancea, Pavel Krist, Anna Mackova, Vladimir Havranek and Jiri Bila EPJ Web Conf., 261 (2022) 01005 Published online: 11 April 2022 DOI: 10.1051/epjconf/202226101005