Calibration HPGe detector using IAEA-U source for CBRNe Debora Siqueira Nascimento, Andrea Chierici, Riccardo Ciolini, Stefano Chiappini, Francesco d’Errico and Massimo Chiappini Eur. Phys. J. Plus, 139 7 (2024) 654 Published online: 25 July 2024 DOI: 10.1140/epjp/s13360-024-05417-3