A low-cost radiation detection system to monitor radioactive environments by unmanned vehicles Andrea Chierici, Andrea Malizia, Daniele di Giovanni, Francesca Fumian, Luca Martellucci, Pasquale Gaudio and Francesco d’Errico Eur. Phys. J. Plus, 136 3 (2021) 314 Published online: 12 March 2021 DOI: 10.1140/epjp/s13360-021-01276-4