Radiation-detection methods to counter radiological threats⋆Ken’ichi Tsuchiya, Kenji Kurosawa, Norimitsu Akiba, Hidetoshi Kakuda, Daisuke Imoto, Manato Hirabayashi and Kenro KurokiEur. Phys. J. Plus, 133 7 (2018) 266DOI: https://doi.org/10.1140/epjp/i2018-12146-3