Determination of backscattered neutrons/gammas from open beam port of a research reactor Anže Jazbec, Bor Kos, Vladimir Radulović, Klemen Ambrožič and Luka Snoj EPJ Web Conf., 225 (2020) 04032 Published online: 31 January 2020 DOI: 10.1051/epjconf/202022504032