Source term model of radioactive liquid spills for actual decision support systems Yurii Kyrylenko, Iryna Kameneva, Oleksandr Popov, Andrii Iatsyshyn, Iryna Matvieieva, Valery Bliznyuk and Norbert Molitor E3S Web Conf., 280 (2021) 09001 Published online: 30 June 2021 DOI: 10.1051/e3sconf/202128009001