Analysis of Unsteady Behaviour of Natural Circulation Helium LoopMatej Vach, Branislav Knížat, Marek Mlkvik, Róbert Olšiak, František Urban, František Ridzoň and Peter MlynárMATEC Web Conf., 328 (2020) 03009DOI: https://doi.org/10.1051/matecconf/202032803009