1. Department of Mechanics, Materials Science and Engineering, Wrocław University of Science and Technology, M. Smoluchowskiego 25, 50-370 Wrocław, Poland
2. Slovak University of Technology in Bratislava, Faculty of Electrical Engineering and Information Technology, Institute of Nuclear and Physical Engineering, Ilkovičova 3, 812 19 Bratislava, Slovakia
3. Department of Nuclear Reactors, Faculty of Nuclear Sciences and Physical Engineering, Czech Technical University in Prague, V Holešovičkách 2, 180 00 Prague, Czech Republic