[1]Directorate of Safety Surveillance, State Enterprise National Nuclear Energy Generating Company "Energoatom ", Kyiv, 01032,UKRAINE;
[2]Radiation Safety Department, Zaporizhzhya NPP, Energodar, 71500, UKRAINE;
[3]Radiation Safety Department, Rivne NPP, Varash, 34400, UKRAINE;
[4]Radiation Safety Department, South-Ukrainian NPP, Yuzhnoukrainsk, 55000, UKRAINE;
[5]Radiation Safety Department,, Khmelnytska NPP, Netishin, 30100, UKRAINE;