Analysis of the radiological contamination of the RBMK-1500 reactor low salted water system

Analysis showed that there is significant difference of contamination levels among LSWS components. LSWS activity is lower than Main Circulation Circuit (MCC) and Purification and Cooling System (PCS) subsystems activity. Activity variation for LSWS components is smaller compared to MCC and PCS. Nuclides that mostly contribute to contamination in deposits of LSWS are corrosion nuclides as in MCC and PCS.