RADIATION RISK DURING WATERBORNE STORAGE OF NON-DEFUELED REACTOR COMPARTMENT UNITS

摘要

The performed analysis has demonstrated that in a case of reactor compartment unit sinking accompanied by destruction of both strong hull and reactor installation the annual individual radiation risk due to work at the water area would not exceed 1.10~(-6) corresponding to the level of "negligible risk" according to the Russian Radiation Safety Standards (RSS-99). Individual annual damage expressed in "lost years of life" would not exceed 2.10~(-5) years provided that the time of NS waterborne storage prior to dismantlement would make up 5 years and after dismantlement 0 years (i.e., RU sinking would occur immediately after making up). If applying a more realistic option (10 years of waterborne storage prior to and after dismantlement), the value of this parameter would not exceed 1.10~(-6) years.