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AbstractAbstract
[en] The precise assessment of the activities deposited on the Primary Circuit equipment is of essential significance for the dose intake by the personnel performing decommissioning activities. The comparisons between the calculated values and the dose rate values measured on the surface of the MCP in 2011 present a satisfactory good coincidence. Therefore the radiation source term calculated by the use of MIGA-RT can be considered as a reliable (relevant) value for Units 3 and 4. From the performed assessments of the predicted dose intake during the activities for dismantling of equipment in the Reactor Building is seen the considerable reduction of the doses due to the natural radioactive decay of the present nuclides. These results show that in the foreseen schedule of dismantling activities in reactor rooms of units 1 and 4 the complete decontamination might not necessary at all cost. This conclusion needs to be confirmed after additional analyses and the forthcoming radiological inventory characterization of the Primary Circuit pipelines and the connected equipment of units 3 and 4
Primary Subject
Source
2011; 5 p; 9. International conference on WWER fuel performance, modelling and experimental support; Helena Resort (Bulgaria); 17-24 Sep 2011; 6 figs., 2 tabs.
Record Type
Miscellaneous
Literature Type
Conference
Report Number
Country of publication
AMERICIUM 241, CESIUM 137, COBALT 60, DECOMMISSIONING, DOSE RATES, GAMMA RADIATION, IRON 55, KOZLODUY-1 REACTOR, KOZLODUY-2 REACTOR, KOZLODUY-3 REACTOR, KOZLODUY-4 REACTOR, NEUTRON FLUX, NICKEL 63, NUCLEAR DECAY, OCCUPATIONAL EXPOSURE, PLUTONIUM 241, POINT KERNELS, PRIMARY COOLANT CIRCUITS, RADIATION DOSES, STRONTIUM 90
ACTINIDE NUCLEI, ALKALINE EARTH ISOTOPES, ALPHA DECAY RADIOISOTOPES, AMERICIUM ISOTOPES, BETA DECAY RADIOISOTOPES, BETA-MINUS DECAY RADIOISOTOPES, CESIUM ISOTOPES, COBALT ISOTOPES, COOLING SYSTEMS, DECAY, DOSES, ELECTROMAGNETIC RADIATION, ELECTRON CAPTURE RADIOISOTOPES, ENERGY SYSTEMS, ENRICHED URANIUM REACTORS, EVEN-EVEN NUCLEI, EVEN-ODD NUCLEI, HEAVY NUCLEI, INTERMEDIATE MASS NUCLEI, INTERNAL CONVERSION RADIOISOTOPES, IONIZING RADIATIONS, IRON ISOTOPES, ISOMERIC TRANSITION ISOTOPES, ISOTOPES, KERNELS, MINUTES LIVING RADIOISOTOPES, NICKEL ISOTOPES, NUCLEI, ODD-EVEN NUCLEI, ODD-ODD NUCLEI, PLUTONIUM ISOTOPES, POWER REACTORS, PWR TYPE REACTORS, RADIATION FLUX, RADIATIONS, RADIOISOTOPES, REACTOR COMPONENTS, REACTOR COOLING SYSTEMS, REACTORS, SPONTANEOUS FISSION RADIOISOTOPES, STRONTIUM ISOTOPES, THERMAL REACTORS, WATER COOLED REACTORS, WATER MODERATED REACTORS, WWER TYPE REACTORS, YEARS LIVING RADIOISOTOPES
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