Prediction of External Exposure during Dismantling of Steam Generator

Martin Hornáček, Vladimír Nečas

Institute of Nuclear and Physical Engineering, Slovak University of Technology in Bratislava, Slovakia.

DOI: 10.4236/wjet.2015.33C023                

Abstract

The decommissioning of nuclear power plants is in the Slovak Republic an actual issue. In 2015 started the second decommissioning stage of nuclear power plant V1 in Jaslovské Bohunice. This stage involves the dismantling and segmentation of activated (reactor pressure vessel, reactor internals) and contaminated parts (steam generators, pressurizer). From this reason it is necessary to investigate the radiation situation in the vicinity of the component to be cut. The presented results show that during remote dismantling the exposure is small (compared with the fragmentation tasks). Moreover, when the pre-dismantling decontamination with decontamination factor of 100 is applied, the total collective effective dose is below the yearly limit of 20 mSv for workers.

Keywords

Steam Generator, Dismantling and Fragmentation, External Exposure

Conflicts of Interest

The authors declare no conflicts of interest.

References

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