TITLE:
Prediction of External Exposure during Dismantling of Steam Generator
AUTHORS:
Martin Hornáček, Vladimír Nečas
KEYWORDS:
Steam Generator, Dismantling and Fragmentation, External Exposure
JOURNAL NAME:
World Journal of Engineering and Technology,
Vol.3 No.3C,
October
22,
2015
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.