Regional Basic Professional Training Course in Korea

Regional Basic Professional Training Course (BPTC) on Nuclear Safety
strategy and that need to be carried out promptly after shutdown as part of the operational
phase of the facility in order to achieve a large reduction in radiological hazards.
Examples of these transitional operations are: removal of fuel, drainage of circuits,
cleaning and decontamination, conditioning of operational waste, and rationalization of
site services and infrastructure that may no longer be required during the
decommissioning phase (Fig. 1).
Fig. 1. Transitional decommissioning operations and typical durations for the ‘'safe enclosure’'
option (the chain line shows the ‘'immediate dismantling’' option).
These transitional operations are undertaken following procedures authorized by the
regulatory body. Even in cases where the decommissioning strategy has not yet been
decided at the time of permanent shutdown, shutdown and transitional operations need to
be accomplished safely to provide assurance that conditions at the facility are not a
potential threat to human health and safety or to protection of the environment. These
operations would involve utilization of key operational staff, whose experience and
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