Decontamination of the Reactor Pressure Vessel and Further Internals and Auxiliary Systems in the German Boiling Water Reactor Isar-1

摘要

The German nuclear power plant ISAR 1 (KKI 1), a 878 MWe boiling water reactor of KWU design, was shut down on March 17th, 2011. With the objective to minimize the plants activity inventory accompanied by the reduction of contact dose rates of systems and components the project "decontamination of the RPV incl. steam dryer and water separator and the connected auxiliary systems" was implemented in the first quarter of 2015. One major focus within the project was the specific in-situ decontamination of the steam dryer.