Clearance operation on the turbine system in FUGEN

ふげんにおけるタービン設備のクリアランス測定について

山本 耕輔; 毛利 直人

Yamamoto, Kosuke; Mori, Naoto

Advanced Thermal Reactor "FUGEN" is the heavy water-moderated, boiling light water-cooled, pressure tube-type reactor. We have been dismantling the facilities based on the decommissioning program since 2008. Except for reactor core and heavy water system, the periphery system of FUGEN is similar to the BWR. Therefore, the results of decommissioning in FUGEN will be reflected to the decommissioning of commercial reactors in the future. It is important to reduce this low level waste as soon as possible, we have been tried to be able to apply some of them as a clearance system. Decontamination and clearance monitoring data for clearance were summarized and evaluated. Consequently, we confirmed progress in clearance operation the turbine systems smoothly In addition, we will obtain decontamination and measurement data in order to reflect them to the next own works and other decommissioning plants