Assessment of contamination distribution of "Monju", 4; Assessment of contamination from corrosion product and activation of fuel handling system

Hanaki, Shotaro  ; Kinoshita, Takuma*; Kawaguchi, Yotaro*; Kishimoto, Yasufumi*; Mashimo, Ryutaro; Hayashi, Hirokazu 

Ongoing evaluations in "Monju" aim to identify radioactive materials in the facility, reduce worker and public exposure and establish demolition methods. The assessment is categorized into activation contamination from structural material activation and secondary contamination from corrosion products produced by leaching. This summary provides progress of assessment of secondary contamination from corrosion product and the activation contamination assessment for fuel handling equipment specific to sodium-cooled fast reactors (SFRs).