Study on volatile Cs compounds interaction with structural steel and metallic debris during the 1F accident

Pshenichnikov, A. ; 多木 寛 ; Zubekhina, B. ; Pham, V. H.  

Pshenichnikov, A.; Ogi, Hiroshi; Zubekhina, B.; Pham, V. H.

The current internal situation inside the Fukushima Dai-ichi Nuclear Power Station (1F) is largely unclear, because of the high dose rate produced by Cs radioactive isotopes. Large-scale investigations and decommissioning operations on the 1F site is still a challenge. Thus, an investigation of an interaction of CsOH with stainless steel 316L, simulated metallic debris from the CLADS-MADE tests seems helpful in clarifying the Cs behaviour during the 1F accident. The result of the research provides important background information on the mechanisms of clean up. Authors hope that by means of analysis of the Cs compounds, temperature distribution during the accident can be clarified and included into the debrisEye map jointly developed by JAEA. Based on this research the authors suggest potential perspective for volume reduction of the disposed nuclear waste at the 1F.