[2B20-23] Debris Treatment and Spent Nuclear Fuel Treatment

[2B21] Research on the stability of fuel debris consisting of oxides and alloys

(2)Analysis of chemical state of U-Fe-Cr-Ni oxide by spectroscopic method

*Masayuki WATANABE¹, Yuta KUMAGAI¹, Ryoji KUSAKA¹, Takumi YOMOGIDA¹, Masami NAKADA¹, Akira KIRISHIMA², Daisuke AKIYAMA², Nobuaki SATO², Takayuki SASAKI³ (1. JAEA, 2. Tohoku Univ., 3. Kyoto Univ.)

Keywords:Fuel debris, Fukushima Daiichi NPP Accident, debris consisting of oxides and alloys

In this presentation, we will report the results related with the chemical states on the surface of the simulated fuel debris which is synthesized from uranium and stainless steel and single component of uranium oxides are identified by fluorescence microscopy, raman microscopy and Mössbauer spectroscopy.