[1O04-07] Debris Treatment 2

[1O07] XAFS analyses of the uranium and zirconium mixed oxides for waste management of the fuel debris occurred by the Fukushima Daiichi NPP accident

*Akihiro Uehara¹, Daisuke Akiyama², Chiya Numako³, Shino Takeda⁴, Atsushi Ikeda⁵, Yasuko Terada⁶, Kiyofumi Nitta⁶, Toshiaki Ina⁶, Akira Kirishima², Nobuaki Sato² (1. Kyoto University Research Reactor Institute, 2. Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, 3. graduate school, Chiba University, 4. National Institutes for Quantum and Radiological Science and Technology, 5. Helmholtz-Zentrum Dresden-Rossendorf, 6. Japan Synchrotron Radiation Research Institute)

Keywords:fuel debris, uranium zirconium oxides, XAFS, XRD

1200 – 1600 ℃の温度領域においてウラン及びジルコニウム酸化物を酸化及び還元雰囲気において熱処理したのち、粉末X線回折及びX吸収微細構造によって反応生成物の局所構造及び相状態を解析した。