2026 Annual Meeting
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Session Details

Oral presentationV. Nuclear Fuel Cycle and Nuclear Materials : 505-1  Radioactive Waste Management

[2A01-05]Debris and Oxide 1

Thu. Mar 12, 2026 9:30 AM - 10:50 AM JST
Thu. Mar 12, 2026 12:30 AM - 1:50 AM UTC
Room A(Kumamoto-jo Hall 4F Conference RoomA1)
Chair:Kazuyoshi Uruga(CRIEPI)
9:30 AM - 9:45 AM JST(12:30 AM - 12:45 AM UTC)

[2A01]Analysis of fuel debris obtained from inside the pedestal of Unit 2 of Fukushima Daiichi Nuclear Power Station(14)Distribution evaluation of crystalline phases and uranium chemical states in fuel debris using synchrotron radiation

*Masaaki Kobata1, Tohru Kobayashi1, Hajime Tanida1, Yoshihiro Okamoto1, Tatsuo Fukuda1, Toru Kitagaki1, Shingo Suzuki1, Koji Maeda1, Masato Mizokami2, Shinya Mizokami2 (1. JAEA, 2. TEPCO HD)
9:45 AM - 10:00 AM JST(12:45 AM - 1:00 AM UTC)

[2A02]Synthesis and Analysis of U-Zr-Fe-O System Simulated Fuel Debris in an Inert Atmosphere

*Shoei Moriyama1, Daisuke Akiyama1, Akira Kirishima1, Yuki Yokota1 (1. Tohoku Univ.)
10:00 AM - 10:15 AM JST(1:00 AM - 1:15 AM UTC)

[2A03]Oxidation behavior of oxygen-dissolved Zr powder

*Kenichi Hashizume1, Shunya Fukui1, Hirokazu Akada1, Aran Mituta1, Xiazhe Zhai1, Jin Miyawaki1, Kan Sakamoto2, Mutsumi Hirai3, Masato Mizokami3 (1. Kyushu Univ., 2. NFD, 3. TEPCO HD)
10:15 AM - 10:30 AM JST(1:15 AM - 1:30 AM UTC)

[2A04]Dissolution behavior of ceramic-solidified U–Fe–O system simulated fuel debris under low-pH conditions

*Takuma Koyama1, Takayuki Sasaki1, Taishi Kobayashi1, Daisuke Akiyama2, Akira Kirishima2 (1. KYOTO UNIVERSITY, 2. Tohoku Univ.)
10:30 AM - 10:45 AM JST(1:30 AM - 1:45 AM UTC)

[2A05]Study on leaching behavior of minor actinides from simulated fuel debris by the sequential extraction technique

*Akira Kirishima1, Sota Sunahara1, Kenta Yoshida1, Yuki Yokota1, Yoshihiro Okamoto2, Daisuke Akiyama1 (1. Tohoku Univ., 2. JAEA)
10:45 AM - 10:50 AM JST(1:45 AM - 1:50 AM UTC)

Time reserved for Chair

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