2025 Fall Meeting
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Session Details

Oral presentationV. Nuclear Fuel Cycle and Nuclear Materials : 505-3 Decommissioning Technology of Nuclear Facilities

[2D18-24]Fuel Debris 4

Thu. Sep 11, 2025 4:45 PM - 6:45 PM JST
Thu. Sep 11, 2025 7:45 AM - 9:45 AM UTC
Room D(Kitakyushu International Conference Center2F Meeting Room 21)
Chair:Kazuya Idemitsu(Tohoku Univ.)
4:45 PM - 5:00 PM JST(7:45 AM - 8:00 AM UTC)

[2D18]Assessment of dust dispersion data for future safety analysis of Fukushima Daiichi fuel debris retrieval(24) Small-scale fabrication and characterization of as-melted fuel debris pieces containing uranium

*Masahide Takano1, Ayako Sudo1, Kinya Nakamura2, Tadafumi Koyama2, Koichi Uozumi2, Taizo Kanai2, Shun Kanagawa2, Yuichi Iwata3, Fumio Totsuka3, Kazutaka Mogi3 (1. JAEA, 2. CRIEPI, 3. TEPCO HD)
Comment()
5:00 PM - 5:15 PM JST(8:00 AM - 8:15 AM UTC)

[2D19]Assessment of dust dispersion data for future safety analysis of Fukushima Daiichi fuel debris retrieval(25)Dust dispersion behavior of small-scale uranium-containing fuel debris simulants during cutting with disk cutter

*Yuji Kitsunai1, Atsushi Ouchi1, Chisato Sakagushi1, Akihiro Suzuki1, Masahide Takano2, Kinya Nakamura3, Masafumi Koyama3, Taizo Kanai3, Koichi Uozumi3, Yuichi Iwata4 (1. NFD, 2. JAEA, 3. CRIEPI, 4. TEPCO HD)
Comment()
5:15 PM - 5:30 PM JST(8:15 AM - 8:30 AM UTC)

[2D20]Assessment of dust dispersion data for future safety analysis of Fukushima Daiichi fuel debris retrieval(26) Dust dispersion behavior of kg-scale uranium-containing fuel debris simulants during cutting with a disk cutter

*Shun Kanagawa1, Kinya Nakamura1, Tadafumi Koyama1, Taizo Kanai1, Koichi Uozumi1, Yuichi Iwata2, Daishuke Yamauchi2, Yvan Lallot3, Christophe Journeau4, Emmanuel PORCHERON5 (1. CRIEPI, 2. TEPCO HD, 3. ONET, 4. CEA, 5. ASNR)
Comment()
5:30 PM - 5:45 PM JST(8:30 AM - 8:45 AM UTC)

[2D21]Assessment of dust dispersion data for future safety analysis of Fukushima Daiichi fuel debris retrieval(27) Dust dispersion behavior of uranium-containing Ex-vessel fuel debris during cutting with disk cutter

*Kinya Nakamura1, Tadafumi Koyama1, Taizo Kanai1, Koichi Uozumi1, Shun Kanagawa1, Yuichi Iwata2, Fumio Totsuka2, Kazutaka Mogi2, Daisuke Yamauchi2, Takeshi Honda2 (1. CRIEPI, 2. TEPCO HD)
Comment()
5:45 PM - 6:00 PM JST(8:45 AM - 9:00 AM UTC)

[2D22]Assessment of dust dispersion data for future safety analysis of Fukushima Daiichi fuel debris retrieval(28) Assessment of dust dispersion data measured in this project for application to future safety analysis

*Tadafumi Koyama1, Koichi Uozumi1, Kinya Nakamura1, Taizo Kanai1, Shun Kanagawa1, MIchiya Sasaki1, Yuichi Iwata2, Fumio Totsuka2, Kazutaka Mogi2, Daisuke Yamauchi2 (1. Central Research Institute of Electric Power Industry, 2. TEPCO Holdings)
Comment()
6:00 PM - 6:15 PM JST(9:00 AM - 9:15 AM UTC)

[2D23]Assessment of dust dispersion data for future safety analysis of Fukushima Daiichi fuel debris retrieval(29) Development of a numerical simulation method for dust dispersion behavior under wet conditions

*Tatsuya Fukuyama1, Kenta Inagaki1, Tadafumi Koyama1, Taizo Kanai1, Koichi Uozumi1, Kinya Nakamura1, Shun Kanagawa1, Yuichi Iwata2, Fumio Totsuka2, Kazutaka Mogi2 (1. CRIEPI, 2. TEPCO HD)
Comment()
6:15 PM - 6:30 PM JST(9:15 AM - 9:30 AM UTC)

[2D24]Assessment of dust dispersion data for future safety analysis of Fukushima Daiichi fuel debris retrieval(30) Development of the dose estimation methods for the safety assessment of fuel debris retrieval

*Michiya Sasaki1, Tadafumi Koyama1, Koichi Uozumi1, Kinya Nakamura1, Taizo Kanai1, Shun Kanagawa1, Yuichi Iwata2, Fumio Totsuka2, Kazutaka Mogi2, Kuniaki Nabatame3 (1. CRIEPI, 2. TEPCO HD, 3. Hitachi GE Vernova)
Comment()
6:30 PM - 6:45 PM JST(9:30 AM - 9:45 AM UTC)

Time reserved for Chair

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