Oral presentation

[2J10-15] Decommissioning Technology for Fukushima

Thu. Mar 18, 2021 2:45 PM - 4:25 PM Room J (Zoom room 10)

Chair: Akihiko Nishimura (JAEA)

2:45 PM - 3:00 PM

[2J10] Completion of fall prevention and mitigation countermeasures of rubble

*Tomofumi Ryokai¹, Tetsushi Horibe¹, Yutaka Kometani¹, Masao Kataoka¹, Akitoshi Takemura¹ (1. HGNE)

3:00 PM - 3:15 PM

[2J11] Study on Grouting Materials for Large Scale Retrieval of Fuel Debris in decommissioning of Fukushima Daiichi NPP

*Kai Yokoyama¹, Yusuke Takahashi¹, Shunichi Suzuki¹ (1. UTokyo)

3:15 PM - 3:30 PM

[2J12] Analysis of particles generated by laser processing and development of their nuclide identification methodology (4)

(1)Production of fine particles from laser irradiated zirconia samples

*Hiroyuki Daido¹, Tomonori Yamada^2,3, Chikara Ito³, Masabumi Miyabe³, Takuya Shibata³, Hiroyuki Furukawa¹, Stephen Wells⁴, Shuichi Hasegawa⁴ (1. Institute for Laser Technology, 2. WERC, 3. JAEA, 4. UTokyo)

3:30 PM - 3:45 PM

[2J13] Analysis of particles generated by laser processing and development of their nuclide identification methodology (4)

(2)Development of high-resolution remote isotopic analysis

*Masabumi Miyabe¹, Tomonori Yamada^1,2, Takuya Shibata¹, Chikara Ito¹, Hiroyuki Daido³, Shuichi Hasegawa⁴ (1. Japan Atomic Energy Agency, 2. The Wakasawan Energy Research Center, 3. Institute for Laser Technology, 4. The University of Tokyo)

3:45 PM - 4:00 PM

[2J14] Analysis of particles generated by laser processing and development of their nuclide identification methodology (4)

(3)Development of sample introduction apparatus in spectroscopic analysis system for nuclinde identification of particles

*Yusuke Maruyama¹, Stephen Robert Wells¹, Yusuke Watanabe¹, Hiroyuki Daido³, Tomonori Yamada^2,4, Chikara Ito², Masabumi Miyabe², Takuya Shibata², Shuichi Hasegawa¹ (1. UTokyo, 2. JAEA, 3. ILT, 4. WERC)

4:00 PM - 4:15 PM

[2J15] Analysis of particles generated by laser processing and development of their nuclide identification methodology (4)

(4)Progress in a Spectroscopic Technique of Laser Based Analysis and Nuclide Identification of Fine Particle Debris

*Stephen Robert Wells¹, Yusuke Maruyama¹, Yusuke Watanabe¹, Hiroyuki Daido², Tomonori Yamada^3,4, Chikara Ito³, Masabumi Miyabe³, Takuya Shibata³, Shuichi Hasegawa¹ (1. UTokyo, 2. Inst. Laser Tech., 3. JAEA, 4. WERC)

Time reserved for Chair （4:15 PM - 4:25 PM）

Oral presentation

[2J16-19] Dismantling, Decontamination & Evaluatin Technology

Thu. Mar 18, 2021 4:25 PM - 5:30 PM Room J (Zoom room 10)

Chair: Daisuke Kawasaki (Univ. of Fukui)

4:25 PM - 4:40 PM

[2J16] Fundamental Study on Mechanism of Blasting Decontamination Device for Small Diameter Pipe (Part 3)

*Sota Yamamoto¹, Seigo Kai¹, Hideharu Takahashi¹, Hayato Taniguchi², Akihiko Kawashima², Hiroshi Takahashi³, Hiroshige Kikura¹ (1. Tokyo Tech, 2. Shintokogio, 3. Fuji Furukawa E&C)

4:40 PM - 4:55 PM

[2J17] Characterization of radioactive waste for decommissioning of a reference PWR

*Hiroaki Sato¹, Yusaku Chiba¹, Ken-ichi Tanaka², Naoko Watanabe¹, Satoshi Yanagihara³, Tamotsu Kozaki¹, Shin-ichiro Uematsu¹ (1. Hokkaido Univ., 2. IAE, 3. Univ. of Fukui)

4:55 PM - 5:10 PM

[2J18] Study on group structure in DORT calculations for decommissioning activation estimation

*Chikara Konno¹, Mami Kochiyama¹ (1. JAEA)

5:10 PM - 5:25 PM

[2J19] Research on methods for reducing risk factors for decommissioning

*Akihiko Nishimura^1,4, Akio Kanai², Minoru Yoshida³ (1. JAEA, 2. Keio Univ., 3. HAKUSAN, 4. Fukui Univ.)

Time reserved for Chair （5:25 PM - 5:30 PM）

Sessions

V. Nuclear Fuel Cycle and Nuclear Materials » 505-3 Decommissioning Technology of Nuclear Facilities