Oral presentation

[1D01-08] Standards Related to Decommissioning Planning

Wed. Sep 13, 2017 10:00 AM - 12:10 PM Room D (B31 - B3 Block)

Chair:Koichi Kitamura (JAEA)

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10:00 AM - 10:15 AM

[1D01] Improvement of standards related to decommissioning planning

(1)Summary of Activities

*Akio Tamura¹ (1. JANSI)

10:15 AM - 10:30 AM

[1D02] Improvement of standards related to decommissioning planning

(2)Addressing Establishment of General Safety Requirements for Decommissioning of Facilities

*Yoshihiko Horikawa³, Akio Tamura¹, Ken-ichi Tanaka², Kazuma Mizukoshi³, Yusuke Shimizu³, Seiichi Kudo⁴, Hirofumi Kadobayashi⁴, Hirokazu Minato⁵, Muneyuki Nakada⁵, Noboru Kurokawa⁶ (1. JANSI, 2. IAE, 3. NEL, 4. MHI NS eng, 5. Hitachi-GE, 6. MHI)

10:30 AM - 10:45 AM

[1D03] Improvement of standards related to decommissioning planning

(3)Correspondence of IAEA Requirements and Planning Standard

*Kazuo Mizukoshi¹ (1. NEL)

10:45 AM - 11:00 AM

[1D04] Improvement of standards related to decommissioning planning

(4)Concept of safety assessment of decommissioning

*Seiichi Kudo¹ (1. MHINSeng)

11:00 AM - 11:15 AM

[1D05] Improvement of standards related to decommissioning planning

(5)Study on classification of facility importance of decommissioning plant

*Hirofumi Kadobayashi¹ (1. MHINSeng)

11:15 AM - 11:30 AM

[1D06] Improvement of standards related to decommissioning planning

(6)For decommissioning study on abnormal event scenario

*Muneyuki Nakada¹ (1. HitachiGE)

11:30 AM - 11:45 AM

[1D07] Improvement of standards related to decommissioning planning

(7)Guidelines concerning radiological characterization of facilities

*Ken-ichi Tanaka¹ (1. IAE)

11:45 AM - 12:00 PM

[1D08] Improvement of standards related to decommissioning planning

(8)Guidelines concerning the characterization survey of facilities

*Yusuke Shimizu¹ (1. NEL)

Time reserved for Chair （12:00 PM - 12:10 PM）

Oral presentation

[1D09-16] Decontamination & Dismantling Technology

Wed. Sep 13, 2017 2:45 PM - 4:50 PM Room D (B31 - B3 Block)

Chair:Nobutake Horiuchi (MMC)

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2:45 PM - 3:00 PM

[1D09] Development of the Electrolytic Decontamination Machine for Pipes

(1)Basic Characteristics of the Machine

*Katsuya Sasaki¹, Hidehiko Maehata¹, Akira Maruyama², Akira Matsushima³, Kenta Aratani³, Hiroaki Takiya³, Yuto Awatani³ (1. Hitachi Zosen Corporation, 2. Ultra Finish Technology Co.,Ltd., 3. JAEA)

3:00 PM - 3:15 PM

[1D10] Development of the Electrolytic Decontamination Machine for Pipes

(2)Result of Decontamination Test

*Kenta Aratani¹, Akira Matsushima¹, Hiroaki Takiya¹, Yuto Awatani¹, Katsuya Sasaki², Hidehiko Maehata², Akira Maruyama³ (1. Japan Atomic Energy Agency, 2. Hitachi Zosen Corporation, 3. Ultra Finish Technology Co., Ltd.)

3:15 PM - 3:30 PM

[1D11] Decontamination method for inside of small diameter piping waste(part2)

*Daisuke TSUCHIDA¹, Hiroshi TAKAHASHI² (1. JAEA, 2. Fuji Furukawa Engineering & Construction Corp.)

3:30 PM - 3:45 PM

[1D12] Design Consideration on the range extender and functionality expansion of the fully-automated laser decontamination device

*Eisuke John Minehara¹, Hisashi Imai², Atsuo Yamada² (1. LDD Corporation, 2. HAZAMA ANDO CORPORATION)

3:45 PM - 4:00 PM

[1D13] Irradiate energy dependence for surface state of concrete by laser decontamination

*Ryuichiro Yamagishi¹ (1. WERC)

4:00 PM - 4:15 PM

[1D14] Application of the laser cutting technology in Reactor facility

*Yasuyuki Nakamura¹, Haruhiko Kadowaki¹, Hiroki Iwai¹, Goro Soejima¹, Hiroyuki Mizui¹, Kazuya Sano¹ (1. JAEA)

4:15 PM - 4:30 PM

[1D15] Study on the method for cutting pipes in high radiation area for the isolation of reactor core from other systems in FUGEN

*Hiroaki Takiya¹, Akira Matsushima¹, Masahiro Ishiyama¹, Kazuhiro Okuzawa¹ (1. Japan Atomic Energy Agency)

4:30 PM - 4:45 PM

[1D16] In-situ dismantling of the liquid waste storage tank LV-1 in JRTF

(9)Cutting of water jacket and legs of the LV-1 tank

*Yuta Yokozuka¹, Ryuji Mimura¹, Toshiki Fujikura¹, Yoshinori Muraguchi¹, Koichi Nemoto¹, Shigeo Shida¹ (1. JAEA)

Time reserved for Chair （4:45 PM - 4:50 PM）

Oral presentation

[1D17-21] Other Decommissioning Technology

Wed. Sep 13, 2017 4:50 PM - 6:10 PM Room D (B31 - B3 Block)

Chair:Eisuke John Minehara (LDD)

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4:50 PM - 5:05 PM

[1D17] Detoxification Treatment of Torus Water for Tsuruga Unit1

(1)Detoxification Treatment Method of Torus Water

*Miyuki Arai¹, Hiromi Aoi¹, Yumi Yaita¹, Yuki Inoue¹, Takahiro Matsuda², Hirofumi Noguchi² (1. Toshiba Corporation, 2. The Japan Atomic Power Company)

5:05 PM - 5:20 PM

[1D18] Detoxification Treatment of Torus Water for Tsuruga Unit1

(2)Optimization of water treatment condition with considering fluctuation of chemical concentration

*Yuki Inoue¹, Yumi Yaita¹, Miyuki Arai¹, Hiromi Aoi¹, Takahiro Matsuda², Hirofumi Noguchi² (1. Toshiba Corporation , 2. The Japan Atomic Power Company)

5:20 PM - 5:35 PM

[1D19] Operation of installation of air conditioner during decommissioning phase.

Manabu Ohkubo¹, *Ryo Shimizu¹, Masakazu Hatori¹, Takanori Kobayashi¹, Ryoichi Uekura¹ (1. JAEA Monju)

5:35 PM - 5:50 PM

[1D20] Development of Technology for Nonproliferation of B₄C Powder in Used Control Rod

(1)Study of Cutting Technology by Combination of Press Working and Underwater Plasma Fusing

*Makoto Tatemura¹, Tomohiro Endo², Masatoshi Itagaki², Yoshiki Kurosawa³, Hideki Yamai², Yutaka Kometani², Minoru Masuda² (1. Hitachi, 2. Hitach-GE, 3. Hitachi-Urban)

5:50 PM - 6:05 PM

[1D21] Technology survey on in-situ simple γ-ray measurement

*Goro Soejima¹, Haruhiko Kadowaki¹, Hiroki Iwai¹, Yasuyuki Nakamura¹, Hiroyuki Mizui¹, Kazuya Sano¹ (1. JAEA)

Time reserved for Chair （6:05 PM - 6:10 PM）

Oral presentation

[2D01-09] System Development and Evaluation

Thu. Sep 14, 2017 9:40 AM - 12:00 PM Room D (B31 - B3 Block)

Chair:Ken-Ichi Tanaka (IAE)

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9:40 AM - 9:55 AM

[2D01] Experimental Evaluation of Estimation method of Radioactive Concentration

*Yasushi Nagumo¹, Takahiro Tadokoro¹, Yuichiro Ueno¹, Toshihisa Tsukiyama², Hideki Yamai², Takashi Kitahara² (1. Hitachi, Ltd., Research & Development Group, Center for Technology Innovation-Energy, 2. Hitachi-GE Nuclear Energy, Ltd.)

9:55 AM - 10:10 AM

[2D02] Comparison of Arising Radioactive Wastes among Decommissioning Scenarios For a Small Research Reactor

*Anggoro Septilarso¹, Daisuke Kawasaki¹, Satoshi Yanagihara¹ (1. University of Fukui)

10:10 AM - 10:25 AM

[2D03] Study on concrete permeation calculation for decommissioning (2)

Calculation of composition sensitivity coefficient

*Riku Nakamura¹, Ken-ichi Tanaka^2,1, Satoshi Chiba¹ (1. Tokyo Tech, 2. The Institute of Applied Energy)

10:25 AM - 10:40 AM

[2D04] Development of 3-dimensional induced activity evaluation method for PWR

*Kazuro Hiromoto¹, Tomohiro Ogata¹, Takashi Muramatsu^1,3, Shouzou Komori² (1. Mitsubishi Heavy Industries, Ltd., 2. Kyushu Electric Power Co., Inc., 3. Japan Nuclear Safety Institute)

10:40 AM - 10:55 AM

[2D05] Evaluation of cross contamination in decontaminating concrete plate contaminated with radioactivity

*Kohei Urabe¹, Kazuyuki Torii¹, Motoyuki Asada¹, Norikazu Kinoshita¹ (1. Shimizu Corporation)

10:55 AM - 11:10 AM

[2D06] Development of manpower estimation models for decommissioning activities

*Ryota Sugimoto¹, Daisuke Kawasaki¹, Satoshi Yanagihara¹ (1. University of Fukui)

11:10 AM - 11:25 AM

[2D07] Development of dismantling sequence generation system based on 3D model components of machine

Development of decommissioning engineering technology

*Atsuko Enomoto¹, Hiroshi Seki¹, Takuya Yoshida¹, Mitsutaka Imamura², Takashi Kitahara², Junya Tahata² (1. Hitachi, Ltd., Research & Development, 2. Hitachi-GE Nuclear Energy, Ltd.)

11:25 AM - 11:40 AM

[2D08] Integration of Knowledge Management Support System for the Decommissioning of Nuclear Facilities

(8)The Outcomes of Knowledge Management Support System

*Yasuyoshi TARUTA^1,2, Yasuaki Kato², Satoshi Yanagihara¹, Yukihiro Iguchi^1,2, Masashi Tezuka², Yuya Koda², Koichi Kitamura², Riichiro Mizoguchi³ (1. Univ. Fukui, 2. JAEA, 3. JAIST)

11:40 AM - 11:55 AM

[2D09] A study on Evaluation of project management data in "Fugen" decommissioning

*Yuya kouda¹, Masashi tezuka¹, Satoshi yanagihara² (1. Fugen Decommissioning Engineering center, 2. University of Fukui)

Time reserved for Chair （11:55 AM - 12:00 PM）

Oral presentation

[2D10-15] Development for Fuel Debris Treatment 1

Thu. Sep 14, 2017 2:45 PM - 4:20 PM Room D (B31 - B3 Block)

Chair:Satoshi Yanagihara (Fukui Univ.)

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2:45 PM - 3:00 PM

[2D10] Development of Fuel Debris Canister

(1)Outline of Collection, Transfer and Storage of Fuel Debris

*Toshihiro Matsuoka¹, Hideaki Uchiyama², Chihiro Narazaki³, Manabu Ueno⁴ (1. Mitsubishi Heavy Industries, Ltd., 2. International Research Institute for Nuclear Decommissioning, 3. TOSHIBA CORPORATION, 4. Hitachi-GE Nuclear Energy, Ltd.)

3:00 PM - 3:15 PM

[2D11] Development of Fuel Debris Canister

(2)Specification of Fuel Debris Canister

*Yasuhiro Tomiita¹, Hideaki Uchiyama², Toshihiro Matsuoka¹, Chihiro Narazaki³, Manabu Ueno⁴ (1. Mitsubishi Heavy Industries, Ltd., 2. International Research Institute for Nuclear Decommissioning, 3. TOSHIBA CORPORATION, 4. Hitachi-GE Nuclear Energy, Ltd.)

3:15 PM - 3:30 PM

[2D12] Development of Fuel Debris Canister

(3)Evaluation of Fuel Debris Condition in a Canister for Criticality Safety

*Seiji Yamamoto³, Hideaki Uchiyama¹, Toshihiro Matsuoka², Tetsuro Takeshita³, Chihiro Narazaki³, Yoshiki Ida³, Manabu Ueno⁴ (1. International Research Institute for Nuclear Decommissioning, 2. International Research Institute for Nuclear Decommissioning / Mitsubishi Heavy Industries, Ltd., 3. International Research Institute for Nuclear Decommissioning / TOSHIBA CORPORATION, 4. International Research Institute for Nuclear Decommissioning / Hitachi-GE Nuclear Energy, Ltd.)

3:30 PM - 3:45 PM

[2D13] Development of Fuel Debris Canister

(4)Drop Test of Canister

*Yoshiharu Kikuchi⁴, Hideaki Uchiyama¹, Toshihiro Matsuoka², Chihiro Narazaki³, Nodoka Miyamoto⁴, Kazuma Hirosaka⁴, Noboru Saito⁴, Manabu Ueno⁴ (1. International Research Institute for Nuclear Decommissioning, 2. Mitsubishi Heavy Industries, Ltd., 3. TOSHIBA CORPORATION, 4. Hitachi-GE Nuclear Energy, Ltd.)

3:45 PM - 4:00 PM

[2D14] Development of Fuel Debris Canister

(5)Verification Test of Impact Limiter

*Noboru Saito⁴, Hideaki Uchiyama¹, Toshihiro Matsuoka², Chihiro Narazaki³, Nodoka Miyamoto⁴, Kazuma Hirosaka⁴, Yoshiharu Kikuchi⁴, Manabu Ueno⁴ (1. International Research Institute for Nuclear Decommissioning, 2. Mitsubishi Heavy Industries, Ltd., 3. TOSHIBA CORPORATION, 4. Hitachi-GE Nuclear Energy, Ltd.)

4:00 PM - 4:15 PM

[2D15] Development of Fuel Debris Canister

(6)Evaluation of Drop Test by Static Numerical Simulation

*Kazuma Hirosaka⁴, Hideaki Uchiyama¹, Toshihiro Matsuoka², Chihiro Narazaki³, Nodoka Miyamoto⁴, Noboru Saito⁴, Yoshiharu Kikuchi⁴, Manabu Ueno⁴ (1. International Research Institute for Nuclear Decommissioning, 2. Mitsubishi Heavy Industries, Ltd., 3. TOSHIBA CORPORATION, 4. Hitachi-GE Nuclear Energy, Ltd.)

Time reserved for Chair （4:15 PM - 4:20 PM）

Oral presentation

[2D16-23] Development for Fuel Debris Treatment 2

Thu. Sep 14, 2017 4:20 PM - 6:30 PM Room D (B31 - B3 Block)

Chair:Hiroshi Masaki (IRID/TOSHIBA)

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4:20 PM - 4:35 PM

[2D16] Development of Fuel Debris Canister

(7)Measurement of Hydrogen Production Amount by Gamma-Radiolysis of Water

*Nodoka Miyamoto⁴, Hideaki Uchiyama¹, Toshihiro Matsuoka², Chihiro Narazaki³, Yoshiharu Kikuchi⁴, Manabu Ueno⁴, Yoichi Wada⁴ (1. International Research Institute for Nuclear Decommissioning, 2. Mitsubishi Heavy Industries, Ltd., 3. TOSHIBA CORPORATION, 4. Hitachi-GE Nuclear Energy, Ltd.)

4:35 PM - 4:50 PM

[2D17] Development of Fuel Debris Canister

(8)Analytical Evaluation of Hydrogen Production Amount by Gamma-Radiolysis of Water

*Yoichi Wada⁴, Hideaki Uchiyama¹, Toshihiro Matsuoka², Chihiro Narazaki³, Nodoka Miyamoto⁴, Yoshiharu Kikuchi⁴, Manabu Ueno⁴ (1. International Research Institute for Nuclear Decommissioning , 2. Mitsubishi Heavy Industries, Ltd., 3. TOSHIBA CORPORATION, 4. Hitachi-GE Nuclear Energy, Ltd.)

4:50 PM - 5:05 PM

[2D18] Development of Fuel Debris Canister

(9)Measurement of Quantity of Hydrogen by Radiolysis of Concrete Component Water under γ-Ray Irradiation

*Taisuke Tsukamoto², Hideaki Uchiyama¹, Toshihiro Matsuoka², Yasuhiro Tomiita², Takayuki Hase², Chihiro Narazaki³, Manabu Ueno⁴ (1. International Research Institute for Nuclear Decommissioning, 2. Mitsubishi Heavy Industries, Ltd., 3. TOSHIBA CORPORATION, 4. Hitachi-GE Nuclear Energy, Ltd.)

5:05 PM - 5:20 PM

[2D19] Development of Fuel Debris Canister

(10)Examination of Corrosion Resistance for Canister Candidate Material

*Kosuke Inaba¹, Hideaki Uchiyama², Ikumasa Koshiro¹, Kenji Sato¹, Toshihiro Matsuoka¹, Yasuhiro Tomiita¹, Chihiro Narazaki³, Manabu Ueno⁴ (1. Mitsubishi Heavy Industries, Ltd., 2. International Research Institute for Nuclear Decommissioning, 3. TOSHIBA CORPORATION, 4. Hitachi-GE Nuclear Energy, Ltd.)

5:20 PM - 5:35 PM

[2D20] Development of an immersion ultrasonic imaging method for the shape reconstruction of nuclear fuel debris

*Toshiya Kono¹, Kazushi Kimoto¹, Hiroshige Kikura² (1. OKAYAMA Univ., 2. Tokyo Institute of Technology)

5:35 PM - 5:50 PM

[2D21] Fuel debris recovery plan that constantly carries out critical measures at Fukushima Daiichi Power Station

Continuous collection of fuel debris by boron crystal blasting

*Haruo Morishige¹ (1. Fukushima Nuclear Accident Contermeasures Review Group)

5:50 PM - 6:05 PM

[2D22] Study of Pre-treatment of defueling Fuel Debris for drying storage

Evaluation of Drying characteristic focused on form of Fuel Debris

*Seiya Suzuki¹, Nobuo Okamura¹, Masayuki Watanabe¹, Kenji Koizumi¹ (1. International Research Institute for Nuclear Decommissioning(Japan Atomic Energy Agency))

6:05 PM - 6:20 PM

[2D23] Development of simultaneous measurement for multi isotopes by ICP-QQQ-MS

*Maho Iwasaki¹, Soich Sato¹, Naoya Kaji¹ (1. IRID(JAEA))

Time reserved for Chair （6:20 PM - 6:30 PM）

Oral presentation

[3D01-07] Evaluation for Accident Reactor

Fri. Sep 15, 2017 10:10 AM - 12:00 PM Room D (B31 - B3 Block)

Chair:Yoichi Wada (Hitachi)

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10:10 AM - 10:25 AM

[3D01] The simulation of temperature distribution in 1F unit 3 by using CFD method

*Eiji Kaku¹, Koji Okamoto¹, Masahiro Kondo¹, Erdal Ozdemir¹, Penghui Chai^2,3, Ikken Sato^2,3 (1. University of Tokyo, 2. JAEA, 3. IRID)

10:25 AM - 10:40 AM

[3D02] Improvement of VR system in decommissioning of Fukushima Daiichi Nuclear Power Station

*Rintaro Ito¹, Kenta Suzuki¹, kazunori Horiuchi¹, Hiroyasu Hirano¹ (1. Japan Atomic Energy Agency)

10:40 AM - 10:55 AM

[3D03] Investigation on the Fracture Behavior of Core Structure Materials by Molten Corium in Boiling Water Reactor Plants during Severe Accidents

Fracture Mode of Stainless Steel by molten Fe-Cr-Ni-B-C

*Takehiro Sumita¹, Yoshinao Kobayashi¹, Shigeru Ueda², Toshio Nakagiri³ (1. Tokyo Institute of Technology, 2. Tohoku University, 3. JAEA)

10:55 AM - 11:10 AM

[3D04] Dissolution behavior of stainless steel into Fe-Cr-Ni-B-C alloy

*Jiang Liu¹, Takehiro Sumita¹, Yoshinao Kobayashi¹ (1. Tokyo Institute of Technology)

11:10 AM - 11:25 AM

[3D05] Annealing effect on strength and microstructure of LWR steels during severe accident

Residual strength estimation of the reactor structure after the severe accident

*Kengo Hashimoto¹, Kohei Noguchi¹, Shiro Jitsukawa¹ (1. National Institute of Technology, Fukushima College)

11:25 AM - 11:40 AM

[3D06] Annealing effects on strength and microstructure of LWR steels during severe accident

(2)Effect of heating on the microstructure and strength of the steels for reactor internals during the severe accident

*kohei Noguchi¹, Kengo Hashimoto¹, Seiya Suzuki¹, Tomoyasu Karino¹, Ayato Nagayama¹, Shiro Jitsukawa¹ (1. Nitional Institute of Technology Fukushima college)

11:40 AM - 11:55 AM

[3D07] Characteristics of Radioactive Waste Management in Decommissioning Accident-Damaged Reactors

*Akira Asahara¹, Daisuke Kawasaki¹, Satoshi Yanagihara¹ (1. University of Fukui)

Time reserved for Chair （11:55 AM - 12:00 PM）

Oral presentation

[3D08-12] Water Sealing Technology for F1

Fri. Sep 15, 2017 2:45 PM - 4:05 PM Room D (B31 - B3 Block)

Chair:Daisuke Kawasaki (Fukui Univ.)

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2:45 PM - 3:00 PM

[3D08] Development of water sealing method for S/C by filling up with anti-washout underwater concrete

(11)Outline of experiment of anti-washout underwater concrete filing and water sealing in the full scale S/C model

*Hiroshi Masaki¹, Yuji Murakami², Toshiaki Wakui², Hisashi Imai², Sumiyuki Sawada², Toshinori Dekura¹ (1. IRID(Toshiba), 2. HAZAMA ANDO)

3:00 PM - 3:15 PM

[3D09] Development of water sealing method for S/C by filling up with anti-washout underwater concrete

(12)Influence of T-frange overflowing on water sealing of damage hole with anti-washout underwater concrete in the real scale experiment

*Yuji Murakami¹, Toshiaki Wakui¹, Hisashi Imai¹, Sumiyuki Sawada¹, Hiroshi Masaki², Toshiaki Dekura² (1. HAZAMA ANDO, 2. IRID(Toshiba))

3:15 PM - 3:30 PM

[3D10] Development of water sealing method for S/C by filling up with anti-washout underwater concrete

(13)Water sealing performance of anti-washout underwater concrete for quencher and strainer in the real scale S/C model

Hisashi Imai¹, Toshiaki Wakui¹, *Yuji Murakami¹, Sumiyuki Sawada¹, Hiroshi Masaki², Toshiaki Dekura² (1. HAZAMA ANDO, 2. IRID(Toshiba))

3:30 PM - 3:45 PM

[3D11] Development of water sealing method for S/C by filling up with anti-washout underwater concrete

(14)The placing and finishing condition of anti-washout underwater concrete for the real scale experiment

Ryo Yamashita¹, Yuji Murakami¹, Toshiaki Wakui¹, Hisashi Imai¹, *Sumiyuki Sawada¹, Seiichiro Tanaka¹, Hiroshi Masaki², Toshinori Dekura² (1. HAZAMA ANDO, 2. IRID(Toshiba))

3:45 PM - 4:00 PM

[3D12] Development of water sealing method for S/C by filling up with anti-washout underwater concrete

(15)Properties of hardened anti-washout underwater concrete for the real

*Sumiyuki Sawada¹, Yuji Murakami¹, Toshiaki Wakui¹, Hisashi Imai¹, Ryo Yamashita¹, Hiroshi Masaki² (1. HAZAMA ANDO CORPORATION, 2. IRID(TOSHIBA CORPORATION))

Time reserved for Chair （4:00 PM - 4:05 PM）

Sessions

IV. Nuclear Fuel Cycle and Nuclear Materials » 405-3 Decommissioning Technology of Nuclear Facilities

[1D01-08] Standards Related to Decommissioning Planning

(1)Summary of Activities

(2)Addressing Establishment of General Safety Requirements for Decommissioning of Facilities

(3)Correspondence of IAEA Requirements and Planning Standard

(4)Concept of safety assessment of decommissioning

(5)Study on classification of facility importance of decommissioning plant

(6)For decommissioning study on abnormal event scenario

(7)Guidelines concerning radiological characterization of facilities

(8)Guidelines concerning the characterization survey of facilities

[1D09-16] Decontamination & Dismantling Technology

(1)Basic Characteristics of the Machine

(2)Result of Decontamination Test

(9)Cutting of water jacket and legs of the LV-1 tank

[1D17-21] Other Decommissioning Technology

(1)Detoxification Treatment Method of Torus Water

(2)Optimization of water treatment condition with considering fluctuation of chemical concentration

(1)Study of Cutting Technology by Combination of Press Working and Underwater Plasma Fusing

[2D01-09] System Development and Evaluation

Calculation of composition sensitivity coefficient

Development of decommissioning engineering technology

(8)The Outcomes of Knowledge Management Support System

[2D10-15] Development for Fuel Debris Treatment 1

(1)Outline of Collection, Transfer and Storage of Fuel Debris

(2)Specification of Fuel Debris Canister

(3)Evaluation of Fuel Debris Condition in a Canister for Criticality Safety

(4)Drop Test of Canister

(5)Verification Test of Impact Limiter

(6)Evaluation of Drop Test by Static Numerical Simulation

[2D16-23] Development for Fuel Debris Treatment 2

(7)Measurement of Hydrogen Production Amount by Gamma-Radiolysis of Water

(8)Analytical Evaluation of Hydrogen Production Amount by Gamma-Radiolysis of Water

(9)Measurement of Quantity of Hydrogen by Radiolysis of Concrete Component Water under γ-Ray Irradiation

(10)Examination of Corrosion Resistance for Canister Candidate Material

Continuous collection of fuel debris by boron crystal blasting

Evaluation of Drying characteristic focused on form of Fuel Debris

[3D01-07] Evaluation for Accident Reactor

Fracture Mode of Stainless Steel by molten Fe-Cr-Ni-B-C

Residual strength estimation of the reactor structure after the severe accident

(2)Effect of heating on the microstructure and strength of the steels for reactor internals during the severe accident

[3D08-12] Water Sealing Technology for F1

(11)Outline of experiment of anti-washout underwater concrete filing and water sealing in the full scale S/C model

(12)Influence of T-frange overflowing on water sealing of damage hole with anti-washout underwater concrete in the real scale experiment

(13)Water sealing performance of anti-washout underwater concrete for quencher and strainer in the real scale S/C model

(14)The placing and finishing condition of anti-washout underwater concrete for the real scale experiment

(15)Properties of hardened anti-washout underwater concrete for the real

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