Okubo Nariaki 大久保成彰

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OKUBO Nariaki 大久保成彰

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Researcher Number	60391330
Other IDs
Affiliation (Current)	2025: 国立研究開発法人日本原子力研究開発機構, 原子力科学研究所原子力基礎工学研究センター, リーダー
Affiliation (based on the past Project Information) *help	2024: 国立研究開発法人日本原子力研究開発機構, 原子力科学研究所原子力基礎工学研究センター, リーダー 2023 – 2024: 国立研究開発法人日本原子力研究開発機構, 原子力科学研究部門原子力科学研究所原子力基礎工学研究センター, リーダー 2021 – 2023: 国立研究開発法人日本原子力研究開発機構, 原子力科学研究部門原子力科学研究所原子力基礎工学研究センター, 主任研究員 2018 – 2020: 国立研究開発法人日本原子力研究開発機構, 原子力科学研究部門原子力科学研究所原子力基礎工学研究センター, 研究副主幹 2017: 国立研究開発法人日本原子力研究開発機構, 原子力科学研究部門原子力基礎工学研究センター, 研究副主幹 … More 2016: 日本原子力研究開発機構, 原子力エネルギー基盤連携センター, 副主任研究員 2014: 独)日本原子力研究開発機構, 研究副主幹 2010: 独)日本原子力研究開発機構, 研究員 Less
Review Section/Research Field	Except Principal Investigator Basic Section 31010:Nuclear engineering-related / Nuclear engineering / Medium-sized Section 15:Particle-, nuclear-, astro-physics, and related fields / Nanomaterials engineering / Physical properties of metals
Keywords	Except Principal Investigator イオン照射 / アスタチン / 原子力エネルギー / 原子炉材料 / 中性子照射 / 照射効果 / モデル化 / 微細組織 / 照射損傷 / 格子欠陥 … More / フェーズフィールド法 / 照射相関 / FeCrAl合金 / 事故耐性燃料被覆管 / RI製造 / ビスマス / がん治療 / 製造 / 液体金属 / 治療 / アルファ / 核医学治療 / 連続製造 / がん / アルファ線 / 液体金属標的 / アスタチン-211 / 純鉄 / 原子力材料 / 電子顕微鏡その場観察 / カスケード損傷 / 一次元運動 / 格子間原子集合体 / 直線二色性 / イオンハンマリング / Ion shaping / Ion Shaping / 楕円形ナノ粒子 / 楕円ナノ粒子 / ナノロッド / イオンビーム / プラズモニクス / Ion Beam Shaping / 照射誘起楕円変形 / 金属ナノ粒子 / 高速重イオン / 核変換生成ヘリウム原子 / ヘリウム脆性 / 弾き出し損傷 / 照射脆化 / 照射硬化 / 核融合炉材料 / 金属物性 / 硬化 / 加速器 / 構造・機能材料 / マルチスケールモデル / 点欠陥クラスタ / 金属物理 / 点欠陥クラスター / 電子顕微鏡 Less

事故耐性Fe-Cr-Al合金における高Cr脆化相の照射下シミュレーション技術開発
- Principal Investigator
  
  阿部陽介
- Project Period (FY)
  2022 – 2025
- Research Category
  
  Grant-in-Aid for Scientific Research (B)
- Review Section
  
  Basic Section 31010:Nuclear engineering-related
- Research Institution
  Japan Atomic Energy Agency
アスタチン製造の高効率化を目指した気相中におけるアスタチンの特性評価
- Principal Investigator
  
  石岡典子
- Project Period (FY)
  2022 – 2025
- Research Category
  
  Grant-in-Aid for Scientific Research (B)
- Review Section
  
  Basic Section 31010:Nuclear engineering-related
- Research Institution
  National Institutes for Quantum Science and Technology
Proof of concept of liquid metal Bi targeting system for continuous production of astatine 211 for cancer treatment
- Principal Investigator
  
  ISHIOKA NORIKO
- Project Period (FY)
  2018 – 2021
- Research Category
  
  Grant-in-Aid for Scientific Research (A)
- Review Section
  
  Medium-sized Section 15:Particle-, nuclear-, astro-physics, and related fields
- Research Institution
  National Institutes for Quantum Science and Technology
Mechanism and modeling of one-dimensional motion of interstitial clusters under ion irradiation
- Principal Investigator
  
  Abe Yosuke
- Project Period (FY)
  2017 – 2019
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Nuclear engineering
- Research Institution
  Japan Atomic Energy Agency
Shape elongation of embedded metal nanoparticles induced by swift heavy ion irradiation
- Principal Investigator
  
  AMEKURA Hiroshi
- Project Period (FY)
  2014 – 2016
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Nanomaterials engineering
- Research Institution
  National Institute for Materials Science
Behavior of nuclear reactor materials at high damage levels investigated by ion-irradiation and point defect reaction models
- Principal Investigator
  
  JITSUKAWA Shiro
- Project Period (FY)
  2011 – 2014
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Nuclear engineering
- Research Institution
  Fukushima National College of Technology
  Japan Atomic Energy Agency
Stability evaluation of point defect clusters to estimate microstructural change during irradiation
- Principal Investigator
  
  JITSUKAWA Shiro
- Project Period (FY)
  2008 – 2010
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Physical properties of metals
- Research Institution
  Japan Atomic Energy Agency

All 2024 2023 2020 2019 2017 2016 2015 2014 2013 2012 2011 2010 2009 Other

All Journal Article Presentation

[Journal Article] Shape elongation of embedded Zn nanoparticles induced by swift heavy ion irradiation: A SAXS study2015
- Author(s)
  H. Amekura, K. Kono, N. Okubo, and N. Ishikawa
- Journal Title
  
  physica status solidi (b)
  
  Volume: 252 Issue: 1 Pages: 165-169
- DOI
  10.1002/pssb.201400138
- Peer Reviewed / Acknowledgement Compliant
- Data Source
  KAKENHI-PROJECT-26390032
[Journal Article] Optical birefringence of Zn nanoparticles embedded in silica induced by swift heavy-ion irradiation2014
- Author(s)
  H. Amekura, N. Okubo, and N. Ishikawa
- Journal Title
  
  Optics Express
  
  Volume: 22 Issue: 24 Pages: 29888-29898
- DOI
  10.1364/oe.22.029888
- Peer Reviewed / Acknowledgement Compliant / Open Access
- Data Source
  KAKENHI-PROJECT-26390032
[Journal Article] Shape elongation of Zn nanoparticles in silica irradiated with swift heavy ions of different species and energies: scaling law and some insights on the elongation mechanism2014
- Author(s)
  H. Amekura, S. Mohapatra, U.B. Singh, S.A. Khan, P.K. Kulriya, N. Ishikawa, N. Okubo, and D.K. Avasthi
- Journal Title
  
  Nanotechnology
  
  Volume: 25 Issue: 43 Pages: 435301-435301
- DOI
  10.1088/0957-4484/25/43/435301
- Peer Reviewed / Acknowledgement Compliant
- Data Source
  KAKENHI-PROJECT-26390032
[Journal Article] Development of Models for Irradiation-induced Changes to Microstructure and Stress–Strain Relations of Austenitic Steels2013
- Author(s)
  S. Jitsukawa, Y. Abe, K. Suzuki and N. Okubo
- Journal Title
  
  Effects of Radiation on Nuclear Materials
  
  Volume: ASTM STP 1547 Pages: 288-312
- DOI
  10.1520/stp104147
- ISBN
  9780803175334, 9780803175631
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-23561022
[Journal Article] Cluster Dynamics Simulation on Microstructure Evolution of Austenitic Stainless Steel and alpha-Iron Under Cascade Damage Condition2012
- Author(s)
  Y. Abe, S. Jitsukawa, N. Okubo, H. Matsui and T. Tsukada
- Journal Title
  
  Effects of Radiation on Nuclear Materials
  
  Volume: ASTM STP 1547 Pages: 313-337
- DOI
  10.1520/stp103991
- ISBN
  9780803175334, 9780803175631
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-23561022
[Journal Article] Heat treatment effect on fracture toughness of F82H irradiated in HFIR2011
- Author(s)
  N. Okubo, M.A. Sokolov, H. Tanigawa, T. Hirose, S. Jitsukawa他
- Journal Title
  
  Journal of Nuclear Materials
  
  Volume: 417 Pages: 112-114
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-23561022
[Journal Article] Intensely irradiated steel components : Plastic and fracture properties, and a new concept of structural design criteria for assuring the structural integrity2010
- Author(s)
  K.Suzuki, S.Jitsukawa, N.Okubo, F.Takada
- Journal Title
  
  Nuclear Engineering and Design
  
  Volume: 240 Pages: 1290-1306
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-20560622
[Journal Article] Intensely irradiated steel components : Plastic and fracture properties, and a new concept of structural design criteria for assuring the structural integrity2010
- Author(s)
  K.Suzuki, S.Jitsukawa, N.Okubo, F.Takada
- Journal Title
  
  Nuclear Engineering and Design 240
  
  Pages: 1290-1290
- Data Source
  KAKENHI-PROJECT-20560622
[Journal Article] Irradiation effects on reduced activation ferritic/martensitic steels-tensile, impact, fatigue properties and moldeling2009
- Author(s)
  S.jitsukawa, K.Suzuki, N.Okubo, M.Ando, K.Shiba
- Journal Title
  
  Nuclear Fusion 49
  
  Pages: 115006-115006
- Data Source
  KAKENHI-PROJECT-20560622
[Presentation] 熱時効によるFe-Cr-Al合金中のCrリッチ相の形成挙動と機械特性との関係2024
- Author(s)
  阿部、佐々木、山下、大久保、鵜飼
- Organizer
  日本金属学会2024年春期講演大会
- Data Source
  KAKENHI-PROJECT-23K23281
[Presentation] イオン照射下でのFe-Cr-Al 合金中のCrリッチ相の形成挙動2023
- Author(s)
  阿部、佐々木、山下、大久保、鵜飼
- Organizer
  日本金属学会2023年秋期講演大会
- Data Source
  KAKENHI-PROJECT-23K23281
[Presentation] 格子間原子集合体の一次元運動に対する照射場影響2020
- Author(s)
  阿部、大久保、山下、佐藤
- Organizer
  材料照射研究会「Irradiation 3.0 に向けて」
- Data Source
  KAKENHI-PROJECT-17K07021
[Presentation] イオン照射下での格子間原子集合体の一次元運動2020
- Author(s)
  阿部、大久保、佐藤
- Organizer
  金属学会春期講演大会
- Data Source
  KAKENHI-PROJECT-17K07021
[Presentation] Effect of one-dimensional migration of self-interstitial atom clusters on their number density in alpha-iron under electron irradiation2019
- Author(s)
  Y. Abe, Y. Satoh, N. Okubo, A. Konno
- Organizer
  19th International Conference on Fusion Reactor Materials (ICFRM-19)
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-17K07021
[Presentation] Short ion-track formation and shape-elongation of nanoparticles induced by slow MeV-C60 cluster ion irradiation2017
- Author(s)
  H. Amekura, Y. Saitoh, A. Chiba, Y. Hirano, K. Narumi, D. Tsuya, N. Okubo, N. Ishikawa
- Organizer
  19th Int. Conf. on Radiation Effects in Insulators (REI-19)
- Place of Presentation
  Versaille, France
- Year and Date
  2017-07-02
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-26390032
[Presentation] Refractive index enhancement in yttrium aluminum garnet (YAG) induced by swift heavy ion irradiation2017
- Author(s)
  H. Amekura, R. Li, F. Chen, N. Okubo, N. Ishikawa
- Organizer
  15th Int. Conf. on Advanced Materials (IUMRS-ICAM2017)
- Place of Presentation
  Kyoto Univ., Kyoto
- Year and Date
  2017-08-27
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-26390032
[Presentation] Shape elongation of embedded metal nanoparticles induced by C60 cluster ion irradiation2016
- Author(s)
  H. Amekura, K. Narumi, A. Chiba, A. Usui, Y. Saitoh, D. Tsuya, N. Okubo, N. Ishikawa
- Organizer
  20th International Conf. on Ion Beam Modification of Materials (IBMM)
- Place of Presentation
  Wellington, New Zealand
- Year and Date
  2016-10-30
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-26390032
[Presentation] Shape elongation of embedded metal nanoparticles induced by C60 cluster ion irradiation2016
- Author(s)
  H. Amekura, K. Narumi, A. Chiba, A. Usui, Y. Saitoh, D. Tsuya, N. Okubo, N. Ishikawa
- Organizer
  第26回日本MRS年次大会（国際シンポジウム）
- Place of Presentation
  横浜
- Year and Date
  2016-12-19
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-26390032
[Presentation] Shape Elongation of Embedded Metal Nanoparticles induced by Swift Heavy Ion Irradiation2015
- Author(s)
  H. Amekura, A. Chettah, P. Mota Santiago, P. Kluth, D.K. Avasthi, N. Okubo, N. Ishikawa
- Organizer
  25th Annual Meetings of MRS-J (2015), International Symposia
- Place of Presentation
  Yokohama, Japan
- Year and Date
  2015-12-08
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-26390032
[Presentation] Is the shape elongation mechanism of embedded nanoparticles via underdense track cores acceptable?2015
- Author(s)
  H. Amekura, P. Mota Santiago, P. Kluth, A. Chettah, D.K. Avasthi, N. Okubo, N. Ishikawa
- Organizer
  9th International symposium on Swift Heavy Ions in Matter (SHIM 2015)
- Place of Presentation
  Darmstadt, Germany
- Year and Date
  2015-05-18
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-26390032
[Presentation] Preliminary models on irradiation induced changes of microstructure and stress-strain relations to estimate mechanical response of austenitic and martensitic steel components2011
- Author(s)
  S.Jitsukawa, Y.Abe, K.Suzuki, N.Okubo
- Organizer
  ASTM E-10 Symposium
- Data Source
  KAKENHI-PROJECT-20560622
[Presentation] Microstructural evolution of austenitic stainless steel under cascade damage condition predicted by cluster dynamics simulation : comparison with neutron irradiated α-iron2011
- Author(s)
  Y.Abe, S.Jitsukawa, N.Okubo, H.Matsui, T.Tsukada
- Organizer
  ASTM E-10 Symposium
- Data Source
  KAKENHI-PROJECT-20560622
[Presentation] Shape elongation of embedded Zn nanoparticles irradiated with swift heavy ions of different species and energies
- Author(s)
  H. Amekura, A. Chettah, U.B. Singh, S. Mohapatra, D.K. Avasthi, N. Okubo, and N. Ishikawa
- Organizer
  19th International Conference on Ion Beam Modification of Materials (IBMM)
- Place of Presentation
  Leuven, Belgium
- Year and Date
  2014-09-14 – 2014-09-19
- Data Source
  KAKENHI-PROJECT-26390032
[Presentation] Shape Elongation of Embedded Zn Nanoparticles in SiO2 by Swift Heavy Ion Irradiation
- Author(s)
  H. Amekura, D. Tsuya, N. Okubo, and N. Ishikawa
- Organizer
  第15回「イオンビームによる表面・界面解析」特別研究会
- Place of Presentation
  筑波大学
- Year and Date
  2014-12-05 – 2014-12-06
- Data Source
  KAKENHI-PROJECT-26390032
[Presentation] Stopping Power Dependence on Shape Elongation of Zn Nanoparticles under Swift Heavy Ion Irradiation; Elongation via Low-density Track Cores
- Author(s)
  H. Amekura, N. Ishikawa, N. Okubo, A. Chettah, S. Mohapatra, D.K. Avasthi
- Organizer
  Euro MRS 2014 Spring Meeting, Symposium E
- Place of Presentation
  Lille, France
- Year and Date
  2014-05-26 – 2014-05-30
- Data Source
  KAKENHI-PROJECT-26390032
[Presentation] Shape Elongation of Zn Nanoparticles under Swift Heavy Ion Irradiation: Criticism on Elongation via Underdense Track Cores
- Author(s)
  H. Amekura, N. Ishikawa, N. Okubo, and D.K. Avasthi
- Organizer
  IUMRS-ICA 2014
- Place of Presentation
  福岡大学
- Year and Date
  2014-08-24 – 2014-08-30
- Data Source
  KAKENHI-PROJECT-26390032

1. ABE Yosuke (50400403)

# of Collaborated Projects: 4 results

# of Collaborated Products: 9 results
2. JITSUKAWA Shiro (80354835)

# of Collaborated Projects: 2 results

# of Collaborated Products: 8 results
3. ISHIOKA NORIKO (30354963)

# of Collaborated Projects: 2 results

# of Collaborated Products: 0 results
4. 渡辺茂樹 (10450305)

# of Collaborated Projects: 2 results

# of Collaborated Products: 0 results
5. 高井俊秀 (30742473)

# of Collaborated Projects: 2 results

# of Collaborated Products: 0 results
6. AMEKURA Hiroshi (00354358)

# of Collaborated Projects: 1 results

# of Collaborated Products: 13 results
7. ISHIKAWA Norito (90354828)

# of Collaborated Projects: 1 results

# of Collaborated Products: 13 results
8. 澤井友次 (80354827)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
9. 河野健一郎 (50354353)

# of Collaborated Projects: 1 results

# of Collaborated Products: 1 results
10. 佐藤裕樹 (20211948)

# of Collaborated Projects: 1 results

# of Collaborated Products: 3 results
11. 古川智弘 (60421765)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
12. 近藤浩夫 (40403159)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
13. 佐々木泰祐 (30615993)

# of Collaborated Projects: 1 results

# of Collaborated Products: 2 results
14. 山下真一郎 (10421786)

# of Collaborated Projects: 1 results

# of Collaborated Products: 2 results
15. 鵜飼重治 (00421529)

# of Collaborated Projects: 1 results

# of Collaborated Products: 2 results
16. AVASTHI Devesh.

# of Collaborated Projects: 1 results

# of Collaborated Products: 6 results
17. KHAN Saif

# of Collaborated Projects: 1 results

# of Collaborated Products: 1 results
18. GOMEZ Daniel

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results

Okubo Nariaki 大久保 成彰

OKUBO Nariaki 大久保 成彰

Research Projects

Research Products

Co-Researchers

事故耐性Fe-Cr-Al合金における高Cr脆化相の照射下シミュレーション技術開発

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

アスタチン製造の高効率化を目指した気相中におけるアスタチンの特性評価

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

Proof of concept of liquid metal Bi targeting system for continuous production of astatine 211 for cancer treatment

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

Mechanism and modeling of one-dimensional motion of interstitial clusters under ion irradiation

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

Shape elongation of embedded metal nanoparticles induced by swift heavy ion irradiation

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

Behavior of nuclear reactor materials at high damage levels investigated by ion-irradiation and point defect reaction models

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

Stability evaluation of point defect clusters to estimate microstructural change during irradiation

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

[Journal Article] Shape elongation of embedded Zn nanoparticles induced by swift heavy ion irradiation: A SAXS study2015

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Optical birefringence of Zn nanoparticles embedded in silica induced by swift heavy-ion irradiation2014

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Shape elongation of Zn nanoparticles in silica irradiated with swift heavy ions of different species and energies: scaling law and some insights on the elongation mechanism2014

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Development of Models for Irradiation-induced Changes to Microstructure and Stress–Strain Relations of Austenitic Steels2013

Author(s)

Journal Title

DOI

ISBN

Data Source

[Journal Article] Cluster Dynamics Simulation on Microstructure Evolution of Austenitic Stainless Steel and alpha-Iron Under Cascade Damage Condition2012

Author(s)

Journal Title

DOI

ISBN

Data Source

[Journal Article] Heat treatment effect on fracture toughness of F82H irradiated in HFIR2011

Author(s)

Journal Title

Data Source

[Journal Article] Intensely irradiated steel components : Plastic and fracture properties, and a new concept of structural design criteria for assuring the structural integrity2010

Author(s)

Okubo Nariaki 大久保成彰

OKUBO Nariaki 大久保成彰