Rchr

J-GLOBAL ID：200901066894572220 Update date: Mar. 23, 2026

Ashikawa Naoko

アシカワナオコ | Ashikawa Naoko

Affiliation and department：
Job title： Researcher

Research field (5)： Measurement engineering , Metallic materials , Basic plasma science , Mathematical physics and basic theory , Nuclear fusion

Research keywords (8)：真空工学 , Surface analysis , 計測工学 , Hysrogen Isotope , Wall Conditioning , Tritium Engineering , Fusion Engineering , Plasma Wall Interaction

Research theme for competitive and other funds (25)：

2023 - 2024 核融合と水素エネルギー利用社会のあるべき姿
2022 - 2024 真空下での効果的なトリチウム除染
2020 - 2024 重イオン照射タングステンからの等温制御による重水素脱離効果
2020 - 2023 Plasma driven permeation for plasma facing materials and its hydrogen isotope effect
2023 - 2023 Control of wall recycling on metallic plasma facing materials in fusion reactor

2022 - 2023 次世代研究者育成を目指した地域密着型体感プログラム

2020 - 2023 原型炉における真空容器内トリチウム除染法の構築

2019 - 2023 Control of wall recycling on metallic plasma facing materials in fusion reactor

2018 - 2022 Investigation of tritium decontamination method under the vacuum condition for fusion reactors

2014 - 2019 Hydrogen retention in radiation-damaged tungsten and development of retention reduction method

2016 - 2016 Characterization of Dust Particles from JET-ILW

2012 - 2015 A laboratory study on particle control by liquid metal plasma-facing components

2012 - 2015 Observation by infrared spectroscopy on time-development growth of carbon dusts in hydrogen plasma

2011 - 2013 核融合研究におけるコンピュータビジョン研究 -ダスト粒子イメージング-

2010 - 2012 Quantitative evaluation and active control of tritiumrecycling in the plasma facing materials during mixed ion implantations

2009 - 2011 Simulation experiments on the cluster and aerosol formation by colliding ablation plumes in an inertial confinement fusion reactor

2007 - 2011 Theory and code development for evaluation of tritium retention and exhaust in fusion reactor

2009 - 2010 Interactions between accelerated dust particles and an aerogel target

2004 - 2008 Development of imaging bolometer for a lost alpha diagnostic in a fusion reactor

2004 - 2006 Development of Imaging Bolometer for Burning Tokamak Experiment

2004 - 2006 磁場閉じ込め核融合装置における局所放射損失と第一壁の相互作用

2004 - 2005 Quantization of precursor process of exfoliation dust occurrence

2002 - 2003 赤外ボロメータカメラを用いたプラズマ放射光の3次元計測

2002 - 2002 ヘリカルプラズマにおける非対称構造を伴う放射崩壊現象に関する研究

2000 - 2002 IRカメラを用いたプラズマ中における不純物輸送に関する研究

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Papers (287)：

F. Nespoli, S. Masuzaki, K. Tanaka, M. Shoji, R. Lunsford, N. Ashikawa, E. P. Gilson, N. Tamura, D. Medina-Roque, T. Kawate, et al. Impurity Powder Injection Experiments in the Large Helical Device. Journal of Fusion Energy. 2025. 44. 2. 58
A Ejiri, Y Takase, N Ashikawa, T Fujita, K Hanada, K Ibano, H Igami, Y Kume, S Konishi, Y Ono, et al. Optimization of design point for a fusion energy systems integration test facility FAST. Plasma Physics and Controlled Fusion. 2025. 67. 7. 075002-075002
Naoko Ashikawa, Richard Pearson. The Fusion Energy Paradigm Shift: Accelerating the Path to Commercialization. The journal of the Institute of electrical Engineers of Japan. 2025. 145. 4. 210-213
H. Shirai, K. Takahashi, E. Di Pietro, D. Abate, W. Abdel Maksoud, H. Abe, N. Aiba, T. Abe, M. Akimitsu, J. Ayllon-Guerola, et al. Recent progress of JT-60SA project toward plasma operation. Nuclear Fusion. 2024. 64. 11. 112008
K. Ida, M. Yoshinuma, M. Kobayashi, T. Kobayashi, N. Kenmochi, F. Nespoli, R.M. Magee, F. Warmer, A. Dinklage, A. Matsuyama, et al. Overview of Large Helical Device experiments of basic plasma physics for solving crucial issues in reaching burning plasma conditions. Nuclear Fusion. 2024. 64. 11. 112009-112009

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MISC (93)：

江尻晶, 芦川直子, 藤田隆明, 花田和明, 伊庭野健造, 伊神弘恵, 久米祥文, 小西哲之, 小野靖, 世古圭, et al. Parameter survey for achieving a certain neutron wall flux in the FAST: a fusion energy systems integration test facility. 日本物理学会講演概要集(CD-ROM). 2025. 80. 1
星野柚香, 芦川直子, 外山健, 島田雅, KOLASINSKI Robert, 大矢恭久. Effects of irradiation defects on HD mixed plasma driven permeation for tungsten-rhenium alloy. 日本原子力学会春の年会予稿集(CD-ROM). 2024. 2024
芦川直子, SUN Zhen, 大石鉄太郎, 吉沼幹朗, LUNSFORD Robert, 鈴木康浩. Time response of boron/lithium particle interaction to deuterium plasmas in LHD. 日本物理学会講演概要集(CD-ROM). 2024. 79. 1
芦川直子, 芦川直子, SUN Z., 大石鉄太郎, 大石鉄太郎, 川手朋子, 川手朋子, 吉沼幹朗, 吉沼幹朗, LUNSFORD R., et al. Progress of wall recycling control using low Z impurity powders in LHD. 日本原子力学会春の年会予稿集(CD-ROM). 2023. 2023
波多野雄治, LEE Suneui, 増崎貴, 時谷政行, 大矢恭久, 宮本光貴, 芦川直子, 矢嶋美幸, 鳥養祐二, 大塚哲平, et al. Tritium retention in gaps of first wall and divertor tiles used in JET-ITER like wall experiments. 日本原子力学会秋の大会予稿集(CD-ROM). 2023. 2023

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Lectures and oral presentations (22)：

SCENARIO OF TRITIUM DECONTAMINATION FOR PLASMA FACING AREAS IN DEMO
(IAEA Fusion Energy Conference (FEC) 2023 2023)
Scenario of tritium decontamination on plasma-facing components in Fusion DEMO
(2023)
Deuterium desorption on heavy ion irradiated tungsten using isothermal desorption method and their optimization
(2023)
Fusion power complex with electric power and hydrogen production
(2023)
Progress of wall recycling control using low Z impurity powders in LHD
(2023)

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Education (1)：

1999 - 2002 The Graduate University for Advanced Studies School of Physical Sciences Department of Fusion Science

Professional career (1)：

Ph.D (The Graduate University for Advanced Studies, SOKENDAI)

Work history (11)：

2024/04 - 現在 Shizuoka University Part-time teacher
2024 - 現在 Kyotofusioneering
2023/04 - 2023/12 SOKENDAI, The Graduate University for Advanced Studies Fusion Science Program Associate Professor
2023/04 - 2023/12 National Institute for Fusion Science Department of Research, Applied Superconductivity and Cryogenics Unit Associate Professor
2023/07 - 2023/11 Hefei Institutes of Physical Science, Chinese Academy of Sciences (HFIPS) Invited Visiting Researcher

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Committee career (42)：

2025/12 - 現在 16th Joint meeting of Fusion Energy (2026) Chair, Committee of Young presentation award
2025/07 - 現在日本原子力学会国際活動委員会委員
2025/04 - 現在 AESJ, Fusion Engineering Division Chief of Award committee
2025/04 - 現在 The Japan Society of Plasma Science and Nuclear Fusion Research (JSPF) Committee member and committee program member in Nuclear Fusion Technologies
2025/04 - 現在 JSPF Chief

2025 - 現在電気学会挑戦的核融合技術調査専門委員会委員

2022/06 - 現在 JSPF Public relations committee

2020/04 - 現在 MEXT, National Institute of Acience and Technology Policy Expert Investigator

2020/04 - 現在 The Japan Society of Plasma Science anc Nuclear Fusion Research Gender Equivalent Committee member

2023/04 - 2026/03 The Physical Society of Japan Editorial board mumber

2024/04 - 2025/03 Chief

2022/01 - 2025/03 The Japan Society of Plasma Science and Nuclear Fusion Research (JSPF) Committee member and committee program member in Plasma and Nuclear Fusion Research

2021/04 - 2025/03 Atomic Energy Society of Japan, Fusion Engineering Divison Public relations committee

2024/01 - 2024/09 International Stellarator Heliotron Workshop (ISHW) 2024 Local Organizing Committee member

2023/04 - 2024/03 プラズマ・核融合学会専門委員会「核融合炉燃料としてのトリチウムの包括的なリテラシーの向上」幹事

2023/04 - 2024/03 Council on Competitiveness-Nippon (COCN), "Hydrogen-Superconducting Complex" Project Member

2024 - 2024 AAPPS-DPP2024 Annual Conference Scientific Program committee

2024 - 2024 JSPF Committee member

2023/04 - 2023/12 National Institute for Fusion Science Sub-chief of Specified high-pressure gas handling in Large Helical Device Building

2022/10 - 2023/03 Council on Competitiveness-Nippon (COCN), "Carbon-Neutral Society produced by Superconducting technologies" Project Member

2021/04 - 2023/03 プラズマ・核融合学会専門委員会「核融合実現に向けたトリチウム諸課題の検討」幹事

2021/04 - 2023/03 Chief of Specified high-pressure gas handling in Large Helical Device Building

2019/04 - 2023/03 JSPS-CAS Bilateral program, Joint Research project, key person

2023 - 2023 JSPF Committee member

2022/06 - 2022/11 The 31th International Toki Conference on Plasma and Fusion Research International Program Committee

2021/11 - 2022/11 The 30th International Toki Conference on Plasma and Fusion Research Committee member

2022/06 - 2022/06 IAEA Coordinated Researching Program for “the Injected Impurities Coordinated Research Project” Consultancy Committee member

2006 - 2022/06 International Tokamak Physics Activity (ITPA), SOL and Divertor Physics Committee Member

2006 - 2022/06 プラズマ物理クラスタースクレイプ・オフ層及びダイバータ物理サブクラスター国内委員

2019 - 2022 “In-vessel tritium inventory”, as a committee member for “Working Group of Tritium issues in DEMO” Sub Leader

2007/04 - 2021/03 Vice-chief of Specified high-pressure gas handling in Large Helical Device Building

2015 - 2020 IAEA Coordinated Researching Program for “Plasma-wall Interaction with Reduced-activation Steel Surfaces in Fusion Devices” Member

2019/04 - 2019/11 The 28th International Toki Conference on Plasma and Fusion Research Local Organizing committee

2019/09 - 2019/09 IAEA Coordinated Researching Program for “Hydrogen Permeation in Fusion Materials” Consultancy Committee member

2018/06 - 2019/06 4th International Workshop on Models and Data for Plasma-Material Interaction in Fusion Devices(MoD-PMI2019) Local Organizing Committee

2012 - 2018 JSPS A3 foresight Program Key parson for PWI topic (Sub key parson for category IIa)

2017/04 - 2017/12 The joint meeting of the 26th International Toki Conference and the 11th APFA conference Local Organizing committee

2012/04 - 2016/03 核融合科学研究所 ITER・BA連携部会幹事

2013 - 2014/05 21th International conference on Plasma Surface Interactions (2014) Local Organizing committee

2008/04 - 2012/03 JSPS Core University Program (Japan-China) , "Study of Plasma Confinement for advanced reactors" Member

2008 - 2012 IAEA Coordinated Researching Program for "Characterization of size, composition and origins of dust in fusion devices" Member

2006 - 2009 International Tokamak Physics Activity (ITPA) joint research, DSOL-8, "ICRF Wall conditioning" Group Leaser

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Awards (6)：

2022/09 - The Japan Society of Plasma Science and Nuclear Fusion Research (JSPF) 27th JSPF Award for Notable Contribution to Technology Development of measurement technology for tritium accumulated in dust particles and its application to dust analysis generated in JET
2022/05 - Plasma Science and Technology Plasma Science and Technology 2021 highlight papers ”Line identification of boron and nitrogen emissions in EUV and VUV wavelength ranges in the impurity powder dropping experiments of LHD and its application to spectroscopic diagnostics”
2021/03 - 日本原子力学会材料部会第3回日本原子力学会材料部会 Best Figure賞「JET-ILW ダストに対する燃焼法による残留トリチウム測定。酸化反応による錫燃焼の瞬間」
2002/06 - 第4回核融合エネルギー連合講演会若手ポスター発表優秀賞「LHDにおけるIRボロメータを用いた非対称性放射崩壊現象について」
2002/03 - 総合研究大学院大学長倉研究奨励賞

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Association Membership(s) (6)：

The Society of Instrument and Control Engineers , 日本物理学会 , 日本表面真空学会 , 電気学会 , 日本原子力学会 , プラズマ・核融合学会

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