Naoe Takashi

ナオエタカシ | Naoe Takashi

Affiliation and department：
Job title：研究副主幹

Research field (2)： Fluid engineering , Machine materials and mechanics

Research keywords (10)： Post Irradiation Examination , cavitation , Remote handling , High speed visualization , Gigacycle fatigue , acoustic vibration , Laser cutting , fatigue , indentation , liquid metal embrittlement

Research theme for competitive and other funds (8)：

2021 - 2024 Study on mechanism of the cavitation erosion mitigation in narrow gap under flowing condition
2017 - 2020 Study on gigacycle fatigue strength of welded metals and crack detection technique
2014 - 2016 Fatigue strength evaluation under high-strain rate loading
2011 - 2015 Comprehensive study on mercury cavitation by proton beam-induced pressure waves and its mitigation techniques
2011 - 2013 Development of diagnostic technique for structure filled with liquid metal using acoustic vibration

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Papers (106)：

Takashi Naoe, Takashi Wakui, Hidetaka Kinoshita, Hiroyuki KOGAWA, Makoto Teshigawara, Katsuhiro Haga. Technical Note for the Cavitation Damage Inspection for Interior Surface of the Mercury Target Vessel, 2;Damage Depth Measurement for Cavitation Erosion. JAEA-Technology 2023-022. 2024. 81
Toshiyuki Kusumoto, Koichi Saruta, Takashi Naoe, Makoto Teshigawara, Masatoshi Futakawa, Kazuo Hasegawa, Akihiko Tsuboi. Application of Machine Learning to Spattering Phenomena in Laser Cutting. Journal of JSEM. 2023. 23. 4. 310-315
Hiroyuki KAWASHIMA, Takuma KUROSAWA, Makoto TESHIGAWARA, Takashi NAOE, Nobuatsu TANAKA, Masatoshi FUTAKAWA, Hiroyuki KOGAWA. Spattering Behavior Induced by Cavitation Bubble Collapsing Nearby Gas-Liquid Interface. Advanced Experimental Mechanics. 2022. 7. 43-48
Naoe Takashi, Kinoshita Hidetaka, Wakui Takashi, Kogawa Hiroyuki, Haga Katsuhiro. Technical note for the cavitation damage inspection for interior surface of the mercury target vessel, 1; Development of specimen cutting machine for remote handling. JAEA-Technology 2022-018. 2022. 43
Haga Katsuhiro, Kogawa Hiroyuki, Naoe Takashi, Wakui Takashi, Wakai Eiichi, Futakawa Masatoshi. Development of the high-power spallation neutron target of J-PARC. Proceedings of 19th International Topical Meeting on Nuclear Reactor Thermal Hydraulics (NURETH-19) (Internet). 2022. 13

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MISC (7)：

Takada Hiroshi, Naoe Takashi, Kai Tetsuya, Kogawa Hiroyuki, Haga Katsuhiro. Progress of target system operation at the pulsed spallation neutron source in J-PARC. Proceedings of 12th International Topical Meeting on Nuclear Applications of Accelerators (AccApp '15). 2016. 297-304
Haga Katsuhiro, Kogawa Hiroyuki, Wakui Takashi, Naoe Takashi, Futakawa Masatoshi. Development of the high power mercury target and the bubbler installation. Proceedings of 20th Meeting of the International Collaboration on Advanced Neutron Sources (ICANS-20) (USB Flash Drive). 2012. 6
Kawai Masayoshi*, Futakawa Masatoshi, Naoe Takashi, Xu C.-N.*, Yamada Hiroshi*. Measurements of time-dependent stress distribution on material after HP impact. Proceedings of 7th International Symposium on Impact Engineering (ISIE 2010) (CD-ROM). 2010. 380-385
Futakawa Masatoshi, Naoe Takashi, Kogawa Hiroyuki. Impact pressure mitigation in mercury target for pulsed spallation neutron sources. Proceedings of 7th International Symposium on Impact Engineering (ISIE 2010) (CD-ROM). 2010. 246-255
Ida Masato, Naoe Takashi, Futakawa Masatoshi. Suppression of mercury cavitation by gas bubble injection. Nihon Kikai Gakkai Dai-21-Kai Keisan Rikigaku Koenkai Rombunshu (CD-ROM). 2008. 572-573

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Patents (4)：

加工装置および加工装置の制御方法
液体金属ターゲット用旋回流型マイクロバブル発生装置および流体装置
中空金属焼結体、それを利用した中性子源液体金属ターゲット用バブラー及びその製造方法
オーステナイト系ステンレス鋼部品の階層表面改質法

Lectures and oral presentations (221)：

Aiming performance enhance of MLF-Neutron Source
(2023年度量子ビームサイエンスフェスタ; 第15回MLFシンポジウム, 第41回PFシンポジウム)
Updates on the operation of the MLF neutron target at J-PARC and perspectives for future operation
(8th High Power Targetry Workshop (HPTW2023) 2023)
Present status of cavitaion damage mitigation techiques for the mercury target veesel of J-PARC pulsed spallation neutron source
(8th High Power Targetry Workshop (HPTW2023))
RaDIATE activities at J-PARC
(2023 RaDIATE Collaboration Meeting 2023)
Lifetime prediction of the mercury target vessel
(14th MLF Symposium 2023)

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Education (3)：

2004 - 2007 Ibaraki University
2002 - 2004 Ibaraki University
2000 - 2002 Ibaraki University

Professional career (1)：

Doctor of engineering (Ibaraki University)

Work history (3)：

2016/07 - 現在 Japan Atomic Energy Agency Assistant principal researcher
2010/04 - 2016/06 Japan Atomic Energy Agency Researcher
2007/04 - 2010/03 Japan Atomic Energy Agency Postdoctoral fellow

Committee career (4)：

2023/03 - 現在 Scientific Board of the HiRadMat test facility at CERN
2017/10 - 現在 Scientific Program Committee of High Power Targetry Workshop
2020/04 - 2022/03 Japan Society of Mechanical Engineers Acting Member, Kanto Branch, Ibaraki Block
2019/11 - The Japanese Society for Experimental Mechanics (JSEM) Local Executive Committee of 14th International Symposium on Advanced Science and Technology in Experimental Mechanics

Awards (6)：

2019/09 - Atomic Energy Society of Japan Materials Science and Technologies Division young excellence award Evaluation on material damage of the target vessel for the pulsed spallation neutron source
2017/03 - Atomic Energy Society of Japan Atomic Energy Society of Japan Award Development of microbubble generator for suppression of pressure waves in mercury target of spallation source
2015/02 - The Japan Society of Mechanical Engineers JSME Medal for New Technology Development of pressure wave mitigation technique by using microbubbles to realize mercury target for high power pulsed spallation neutron source
2014/10 - Japan Atomic Energy Agency Research and Development Achievement Award Development of pressure wave mitigation technique and its in-situ diagnostic technique for pulsed spallation neutron source
2006 - The Japanese Society for Experimental Mechanics JSEM award FY2006

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Association Membership(s) (3)：

ATOMIC ENERGY SOCIETY OF JAPAN , The Japanese Society for Experimental Mechanics , The Japan Society of Mechanical Engineers

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