Decision of Low Density Materials for Fast Ignition Realization Experiments(FIREX) and its Encapsulation

2009 Fiscal Year Final Research Report

• Project/Area Number: 19360414
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Nuclear fusion studies
• Research Institution: Osaka University
• Principal Investigator: NAGAI Keiji Osaka University, 資源化学研究所, 准教授 (30280803)
• Co-Investigator(Kenkyū-buntansha): NEMOTO Nobukatsu 日本大学, 工学部, 准教授 (30237812) ; IWAMOTO Akifumi 自然科学研究機構, 核融合科学研究所, 助教 (00260050) ; NAKAI Mitsuo 大阪大学, レーザーエネルギー学研究センター, 准教授 (70201663) ; NORIMATSU Takayoshi 大阪大学, レーザーエネルギー学研究センター, 教授 (50135753)
• Co-Investigator(Renkei-kenkyūsha): HOMMA Hirofumi 大阪大学, レーザーエネルギー学研究センター, 助教 (90401801)
• Project Period (FY): 2007 – 2009
• Keywords: FIREX計画 / エアロゲル / レーザー核融合 / 有機材料 / 極低密度

Research Abstract

レーザー核融合ターゲットの種々の仕様を満たす低密度材料を探索した。プラスチック材料の分子構造と合成時に用いる溶媒分子の相互作用の観点から、空隙構造の形成因子を明らかにすると共に、そのカプセル化をおこなった。フロログルシノールカルボン酸・ホルムアルデヒド重合体をカプセルの母材として用いてカプセル化することに成功すると共に、これまでよりも1桁空隙サイズが小さくなることを明らかとした。FIREX-I計画の進行に伴い、いくつかのターゲットデザインが変更されたが、それらに関しても一部の製造技術開発に成功した。

Research Products

• [Journal Article] Smooth Membrane Formation on Resorcinol-Formaldehyde Aerogel Ball Using a Basic Phase-Transfer Catalyst (2009)
  • Author(s): Fuyumi Ito, Naotake Nakamura, Keiji Nagai*, Mitsuo Nakai, Takayoshi Norimatsu
  • Journal Title: Fusion Sci. Technol. 55(4) Pages: 465-471
  • Peer Reviewed
• [Journal Article] TEMPERATURE CONTROL IN A CRYOGENIC TARGET WITH A CONICAL LASER GUIDE FOR FUEL LAYERING (2009)
  • Author(s): A. Iwamoto, T. Fujimura, M. Nakai, T. Norimatsu, K. Nagai, R. Maekawa, H. Sakagami, T. Mito, O. Motojima, H. Azechi, K. Mima
  • Journal Title: Fusion Sci. Technol 56(1) Pages: 427-431
  • Peer Reviewed
• [Journal Article] Fabrication of aerogel capsule, bromine-doped capsule, and modified gold cone in modified target for Fast Ignition Realization Experiment (FIREX) Project (2009)
  • Author(s): Keiji Nagai, H. Yang, T. Norimatsu, H. Azechi, F. Belkada, Y. Fujimoto, T. Fujimura, K. Fujioka, S. Fujioka, H. Homma, F. Ito, A. Iwamoto, T. Jitsuno, Y. Kaneyasu, M. Nakai, N. Nemoto, H. Saika, T. Shimoyama, Y. Suzuki, K. Yamanaka, K. Mima
  • Journal Title: Nuclear Fusion 49(9) Pages: 095028 (9)
  • Peer Reviewed
• [Journal Article] Advanced target design for the FIREX-I project (2009)
  • Author(s): Hiroshi AZECHI, Mitsuo NAKAI, Hirofumi HOMMA, Tomoyuki JOHZAKI, Mayuko KOGA, Kunioki MIMA, Noriaki MIYANAGA, Masakatsu MURAKAMI, Hideo NAGATOMO, Keiji NAGAI, Tatsufumi NAKAMURA, Katsunobu NISHIHARA, Hiroaki NISHIMURA, Takayoshi NORIMATSU, Youichi SAKAWA, Hiroshi AZECHI, Mitsuo NAKAI, Hirofumi HOMMA, Tomoyuki JOHZAKI, Mayuko KOGA, Kunioki MIMA, Noriaki MIYANAGA, Masakatsu MURAKAMI, Hideo NAGATOMO, Keiji NAGAI
  • Journal Title: Plasma Fusion Res. 4 Pages: S1001 (2)
  • Peer Reviewed
• [Journal Article] Proposal on Temperature Control Procedure of the Cryogenic Target for the FIREX Project (2009)
  • Author(s): Akifumi Iwamoto, Takeshi Fujimura, Mitsuo Nakai, Takayoshi Norimatsu, Keiji Nagai, Ryuji Maekawa, Hitoshi Sakagami
  • Journal Title: Plasma Fusion Res. 4 Pages: S1007 (2)
  • Peer Reviewed
• [Journal Article] Manufacturing of leak check of shell targets for FIREX-I project (2009)
  • Author(s): Takeshi Fujimura, Mitsuo Nakai, Akifumi Iwamoto, Keiji Nagai, Hirofumi Homma, Ken-ichi Tanabe, Takayoshi Norimatsu
  • Journal Title: Plasma Fusion Res. 4 Pages: S1010 (2)
  • Peer Reviewed
• [Journal Article] Tin-Doped Resorcinol-Formaldehyde Aerogel with Decanano-Cell Structure (2009)
  • Author(s): Fuyumi Ito, Naotake Nakamura, Takayoshi Norimatsu, Keiji Nagai
  • Journal Title: Plasma Fusion Res. 4 Pages: S1011 (2)
  • Peer Reviewed
• [Journal Article] Enhanced Catalytic Activity of Gold Nanoparticles Doped in a Mesoporous Organic Gel based on Polymeric Phloroglucinol Carboxylic Acid-Formaldehyde (2009)
  • Author(s): Han Yang, Keiji Nagai, Toshiyuki Abe, Hirofumi Homma, Takayoshi Norimatsu, Ramasamy Ramaraj
  • Journal Title: ACS Appl. Mater. Interfaces 1(9) Pages: 1860-1864
  • Peer Reviewed
• [Journal Article] Plasma physics and laser development for the Fast-Ignition Realization Experiment (FIREX) Project (2009)
  • Author(s): H. Azechi, K. Mima, Y. Fujimoto, S. Fujioka, H. Homma, M. Isobe, A. Iwamoto, T. Jitsuno, T. Johzaki, R. Kodama, M. Koga, K. Kondo, J. Kawanaka, T. Mito, N. Miyanaga, O. Motojima, M. Murakami, H. Nagatomo, K. Nagai, M. Nakai, H. Nakamura, T. Nakamura, T.H. Azechi, K. Mima, Y. Fujimoto, S. Fujioka, H. Homma, M. Isobe, A. Iwamoto, T. Jitsuno, T. Johzaki, R. Kodama, M. Koga, K. Kondo, J. Kawanaka, T. Mito, N. Miyanaga, O. Motojima, M. Murakami, H. Nagatom
  • Journal Title: Nuclear Fusion 49(10) Pages: 104024 (6)
  • Peer Reviewed
• [Journal Article] 高速点火核融合研究の進展-高速点火実証ターゲット, ペタワットレーザーLFEX- (2009)
  • Author(s): 乗松孝好, 長井圭治, 岩本晃史, 中井光男, 河仲準二, 中田芳樹
  • Journal Title: プラズマ・核融合学会誌 85(11) Pages: 755-761
  • Peer Reviewed
• [Journal Article] レーザー核融合高速点火実証実験用クライオターゲットの開発-燃料充填状況の可視化技術- (2008)
  • Author(s): 藤村猛*、中井光男、岩本晃史、乗松孝好、長井圭治、本間啓史、ヤンハン、坂上仁志
  • Journal Title: 低温工学 43(3) Pages: 108-112
  • Peer Reviewed
• [Journal Article] Thin shell aerogel fabrication for FIREX-I targets using high viscosity (phloroglucinol carboxylic acid)/formaldehyde solution (2008)
  • Author(s): HAN YANG, KEIJI NAGAI*, MITSUO NAKAI, AND TAKAYOSHI NORIMATSU
  • Journal Title: Laser Particle Beam 26(3) Pages: 449-453
  • Peer Reviewed
• [Journal Article] Rayleigh-Taylor instability growth on low-density foam target (2008)
  • Author(s): T. Watari*, M. Nakai, H. Azechi, T. Sakaiya, H. Shiraga, K. Shigemori, S. Fujioka, K. Otani, K. Nagai, A. Sunahara, H. Nagatomo, K. Mima
  • Journal Title: Phys. Plasmas 15(9) Pages: 092109 (6)
  • Peer Reviewed
• [Journal Article] Foam structure of xerogel prepared via ring-opening reaction between epoxy groups attached on the side chain of polystyrene (2007)
  • Author(s): Kentaro Yamanaka, Keiji Nagai, Nobukatsu Nemoto, Kaori Nomura, Tomonori Shimoyama, Kei Tanji, Tomoya Tanji, Mitsuo Nakai, Takayoshi Norimatsu
  • Journal Title: Fusion Sci. Technol. 51(4) Pages: 665-672
  • Peer Reviewed
• [Journal Article] Laser Machining of RF Foam by Second Harmonics of Nd:YAG Laser (2007)
  • Author(s): Takeshi Fujimura, Takayoshi Norimatsu, Mitsuo Nakai, Keiji Nagai, Akifumi Iwamoto, Kunioki Mima
  • Journal Title: Fusion Sci. Technol. 51(4) Pages: 677-681
  • Peer Reviewed
• [Journal Article] Preliminary Results of Fuel Layering on the Cryogenic Target for FIREX project (2007)
  • Author(s): A. Iwamoto, R. Maekawa, T. Mito, H. Sakagami, O. Motojima, M. Nakai, K. Nagai, T. Fujimura, T. Norimatsu, H. Azechi, K. Mima
  • Journal Title: Fusion Sci. Technol. 51(4) Pages: 753-757
  • Peer Reviewed
• [Journal Article] Recent experiments on the hydrodynamics of laser-produced plasmas conducted at the PALS laboratory (2007)
  • Author(s): D. Batani, R. Dezulian, R. Redaelli, R. Benocci, H. Stabile, F. Canova, T. Desai, G. Lucchini, E. Krousky, K. Masek, M. Pfeifer, J. Skala, R. Dudzak, B. Rus, J. Ullschmied, V. Malka, J. Faure, M. Koenig, J. Limpouch, W. Nazarov, D. Pepler, K. Nagai, T.D. Batani, R. Dezulian
  • Journal Title: Laser Particl. Beams 25(1) Pages: 127-141
  • Peer Reviewed
• [Journal Article] Recent results and future prospects of laser fusion research at ILE, Osaka (2007)
  • Author(s): K. Mima, K.A. Tanaka, R. Kodama, T. Johzaki, H. Nagatomo, H. Shiraga, N. Miyanaga, M. Murakami, H. Azechi, M. Nakai, T. Norimatsu, K. Nagai, T. Taguchi, H. Sakagami
  • Journal Title: Eur. J. Phys. D 44(2) Pages: 259-264
  • Peer Reviewed
• [Journal Article] 展望レーザー核融合燃料を支えるカプセルとエアロゲル (2007)
  • Author(s): 長井圭治
  • Journal Title: 高分子KOBUNSHI High Polymers, Japan 56(11) Pages: 884-888
  • Peer Reviewed
• [Presentation] Encapsulation of low density plastic foam materials for the fast ignition targets and their mass production using microfluid devices (2010)
  • Author(s): Keiji NAGAI Tomokazu Iyoda, Xiang Wei Zhao, ZhongZe Gu, Akifumi Iwamoto, Han Yang, Takayoshi Norimatsu
  • Organizer: 5th IAEA Technical Meeting on Physics and Technology of Inertial Fusion Energy
  • Place of Presentation: IAEA Headquaters Vienna
  • Year and Date: 20100324-20100326
• [Presentation] Encapsulation of sub-millimeter-sized organoaerogel with high concentricity (2009)
  • Author(s): Keiji NAGAI, Han Yang, Fuyumi Ito
  • Organizer: 11th Pacific polymer conference
  • Place of Presentation: Carens
  • Year and Date: 20091206-20091211
• [Presentation] Overview of the low-density materials for capsule fabrication (2008)
  • Author(s): Keiji NAGAI
  • Organizer: 2nd Japan-China bilateral workshop on Target materials
  • Place of Presentation: ILE, Osaka
  • Year and Date: 20081116-20081119
• [Presentation] Low-density materials and their capsule fabrication for laser plasma production (2008)
  • Author(s): Keiji NAGAI
  • Organizer: 3rd Symposium on Integrated Integrated Molecular/Materials Molecular/Materials Engineering (ISIMME 2008)
  • Place of Presentation: Xian
  • Year and Date: 20081105-20081108
• [Presentation] Low density aerogel capsule for FIREX(Fast Ignition Realization EXperiments) project-control of nanostructure- (2008)
  • Author(s): Keiji NAGAI, Takayoshi NORIMATSU, Mitsuo NAKAI, Hang YANG, Kentaro YAMANAKA, Takeshi FUJIMURA, Liqin GE, Nobukatsu NEMOTO, Tomonori SHIMOYAMA, Akifumi IWAMOTO, Toshiyuki MITO, Hiroyuki SHIRAGA, Hiroshi AZECHI, Kunioki MIMA
  • Organizer: 2nd European Target Fabrication Workshop
  • Place of Presentation: Oxford, UK
  • Year and Date: 20081027-20081028
• [Presentation] Encapsulation of Low Density Plastic Foam Materials for Fast Ignition Realization Experiments (FIREX)-Control of Microstructure and Density- (2008)
  • Author(s): Keiji NAGAI
  • Organizer: 22nd IAEA Fusion Energy Conference
  • Place of Presentation: Geneva, Switzerland
  • Year and Date: 20081013-20081018
• [Presentation] Low density aerogel capsule for FIREX(Fast Ignition Realization EXperiments) project-control of nanostructure- (2008)
  • Author(s): Keiji NAGAI, Takayoshi NORIMATSU, Mitsuo NAKAI, Hang YANG, Kentaro YAMANAKA, Takeshi FUJIMURA, Liqin GE, Nobukatsu NEMOTO, Tomonori SHIMOYAMA, Akifumi IWAMOTO, Toshiyuki MITO, Hiroyuki SHIRAGA, Hiroshi AZECHI, Kunioki MIMA
  • Organizer: Target Fabrication Specialists Meeting
  • Place of Presentation: Lake Tahoe, Calfornia
  • Year and Date: 20080513-20080515
• [Presentation] エアロゲルカプセルのナノ構造制御とレーザー核融合ターゲットへの応用 (2008)
  • Author(s): ヤンハン、長井圭治・中井光男・乗松孝好
  • Organizer: 第57回高分子討論会
  • Place of Presentation: 大阪市立大学
  • Year and Date: 2008-09-26
• [Presentation] Thin shell aerogel fabrication for FIREX-I target using high viscosity (phloroglucinol carboxylic acid)/formaldehyde solution (2008)
  • Author(s): 楊ハン・長井圭治・中井光男・乗松孝好、疇地宏、三間圀興
  • Organizer: 第7回核融合エネルギー連合講演会
  • Place of Presentation: 青森市男女共同参画プラザ
  • Year and Date: 2008-06-21
• [Presentation] 2, 4, 6-トリヒドロキシ安息香酸/ホルムアルデヒド樹脂低密度アエロゲルシエルの製作 (2008)
  • Organizer: 日本化学会
  • Place of Presentation: 立教大学
  • Year and Date: 2008-03-27
• [Presentation] Current status of LFEX laser and Target fabrication for FIREX-I project (2007)
  • Author(s): NORIMATSU Takayoshi, NAGAI Keiji, YANG Han, YAMANAKA Kentaro, FUJIMURA, Takashi, NEMOTO Nobukatsu, NAKAI Mitsuo, IWAMOTO Akifumi, SHIRAGA Hiroyuki, AZECHI Hiroshi, MIMA Kunioki
  • Organizer: he 3rd Moscow Workshop on Targets and Applications, Lebedev Physical Institute
  • Place of Presentation: Moscow, Russia
  • Year and Date: 20071015-20071019
• [Presentation] Encapsulation of Low Density Materials for the First Stage of Fast Ignition Realization Experiment (FIREX-I) (2007)
  • Author(s): Keiji Nagai, Han Yang, Takeshi Fujimura, Mitsuo Nakai, Takayoshi Norimatsu, Akifumi Iwamoto, Hiroshi Azechi, Kunioki Mima
  • Organizer: 2007 China-Japan Bilateral Workshop on Target Materials
  • Place of Presentation: HuangShan Media Hotel, HuangShan, Anhui
  • Year and Date: 20070729-20070801
• [Presentation] Encapsulation of Low Density Materials for the First Stage of Fast Ignition Realization Experiment (FIREX-I)-Control of Microstructure and Gelation Process using a Phase-Transfer Catalyst and Tailored Polymers- (2007)
  • Author(s): Keiji NAGAI, Mitsio Nakai, Takayoshi Norimatsu, Akifumi Iwamoto, Toshiyuki Mito, Hiroshi Azechi, Kunioki Mima
  • Organizer: 22nd Symposium on Fusion Engineering (22nd SOFE), Albuequerque Convention Center
  • Place of Presentation: Albuequerque, New Mexico
  • Year and Date: 20070617-20070621
• [Presentation] 高速点火原理実証実験(FIREX)用燃料保持プラスチックの研究(3) (2007)
  • Author(s): 長井圭治, 乗松孝好, 中井光男, 楊ハン, 山中健太郎, 藤村猛, 葛麗芹, 根本修克, 下山智徳, 岩本晃史, 三戸利行, 白神宏之, 疇地宏, 三間圀興
  • Organizer: プラズマ・核融合学会
  • Place of Presentation: イーグレ姫路
  • Year and Date: 2007-11-28
• [Presentation] Control of Nanostructure and Thickness of Foam Capsule for FIREX-I using Phase-Transfer Catalyst and Tailored Polymers (2007)
  • Author(s): NAGAI Keiji, YANG Han, YAMANAKA Kentaro, FUJIMURA, Takashi, NEMOTO Nobukatsu, NAKAI Mitsuo, NORIMATSU Takayoshi, IWAMOTO Akifumi, SHIRAGA Hiroyuki, AZECHI Hiroshi, MIMA Kunioki
  • Organizer: 5th International Conference on Inertial Fusion and its Applications (IFSA 2007)
  • Place of Presentation: Kobe Convention center, Kobe, Hyogo
  • Year and Date: 2007-09-14
• [Presentation] The investigation on the mechanism of phloroglucinolcarboxylicacid/formaldehyd e gelation process and obvious density increase before and after extraction drying (2007)
  • Author(s): H. Yang, K. Nagai, M. Nakai, T. Norimatsu
  • Organizer: 2007 China-Japan Bilateral Workshop on Target Materials Jul. 28-Aug. 1, 2007
  • Place of Presentation: HuangShan Media Hotel, HuangShan, Anhui, China
  • Year and Date: 2007-07-30
• [Presentation] レゾルシノール/ホルムアルデヒドと2, 4, 6-トリヒドロキシ安息香酸/ホルムアルデヒド混合アエロゲルの製作 (2007)
  • Author(s): 楊ハン・長井圭治・中井光男・乗松孝好
  • Organizer: 第56回高分子学会年次大会
  • Place of Presentation: 京都国際会館
  • Year and Date: 2007-05-30
• [Presentation] ポリスチレン側鎖のエポキシ基間の開環反応によるゲルとそのキセロゲルのフォーム構造 (2007)
  • Author(s): 山中健太郎・長井圭治・中井光男・乗松孝好、根本修克・野村香織・下山智徳
  • Organizer: 第56回高分子学会年次大会
  • Place of Presentation: 京都国際会館
  • Year and Date: 2007-05-30
• [Presentation] レーザー核融合ターゲット材料創成のための架橋性ポリスチレン誘導体の合成 (2007)
  • Author(s): 下山智徳、野村香織、根本修克、山中健太郎、長井圭治、乗松孝好
  • Organizer: 第56回高分子学会年次大会
  • Place of Presentation: 京都国際会館
  • Year and Date: 2007-05-30
• [Presentation] 親水性基を有する新規ポリスチレン誘導体の合成 (2007)
  • Author(s): 服部正明、根本修克、長井圭治、乗松孝好
  • Organizer: 第56回高分子学会年次大会
  • Place of Presentation: 京都国際会館
  • Year and Date: 2007-05-29
• [Book] ナノテクノロジーが支える核融合ターゲット (2007)
  • Author(s): 長井圭治
  • Total Pages: 98
  • Publisher: 日本実業出版社
• [Remarks]
  • URL: http://www.res.titech.ac.jp/~hikari/project/firex_target_materials.html