Basic Information

Affiliated programs (koza)

• Graduate School of Engineering, 機械理工学専攻 粒子線物性学講座, 教授

Professional Memberships

• Mineralogical Society of America
• American Geophysical Union
• The Physical Sociery of Japan
• The Japanese Society for Neutron Science
• Japan Association of Mineralogical Sciences
• The Japan Society of High Pressure Science and Technology

Academic Degree

• 修士（理学）(東京工業大学)
• 博士（理学）(東京工業大学)

Research History

• From Aug. 2020, To Present

  Kyoto University, Institute for Integrated Radiation and Nuclear Science, Professor
• From Apr. 2016, To Jul. 2020

  Okayama University, The Institute for Planetary Materials, 准教授
• From Jan. 2008, To Mar. 2016

  Okayama University, 地球物質科学研究センター, 准教授
• From Apr. 2006, To Dec. 2007

  Nagoya University, Nagoya University, 教員（兼務）
• From May 1998, To Dec. 2007

  Nagoya University, School of Science, 助教
• From Apr. 2003, To Apr. 2005

  日本学術振興会, 海外特別研究員（兼任）
• From Oct. 1998, To Sep. 2001

  科学技術振興事業団, さきがけ研究21研究員（兼任）
• From Apr. 1998, To May 1998

  日本学術振興会, 特別研究員

ID,URL

• ORCID ID

  0000-0001-6907-0945

• J-Global ID

  200901031050028187

• Researcher number

  40303599

researchmap URL

• https://researchmap.jp/read0056040

Research

Research Interests

• Mineralogy
• Geophysics
• Hydrogen
• planetary materials
• High-pressure synthesis
• Shock compression
• Neutron scattering
• Crystal structure refinement

Research Areas

• Nanotechnology/Materials, Inorganic compounds/materials chemistry
• Energy, Quantum beam science
• Natural sciences, Solid earth science
• Natural sciences, Space and planetary science

Papers

• Direct measurement of lattice behavior during femtosecond laser-driven shock front formation in copper

  Naoya Egashira; Tomoki Matsuda; Takuo Okuchi; Yusuke Seto; Yusuke Ito; Takahisa Shobu; Nobuhiko Nakanii; Yuichi Inubushi; Tadashi Togashi; Kohei Miyanishi; Tsutomu Mashimo; Tomokazu Sano

  Journal of Applied Physics, 12 Mar. 2025, Peer-reviewed

  
• Hydrogen Dissolution Mechanisms in Bridgmanite by First-Principles Calculations and Infrared Spectroscopy

  Yanyao Zhang; Jun Tsuchiya; ChingChien Li; Zefang Ye; Wei Yan; Takuo Okuchi; Shun-ichiro Karato; Jennifer Kung; Jung-Fu Lin

  Journal of Geophysical Research Solid Earth, 2025, Peer-reviewed

  
• Atomistic Mechanism of Al Substitution Effects on the Ferroelastic Post-stishovite Transition by High-Pressure Single-Crystal X-Ray Diffraction

  Yanyao Zhang; Stella Chariton; Vitali B. Prakapenka; Takuo Okuchi; Jung-Fu Lin

  American Mineralogist, 24 Oct. 2024, Peer-reviewed

  
• Hydrogen incorporation mechanism in the lower-mantle bridgmanite

  Narangoo Purevjav; Naotaka Tomioka; Shigeru Yamashita; Keiji Shinoda; Sachio Kobayashi; Kenji Shimizu; Motoo Ito; Suyu Fu; Jesse Gu; Christina Hoffmann; Jung-Fu Lin; Takuo Okuchi

  American Mineralogist, 01 Jun. 2024, Peer-reviewed

  
• Single-crystal X-ray diffraction on the structure of (Al,Fe)-bearing bridgmanite in the lower mantle

  Suyu Fu; Stella Chariton; Yanyao Zhang; Takuo Okuchi; Vitali B. Prakapenka; Jung-Fu Lin

  American Mineralogist, 01 May 2024, Peer-reviewed

  
• Deformation microstructures in shock-compressed single crystal and powdered rutile

  Yuhei Umeda; Yuma Nagai; Naotaka Tomioka; Toshimori Sekine; Masashi Miyakawa; Takamichi Kobayashi; Hitoshi Yusa; Takuo Okuchi

  Journal of Mineralogical and Petrological Sciences, 2024, Peer-reviewed, Last author

  
• Direct imaging of shock wave splitting in diamond at Mbar pressure

  Sergey Makarov; Sergey Dyachkov; Tatiana Pikuz; Kento Katagiri; Hirotaka Nakamura; Vasily Zhakhovsky; Nail Inogamov; Victor Khokhlov; Artem Martynenko; Bruno Albertazzi; Gabriel Rigon; Paul Mabey; Nicholas J. Hartley; Yuichi Inubushi; Kohei Miyanishi; Keiichi Sueda; Tadashi Togashi; Makina Yabashi; Toshinori Yabuuchi; Takuo Okuchi; Ryosuke Kodama; Sergey Pikuz; Michel Koenig; Norimasa Ozaki

  Matter and Radiation at Extremes, 01 Nov. 2023, Peer-reviewed

  
• X-ray free electron laser observation of ultrafast lattice behaviour under femtosecond laser-driven shock compression in iron.

  Tomokazu Sano; Tomoki Matsuda; Akio Hirose; Mitsuru Ohata; Tomoyuki Terai; Tomoyuki Kakeshita; Yuichi Inubushi; Takahiro Sato; Kohei Miyanishi; Makina Yabashi; Tadashi Togashi; Kensuke Tono; Osami Sakata; Yoshinori Tange; Kazuto Arakawa; Yusuke Ito; Takuo Okuchi; Tomoko Sato; Toshimori Sekine; Tsutomu Mashimo; Nobuhiko Nakanii; Yusuke Seto; Masaya Shigeta; Takahisa Shobu; Yuji Sano; Tomonao Hosokai; Takeshi Matsuoka; Toshinori Yabuuchi; Kazuo A Tanaka; Norimasa Ozaki; Ryosuke Kodama

  Scientific reports, Aug. 2023, Peer-reviewed

  
• Quasi-elastic neutron scattering studies on fast dynamics of water molecules in tetra-n-butylammonium bromide semiclathrate hydrate

  Jin Shimada; Atsushi Tani; Takeshi Yamada; Takeshi Sugahara; Takayuki Hirai; Takuo Okuchi

  Applied Physics Letters, 24 Jul. 2023, Peer-reviewed, Last author

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• Single-Crystal Elasticity of (Al,Fe)-bearing Bridgmanite up to 82 GPa

  Suyu Fu; Yanyao Zhang; Takuo Okuchi; Jung-Fu Lin

  American Mineralogist, 01 May 2022, Peer-reviewed

  
• Phase transition and melting in zircon by nanosecond shock loading

  Sota Takagi; Kouhei Ichiyanagi; Atsushi Kyono; Nobuaki Kawai; Shunsuke Nozawa; Norimasa Ozaki; Yusuke Seto; Takuo Okuchi; Souma Nitta; Satoru Okada; Kohei Miyanishi; Keiichi Sueda; Tadashi Togashi; Toshinori Yabuuchi

  Physics and Chemistry of Minerals, May 2022, Peer-reviewed

  
• Elasticity of Hydrated Al‐Bearing Stishovite and Post‐Stishovite: Implications for Understanding Regional Seismic V _S Anomalies along Subducting Slabs in the Lower Mantle

  Yanyao Zhang; Suyu Fu; Shun‐ichiro Karato; Takuo Okuchi; Stella Chariton; Vitali B. Prakapenka; Jung‐Fu Lin

  Journal of Geophysical Research: Solid Earth, 05 Apr. 2022, Peer-reviewed

  
• High thermal conductivity of stishovite promotes rapid warming of a sinking slab in Earth's mantle

  Wen-Pin Hsieh; Enrico Marzotto; Yi-Chi Tsao; Takuo Okuchi; Jung-Fu Lin

  Earth and Planetary Science Letters, Apr. 2022, Peer-reviewed

  
• Hugoniot equation-of-state and structure of laser-shocked polyimide C22H10N2O5

  K. Katagiri; N. Ozaki; D. Murayama; K. Nonaka; Y. Hironaka; Y. Inubushi; K. Miyanishi; H. Nakamura; T. Okuchi; T. Sano; Y. Seto; K. Shigemori; K. Sueda; T. Togashi; Y. Umeda; M. Yabashi; T. Yabuuchi; R. Kodama

  Physical Review B, 10 Feb. 2022, Peer-reviewed

  
• Nonlinear effects of hydration on high-pressure sound velocities of rhyolitic glasses

  Jesse T. Gu; Suyu Fu; James E. Gardner; Shigeru Yamashita; Takuo Okuchi; Jung-Fu Lin

  American Mineralogist, 01 Jul. 2021, Peer-reviewed

  
• Ultrafast olivine-ringwoodite transformation during shock compression

  Takuo Okuchi; Yusuke Seto; Naotaka Tomioka; Takeshi Matsuoka; Bruno Albertazzi; Nicholas J. Hartley; Yuichi Inubushi; Kento Katagiri; Ryosuke Kodama; Tatiana A. Pikuz; Narangoo Purevjav; Kohei Miyanishi; Tomoko Sato; Toshimori Sekine; Keiichi Sueda; Kazuo A. Tanaka; Yoshinori Tange; Tadashi Togashi; Yuhei Umeda; Toshinori Yabuuchi; Makina Yabashi; Norimasa Ozaki

  Nature Communications, Jul. 2021, Peer-reviewed, Lead author, Corresponding author

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• Quasielastic Neutron Scattering for Analyzing Transport Dynamics of Chemically-Bound Hydrogen in Minerals

  Takuo OKUCHI

  Nihon Kessho Gakkaishi, 31 May 2021, Peer-reviewed, Invited, Lead author, Corresponding author

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• Liquid Structure of Tantalum under Internal Negative Pressure

  K. Katagiri; N. Ozaki; S. Ohmura; B. Albertazzi; Y. Hironaka; Y. Inubushi; K. Ishida; M. Koenig; K. Miyanishi; H. Nakamura; M. Nishikino; T. Okuchi; T. Sato; Y. Seto; K. Shigemori; K. Sueda; Y. Tange; T. Togashi; Y. Umeda; M. Yabashi; T. Yabuuchi; R. Kodama

  Physical Review Letters, 28 Apr. 2021, Peer-reviewed

  
• Poirierite, a dense metastable polymorph of magnesium iron silicate in shocked meteorites

  Naotaka Tomioka; Luca Bindi; Takuo Okuchi; Masaaki Miyahara; Toshiaki Iitaka; Zhi Li; Tsutomu Kawatsu; Xiande Xie; Narangoo Purevjav; Riho Tani; Yu Kodama

  Communications Earth & Environment, Jan. 2021, Peer-reviewed

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• Shock-Compression Experiments of Planetary Materials Driven by Power Lasers

  Takuo Okuchi; Norimsa Ozki

  The Review of Laser Engineering, Jan. 2021, Peer-reviewed, Invited, Lead author, Corresponding author

  
• Ultrafast In-Situ Analysis of Shock-Compressed Planetary Materials

  Takuo OKUCHI; Norimasa OZAKI

  The Review of High Pressure Science and Technology, 2021, Peer-reviewed, Invited, Lead author, Corresponding author

  
• Precometary organic matter: A hidden reservoir of water inside the snow line

  Hideyuki Nakano; Naoki Hirakawa; Yasuhiro Matsubara; Shigeru Yamashita; Takuo Okuchi; Kenta Asahina; Ryo Tanaka; Noriyuki Suzuki; Hiroshi Naraoka; Yoshinori Takano; Shogo Tachibana; Tetsyua Hama; Yasuhiro Oba; Yuki Kimura; Naoki Watanabe; Akira Kouchi

  Scientific Reports, Dec. 2020, Peer-reviewed

  
• Strong hydrogen bonding in a dense hydrous magnesium silicate discovered by neutron Laue diffraction

  Narangoo Purevjav; Takuo Okuchi; Christina Hoffmann

  IUCr Journal, May 2020, Peer-reviewed

  
• The degree of permanent densification in oxide glasses upon extreme compression up to 24 GPa at room temperature,

  Sung Keun Lee; Kwan Young Mun; Yong-Hyun Kim; Juho Lhee; Takuo Okuchi; Jung-Fu Lin

  Journal of Physical Chemistry Letters, Mar. 2020, Peer-reviewed

  
• Rheological property of H2O ice VI inferred from its self-diffusion: Implications for the mantle dynamics of large icy bodies

  Naoki Noguchi; Takuo Okuchi

  Icarus, Jan. 2020, Peer-reviewed, Last author

  
• Laser-driven shock compression of “synthetic planetary mixtures” of water, ethanol, and ammonia

  M. Guarguaglini; J.-A. Hernandez; T. Okuchi; P. Barroso; A. Benuzzi-Mounaix; M. Bethkenhagen; R. Bolis; E. Brambrink; M. French; Y. Fujimoto; R. Kodama; M. Koenig; F. Lefevre; K. Miyanishi; N. Ozaki; R. Redmer; T. Sano; Y. Umeda; T. Vinci; A. Ravasio

  Scientific Reports, Dec. 2019, Peer-reviewed

  
• Water Concentration in Single‐Crystal (Al,Fe)‐Bearing Bridgmanite Grown From the Hydrous Melt: Implications for Dehydration Melting at the Topmost Lower Mantle

  Suyu Fu; Jing Yang; Shun-ichiro Karato; Alexander Vasiliev; Mikhail Yu. Presniakov; Alexander G. Gavrilliuk; Anna G. Ivanova; Erik H. Hauri; Takuo Okuchi; Narangoo Purevjav; Jung-Fu Lin

  Geophysical Research Letters, Sep. 2019, Peer-reviewed

  
• Single-crystal elasticity of (Al,Fe)-bearing bridgmanite and seismic shear wave radial anisotropy at the topmost lower mantle

  Fu Suyu; Yang Jing; Tsujino Noriyoshi; Okuchi Takuo; Purevjav Narangoo; Lin Jung-Fu

  EARTH AND PLANETARY SCIENCE LETTERS, 15 Jul. 2019, Peer-reviewed

  
• Laser-shock compression experiment on magnesium hydride

  Morioka, S.; Ozaki, N.; Hosomi, M.; Katagiri, K.; Matsuoka, T.; Miyanishi, K.; Okuchi, T.; Sano, T.; Umeda, Y.; Kodama, R.

  High Energy Density Physics, 2019, Peer-reviewed

  
• Iron isotopic fractionation in mineral phases from Earth's lower mantle: Did terrestrial magma ocean crystallization fractionate iron isotopes?

  Yang Hong; Lin Jung-Fu; Hu Michael Y; Roskosz Mathieu; Bi Wenli; Zhao Jiyong; Alp Esen E; Liu Jin; Liu Jiachao; Wentzowitch Renata M; Okuchi Takuo; Dauphas Nicolas

  Earth and Planetary Science Letters, 2019, Peer-reviewed

  
• Quasielastic neutron scattering of brucite for analyzing hydrogen transport at the atomic scale

  Okuchi Takuo; Tomioka Naotaka; Purevjav Narangoo; Shibata Kaoru

  Journal of Applied Crystallography, Dec. 2018, Peer-reviewed, Lead author, Corresponding author

  
• Melting behavior of the lower-mantle ferropericlase across the spin crossover: Implication for the ultra-low velocity zones at the lowermost mantle

  Fu Suyu; Yang Jing; Zhang Youjun; Liu Jiachao; Prakapenka B. Vitali; Okuchi Takuo; Lin Jung-Fu

  Earth and Planetary Science Letters, Dec. 2018, Peer-reviewed

  
• Abnormal Elasticity of Fe-Bearing Bridgmanite in the Earth's Lower Mantle

  Suyu Fu; Jing Yang; Yanyao Zhang; Takuo Okuchi; Catherine McCammon; Hyo-Im Kim; Sung Keun Lee; Jung-Fu Lin

  Geophysical Research Letters, 28 May 2018, Peer-reviewed

  
• Effects of iron on the lattice thermal conductivity of Earth’s deep mantle and implications for mantle dynamics

  Wen-Pin Hsieh; Frédéric Deschamps; Takuo Okuchi; Jung-Fu Lin

  Proceedings of the National Academy of Sciences of the United States of America, 17 Apr. 2018, Peer-reviewed

  
• Determination of hydrogen site and occupancy in hydrous Mg2SiO4 spinel by single-crystal neutron diffraction:

  Narangoo Purevjav; Takuo Okuchi; Xiaoping Wang; Christina Hoffmann; Naotaka Tomioka

  Acta Crystallographica Section B: Structural Science, Crystal Engineering and Materials, 01 Feb. 2018, Peer-reviewed

  
• A new high-pressure form of Mg2SiO4 highlighting diffusionless phase transitions of olivine

  Naotaka Tomioka; Takuo Okuchi

  SCIENTIFIC REPORTS, Dec. 2017, Peer-reviewed

  
• Reduced lattice thermal conductivity of Fe-bearing bridgmanite in Earth's deep mantle

  Wen-Pin Hsieh; Frederic Deschamps; Takuo Okuchi; Jung-Fu Lin

  JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH, Jul. 2017, Peer-reviewed

  
• Dynamic fracture of tantalum under extreme tensile stress

  Bruno Albertazzi; Norimasa Ozaki; Vasily Zhakhovsky; Anatoly Faenov; Hideaki Habara; Marion Harmand; Nicholas Hartley; Denis Ilnitsky; Nail Inogamov; Yuichi Inubushi; Tetsuya Ishikawa; Tetsuo Katayama; Takahisa Koyama; Michel Koenig; Andrew Krygier; Takeshi Matsuoka; Satoshi Matsuyama; Emma McBride; Kirill Petrovich Migdal; Guillaume Morard; Haruhiko Ohashi; Takuo Okuchi; Tatiana Pikuz; Narangoo Purevjav; Osami Sakata; Yasuhisa Sano; Tomoko Sato; Toshimori Sekine; Yusuke Seto; Kenjiro Takahashi; Kazuo Tanaka; Yoshinori Tange; Tadashi Togashi; Kensuke Tono; Yuhei Umeda; Tommaso Vinci; Makina Yabashi; Toshinori Yabuuchi; Kazuto Yamauchi; Hirokatsu Yumoto; Ryosuke Kodama

  SCIENCE ADVANCES, Jun. 2017, Peer-reviewed

  
• Ultrafast observation of lattice dynamics in laser-irradiated gold foils

  N. J. Hartley; N. Ozaki; T. Matsuoka; B. Albertazzi; A. Faenov; Y. Fujimoto; H. Habara; M. Harmand; Y. Inubushi; T. Katayama; M. Koenig; A. Krygier; P. Mabey; Y. Matsumura; S. Matsuyama; E. E. McBride; K. Miyanishi; G. Morard; T. Okuchi; T. Pikuz; O. Sakata; Y. Sano; T. Sato; T. Sekine; Y. Seto; K. Takahashi; K. A. Tanaka; Y. Tange; T. Togashi; Y. Umeda; T. Vinci; M. Yabashi; T. Yabuuchi; K. Yamauchi; R. Kodama

  APPLIED PHYSICS LETTERS, Feb. 2017, Peer-reviewed

  
• Equation of state and hyperfine parameters of high-spin bridgmanite in the Earth's lower mantle by synchrotron X-ray diffraction and Mossbauer spectroscopy

  Zhu Mao; Fan Wang; Jung-Fu Lin; Suyu Fu; Jing Yang; Xiang Wu; Takuo Okuchi; Naotaka Tomioka; Vitali B. Prakapenka; Yuming Xiao; Paul Chow

  AMERICAN MINERALOGIST, Jan. 2017, Peer-reviewed

  
• Hydrogenation of iron in the early stage of Earth's evolution

  Riko Iizuka-Oku; Takehiko Yagi; Hirotada Gotou; Takuo Okuchi; Takanori Hattori; Asami Sano-Furukawa

  NATURE COMMUNICATIONS, Jan. 2017, Peer-reviewed

  
• In-situ Neutron Diffraction of Iron Hydride in Iron-silicate-water System under High Pressure and High Temperature Condition

  Riko Iizuka-Oku; Takehiko Yagi; Hirotada Gotou; Takuo Okuchi; Takanori Hattori; Asami Sano-Furukawa

  hamon, 2017, Peer-reviewed

  
• Quantitative Analysis of Hydrogen Site and Occupancy in a Deep-Earth Hydrous Mineral by Time-of-Flight Single Crystal Laue Neutron Diffraction

  OKUCHI Takuo; PUREVJAV Narangoo; TOMIOKA Naotaka

  Nihon Kessho Gakkaishi, 2017, Peer-reviewed, Invited, Lead author, Corresponding author

  
• A Peltier cooling diamond anvil cell for low-temperature Raman spectroscopic measurements

  Naoki Noguchi; Takuo Okuchi

  REVIEW OF SCIENTIFIC INSTRUMENTS, Dec. 2016, Peer-reviewed

  
• Quantitative analysis of hydrogen sites and occupancy in deep mantle hydrous wadsleyite using single crystal neutron diffraction

  Narangoo Purevjav; Takuo Okuchi; Naotaka Tomioka; Xiaoping Wang; Christina Hoffmann

  SCIENTIFIC REPORTS, Oct. 2016, Peer-reviewed

  
• EXAFS studies under high pressure by X-ray Raman scattering

  N. Hiraoka; H. Fukui; T. Okuchi

  HIGH PRESSURE RESEARCH, Sep. 2016, Peer-reviewed

  
• Indirect monitoring shot-to-shot shock waves strength reproducibility during pump-probe experiments

  T. A. Pikuz; A. Ya. Faenov; N. Ozaki; N. J. Hartley; B. Albertazzi; T. Matsuoka; K. Takahashi; H. Habara; Y. Tange; S. Matsuyama; K. Yamauchi; R. Ochante; K. Sueda; O. Sakata; T. Sekine; T. Sato; Y. Umeda; Y. Inubushi; T. Yabuuchi; T. Togashi; T. Katayama; M. Yabashi; M. Harmand; G. Morard; M. Koenig; V. Zhakhovsky; N. Inogamov; A. S. Safronova; A. Stafford; I. Yu. Skobelev; S. A. Pikuz; T. Okuchi; Y. Seto; K. A. Tanaka; T. Ishikawa; R. Kodama

  JOURNAL OF APPLIED PHYSICS, Jul. 2016, Peer-reviewed

  
• High-spin Fe2+ and Fe3+ in single-crystal aluminous bridgmanite in the lower mantle

  Jung-Fu Lin; Zhu Mao; Jing Yang; Jin Liu; Yuming Xiao; Paul Chow; Takuo Okuchi

  GEOPHYSICAL RESEARCH LETTERS, Jul. 2016, Peer-reviewed

  
• Self-diffusion of protons in H2O ice VII at high pressures: Anomaly around 10 GPa

  Naoki Noguchi; T. Okuchi

  The Journal of Chemical Physics, 21 Jun. 2016, Peer-reviewed

  
• Hydrogen sites in the dense hydrous magnesian silicate phase E: a pulsed neutron powder diffraction study

  Naotaka Tomioka; Takuo Okuchi; Narangoo Purevjav; Jun Abe; Stefanus Harjo

  PHYSICS AND CHEMISTRY OF MINERALS, Apr. 2016, Peer-reviewed

  
• Hydrogen site analyses of dense hydrous mantle minerals by pulsed neutron powder diffraction

  Takuo Okuchi; Naotaka Tomioka; Narangoo Purevjav

  Review of High Pressure Science and Technology/Koatsuryoku No Kagaku To Gijutsu, 2016, Peer-reviewed, Invited, Lead author, Corresponding author

  
• Forge-Hardened TiZr Null-Matrix Alloy for Neutron Scattering under Extreme Conditions

  Takuo Okuchi; Akinori Hoshikawa; Toru Ishigaki

  METALS, Dec. 2015, Peer-reviewed, Lead author, Corresponding author

  
• Elasticity of Ferropericlase across the Spin Crossover in the Earth's Lower Mantle

  Jing Yang; Xinyue Tong; Jung-Fu Lin; Takuo Okuchi; Naotaka Tomioka

  SCIENTIFIC REPORTS, Dec. 2015, Peer-reviewed

  
• Experimental study of thermal conductivity at high pressures: Implications for the deep Earth's interior

  Alexander F. Goncharov; Sergey S. Lobanov; Xiaojing Tan; Gregory T. Hohensee; David G. Cahill; Jung-Fu Lin; Sylvia-Monique Thomas; Takuo Okuchi; Naotaka Tomioka

  PHYSICS OF THE EARTH AND PLANETARY INTERIORS, Oct. 2015, Peer-reviewed

  
• Synthesis of large and homogeneous single crystals of water-bearing minerals by slow cooling at deep-mantle pressures

  Takuo Okuchi; Narangoo Purevjav; Naotaka Tomioka; Jung-Fu Lin; Takahiro Kuribayashi; Louise Schoneveld; Huijeong Hwang; Naoya Sakamoto; Noriyuki Kawasaki; Hisayoshi Yurimoto

  AMERICAN MINERALOGIST, Jul. 2015, Peer-reviewed, Lead author, Corresponding author

  
• P-rho-T measurements of H2O up to 260 GPa under laser-driven shock loading

  T. Kimura; N. Ozaki; T. Sano; T. Okuchi; T. Sano; K. Shimizu; K. Miyanishi; T. Terai; T. Kakeshita; Y. Sakawa; R. Kodama

  JOURNAL OF CHEMICAL PHYSICS, Apr. 2015, Peer-reviewed

  
• Hydrogen site analysis of hydrous ringwoodite in mantle transition zone by pulsed neutron diffraction

  Narangoo Purevjav; Takuo Okuchi; Naotaka Tomioka; Jun Abe; Stefanus Harjo

  GEOPHYSICAL RESEARCH LETTERS, Oct. 2014, Peer-reviewed, Corresponding author

  
• Structure refinement of sub-cubic-mm volume sample at high pressures by pulsed neutron powder diffraction: application to brucite in an opposed anvil cell

  Takuo Okuchi; Naotaka Tomioka; Narangoo Purevjav; Jun Abe; Stefanus Harjo; Wu Gong

  HIGH PRESSURE RESEARCH, Jun. 2014, Peer-reviewed, Lead author, Corresponding author

  
• Pulsed neutron powder diffraction at high pressure by a capacity-increased sapphire anvil cell

  Takuo Okuchi; Masashi Yoshida; Yoshiki Ohno; Naotaka Tomioka; Narangoo Purevjav; Toyotaka Osakabe; Stefanus Harjo; Jun Abe; Kazuya Aizawa; Shigeo Sasaki

  HIGH PRESSURE RESEARCH, Dec. 2013, Peer-reviewed, Lead author, Corresponding author

  
• H-D interdiffusion in brucite at pressures up to 15 GPa

  Xinzhuan Guo; Takashi Yoshino; Takuo Okuchi; Naotaka Tomioka

  American Mineralogist, Nov. 2013, Peer-reviewed

  
• Hydrogen absorption reaction kinetics and diffusion measurements in hydrogen clathrate hydrate at high pressure

  Okuchi Takuo

  Low Temperature Science, 2013, Peer-reviewed, Invited, Lead author, Corresponding author

  
• Collision and Diffusion Dynamics of Dense Molecular Hydrogen by Diamond Anvil Cell Nuclear Magnetic Resonance

  Takuo Okuchi

  JOURNAL OF PHYSICAL CHEMISTRY C, Jan. 2012, Peer-reviewed, Invited, Lead author, Corresponding author

  
• Equation of states measurements of water at Megabar pressures using intense laser-shock compression

  Kimura T; Ozaki N; Okuchi T; Sano T; Shimizu K; Miyanishi K; Endo T; Jitsui T

  Planetary People, 25 Mar. 2011, Peer-reviewed

  
• Laser-shock compression and Hugoniot measurements of liquid hydrogen to 55 GPa

  T. Sano; N. Ozaki; T. Sakaiya; K. Shigemori; M. Ikoma; T. Kimura; K. Miyanishi; T. Endo; A. Shiroshita; H. Takahashi; T. Jitsui; Y. Hori; Y. Hironaka; A. Iwamoto; T. Kadono; M. Nakai; T. Okuchi; K. Otani; K. Shimizu; T. Kondo; R. Kodama; K. Mima

  PHYSICAL REVIEW B, Feb. 2011, Peer-reviewed

  
• Phase boundary between perovskite and post-perovskite structures in MnGeO3 determined by in situ X-ray diffraction measurements using sintered diamond anvils

  Daisuke Yamazaki; Eiji Ito; Tomoo Katsura; Takashi Yoshino; Shuangmeng Zhai; Hiroshi Fukui; Anton Shatskiy; Xinzhuan Guo; Shuangming Shan; Takuo Okuchi; Yoshinori Tange; Yuji Higo; Ken-ichi Funakoshi

  AMERICAN MINERALOGIST, Jan. 2011, Peer-reviewed

  
• Resonant X-ray emission study of the lower-mantle ferropericlase at high pressures

  Jung-Fu Lin; Zhu Mao; Ignace Jarrige; Yuming Xiao; Paul Chow; Takuo Okuchi; Nozomu Hiraoka; Steven D. Jacobsen

  AMERICAN MINERALOGIST, Aug. 2010, Peer-reviewed

  
• Micro-/nanostructural investigation of laser-cut surfaces of single- and polycrystalline diamonds

  Hiroaki Ohfuji; Takuo Okuchi; Shoko Odake; Hiroyuki Kagi; Hitoshi Sumiya; Tetsuo Irifune

  DIAMOND AND RELATED MATERIALS, Jul. 2010, Peer-reviewed

  
• Significant static pressure increase in a precompression cell target for laser-driven advanced dynamic compression experiments

  T. Kimura; N. Ozaki; T. Okuchi; T. Terai; T. Sano; K. Shimizu; T. Sano; M. Koenig; A. Hirose; T. Kakeshita; Y. Sakawa; R. Kodama

  PHYSICS OF PLASMAS, May 2010, Peer-reviewed

  
• Development of high-pressure technique for single-crystal magnetic neutron diffraction under 10 GPa

  Toyotaka Osakabe; Hiroki Yamauchi; Takuo Okuchi

  Review of High Pressure Science and Technology/Koatsuryoku No Kagaku To Gijutsu, 2010, Peer-reviewed

  
• Powder neutron diffraction using nano-polycrystalline diamond as opposed anvils

  Takuo Okuchi; Shigeo Sasaki; Yoshiki Ohno; Kazuki Komatsu; Hiroyuki Kagi; Hiroshi Arima; Jun Abe; Takanori Hattori; Asami Sano; Toyotaka Sakabe; Wataru Utsumi; Stefanus Harjo; Takayoshi Ito; Kazuya Aizawa; Tetsuo Irifune

  Review of High Pressure Science and Technology/Koatsuryoku No Kagaku To Gijutsu, 2010, Peer-reviewed, Lead author, Corresponding author

  
• Micromachining and surface processing of the super-hard nano-polycrystalline diamond by three types of pulsed lasers

  Takuo Okuchi; Hiroaki Ohfuji; Shoko Odake; Hiroyuki Kagi; Syohei Nagatomo; Mitsuru Sugata; Hitoshi Sumiya

  APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING, Sep. 2009, Peer-reviewed, Lead author, Corresponding author

  
• Shock Hugoniot and temperature data for polystyrene obtained with quartz standard

  N. Ozaki; T. Sano; M. Ikoma; K. Shigemori; T. Kimura; K. Miyanishi; T. Vinci; F. H. Ree; H. Azechi; T. Endo; Y. Hironaka; Y. Hori; A. Iwamoto; T. Kadono; H. Nagatomo; M. Nakai; T. Norimatsu; T. Okuchi; K. Otani; T. Sakaiya; K. Shimizu; A. Shiroshita; A. Sunahara; H. Takahashi; R. Kodama

  PHYSICS OF PLASMAS, Jun. 2009, Peer-reviewed

  
• Pulsed laser processing of nano-polycrystalline diamond: A comparative study with single crystal diamond

  Shoko Odake; Hiroaki Ohfuji; Takuo Okuchi; Hiroyuki Kagi; Hitoshi Sumiya; Tetsuo Irifune

  DIAMOND AND RELATED MATERIALS, May 2009, Peer-reviewed

  
• Neutron powder diffraction under high pressure at J-PARC

  Wataru Utsumi; Hiroyuki Kagi; Kazuki Komatsu; Hiroshi Arima; Takaya Nagai; Takuo Okuchi; Takashi Kamiyama; Yoshiya Uwatoko; Kazuyuki Matsubayashi; Takehiko Yagi

  NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, Feb. 2009, Peer-reviewed, Lead author, Corresponding author

  
• Fast diffusion of molecular hydrogen in hydrogen hydrates

  Takuo Okuchi

  Review of High Pressure Science and Technology/Koatsuryoku No Kagaku To Gijutsu, 2009, Peer-reviewed, Invited, Lead author, Corresponding author

  
• X-ray Raman scattering study of MgSiO3 glass at high pressure: Implication for triclustered MgSiO3 melt in Earth's mantle

  Sung Keun Lee; Jung-Fu Lin; Yong Q. Cai; Nozomu Hiraoka; Peter J. Eng; Takuo Okuchi; Ho-Kwang Mao; Yue Meng; Michael Y. Hu; Paul Chow; Jinfu Shu; Baosheng Li; Hiroshi Fukui; Bum Han Lee; Hyun Na Kim; Choong-Shik Yoo

  PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, Jun. 2008, Peer-reviewed

  
• A high pressure experiment of powder neutron diffraction on the HRPD at JRR-3

  Kazuki Komatsu; Hiroshi Arima; Hiroyuki Kagi; Takuo Okuchi; Shigeo Sasaki; Hiroki Yamauchi; Hiroshi Fukazawa; Naoki Igawa; Wataru Utsumi; Takashi Kamiyama

  Review of High Pressure Science and Technology/Koatsuryoku No Kagaku To Gijutsu, 2008, Peer-reviewed

  
• Efficient storage of hydrogen fuel into leaky cages of clathrate hydrate

  Takuo Okuchi; Igor L. Moudrakovski; John. A. Ripmeester

  APPLIED PHYSICS LETTERS, Oct. 2007, Peer-reviewed, Lead author, Corresponding author

  
• Fast molecular transport in hydrogen hydrates by high-pressure diamond anvil cell NMR

  Takuo Okuchi; Masashi Takigawa; Jinfu Shu; Ho-kwang Mao; Russell J. Hemley; Takehiko Yagi

  PHYSICAL REVIEW B, Apr. 2007, Peer-reviewed, Lead author, Corresponding author

  
• Hydrogen hydrates and planetary science

  Okuchi Takuo

  Planetary People, 25 Mar. 2007, Peer-reviewed, Lead author, Corresponding author

  
• Water in Early Earth

  OKUCHI Takuo

  J. Geogr., 25 Feb. 2007, Peer-reviewed, Invited, Lead author, Corresponding author

  
• Electronic bonding transition in compressed SiO2 glass

  Jung-Fu Lin; Hiroshi Fukui; David Prendergast; Takuo Okuchi; Yong Q. Cai; Nozomu Hiraoka; Choong-Shik Yoo; Andrea Trave; Peter Eng; Michael Y. Hu; Paul Chow

  PHYSICAL REVIEW B, Jan. 2007, Peer-reviewed

  
• High pressure nmr of hydrogen-filled ices by diamond anvil cell

  T. Okuchi; M. Takigawa; H. K. Mao; R. J. Hemley; T. Yagi

  Physics and Chemistry of Ice, 2007

  
• Hydrogen bonding and dynamics of methanol by high-pressure diamond-anvil cell NMR

  T Okuchi; GD Cody; HK Mao; RJ Hemley

  JOURNAL OF CHEMICAL PHYSICS, Jun. 2005, Peer-reviewed, Lead author, Corresponding author

  
• Radio frequency probe with improved sensitivity for diamond anvil cell nuclear magnetic resonance

  T Okuchi; RJ Hemley; HK Mao

  REVIEW OF SCIENTIFIC INSTRUMENTS, Feb. 2005, Peer-reviewed, Lead author, Corresponding author

  
• Diamond anvil cell NMR

  Takuo Okuchi

  Review of High Pressure Science and Technology/Koatsuryoku No Kagaku To Gijutsu, 2005, Peer-reviewed, Lead author, Corresponding author

  
• A new type of nonmagnetic diamond anvil cell for nuclear magnetic resonance spectroscopy

  T Okuchi

  PHYSICS OF THE EARTH AND PLANETARY INTERIORS, Jun. 2004, Peer-reviewed, Lead author, Corresponding author

  
• 水の行方ー地球初期進化への新たな問題提起ー

  奥地拓生

  地球化学, 1999, Peer-reviewed, Invited, Lead author, Corresponding author

  
• The melting temperature of iron hydride at high pressures and its implications for the temperature of the Earth's core

  T Okuchi

  JOURNAL OF PHYSICS-CONDENSED MATTER, Dec. 1998, Peer-reviewed, Lead author, Corresponding author

  
• Hydrogen partitioning into molten iron at high pressure: Implications for Earth's core

  T Okuchi

  SCIENCE, Dec. 1997, Peer-reviewed, Lead author, Corresponding author

  

Misc.

• In-situ- and Residual- Strain State Characterization of Femtosecond Laser-Driven Shock Compressed Silicon

  Akira Higuchi; Takuo Okuchi; Yusuke Seto; Takahisa Shobu; Nobuhiko Nakanii; Yuichi Inubushi; Tadashi Togashi; Kohei Miyanishi; Kosuke Nagashio; Tomokazu Sano

  Conference on Lasers and Electro-Optics/Pacific Rim, CLEO-PR 2024 in Proceedings 2024 Conference on Lasers and Electro-Optics Pacific Rim (CLEO-PR), 2024

  
• ナノ秒衝撃圧縮過程における物性と結晶粒サイズ効果

  尾崎典雅; 尾崎典雅; 小寺康博; 片桐健登; 梅田悠平; 知場一航; 中川聖基; 政岡豪流; 奥地拓生; 入舩徹男; 兒玉了祐; 兒玉了祐

  大阪大学レーザー科学研究所共同利用・共同研究成果報告書(Web), 2024

  
• Study on planetary materials under extreme conditions by shock compression method

  梅田悠平; 梅田悠平; 梅田悠平; 奥地拓生; 奥地拓生; 関根利守; 関根利守; 犬伏雄一; 犬伏雄一; 片桐健登; 片桐健登; 兒玉了祐; 兒玉了祐; 宮西宏併; 佐藤友子; 瀬戸雄介; 末田敬一; 富樫格; 富樫格; 富岡尚敬; 籔内俊毅; 籔内俊毅; 矢橋牧名; 矢橋牧名; 尾崎典雅; 尾崎典雅

  日本物理学会講演概要集(CD-ROM), 2024

  
• Structual Evolution of Dynamically-compressed Amorphous Germanium Dioxide

  荒賀大翔; 梅田悠平; 瀬戸雄介; 樽谷洋之介; 奥地拓生

  KURNS-EKR (Web), 2024

  
• Nitrogen chemical speciation of carbonates and clay minerals in a terrestrial Mars analog

  Kurokawa, A; Koike, M; Nakada, R; Tomioka, N; Okuchi, T; Onishi, K; Sumiya, Y; Sugahara, H; Usui, T; Amunsen, HEF

  METEORITICS & PLANETARY SCIENCE, Aug. 2023

  
• Planetary Materials at Dynamic Dense States

  Takuo Okuchi

  J. Plasma Fusion Res., May 2023, Invited, Lead author, Corresponding author

  
• Ultrafast structure transformation of olivine to ringwoodite during laser-driven shock compression

  Takuo Okuchi

  SPring-8/SACLA Research Frontiers 2021, Aug. 2022, Invited, Lead author, Corresponding author

  
• NA

  Takuo Okuchi; Norimasa Ozaki

  Optronics, Jan. 2022, Invited, Lead author

  
• Experimental study on planetary materials under high pressure conditions using laser shock technique

  梅田悠平; 尾崎典雅; 尾崎典雅; 関根利守; BENUZZI-MOUNAIX Alessandra; GUARGUAGLINI Marco; 犬伏雄一; 犬伏雄一; 福井敬也; 上村伸樹; 片桐健登; 兒玉了祐; 兒玉了祐; 松岡健之; 宮西宏併; RAVASIO Alessandra; 佐野孝好; 末田敬一; 富樫格; 富樫格; 矢橋牧名; 矢橋牧名; 籔内俊毅; 籔内俊毅; 奥地拓生

  KURNS-EKR (Web), 2022

  
• ディケイングショックによる相転移カイネティクスに関する実験的検討

  尾崎典雅; 尾崎典雅; 片桐健登; 片桐健登; 奥地拓生; 梅田悠平; 入舩徹男; 佐野孝好; 兒玉了祐; 兒玉了祐

  大阪大学レーザー科学研究所共同利用・共同研究成果報告書(Web), 2022

  
• Ultrafast in-situ Measurement of Crystal Structure Transformation during Hypervelocity Collisions of Asteroids

  OKUCHI Takuo

  SPRING8/SACLA Information, Nov. 2021, Invited, Lead author, Corresponding author

  
• Structure and dynamics of hydrogen in materials of Earth and planetary interiors

  Takuo OKUCHI

  Japanese Magazine of Mineralogical and Petrological Sciences, Apr. 2021, Invited, Lead author, Corresponding author

  
• TOPOTAXIAL INTERGROWTHS OF EPSILON-(MG, FE)(2)SIO4 IN WADSLEYITE AND RINGWOODITE IN SHOCKED CHONDRITES.

  Tomioka N; Okuchi T; Miyahara M; Iitaka T; Purevjav N; Tani R; Kodama Y

  METEORITICS & PLANETARY SCIENCE, Aug. 2019, Peer-reviewed

  
• 水素化物の高圧物性計測および新奇物性探索に関する研究

  榮永茉利; 森岡信太郎; 清水克哉; 奥地拓生; 佐野孝好; 宮西宏併; 梅田悠平; 兒玉了祐; 兒玉了祐; 尾崎典雅; 尾崎典雅

  大阪大学レーザー科学研究所共同利用・共同研究成果報告書(Web), 2019

  
• High Energy Density Matter Studies with High-Power Laser and Its Perspective

  OZAKI Norimasa; SANO Takayoshi; SANO Tomokazu; KIMURA Tomoaki; TANGE Yoshinori; TSUCHIYA Taku; OKUCHI Takuo; SHIMIZU Katsuya; SAKATA Osami; KODAMA Ryosuke

  レーザー研究, 15 Jan. 2013, Peer-reviewed

  
• Neutron diffraction study of hydrous ringwoodite

  Purevjav Narangoo; Okuchi Takuo; Tomioka Naotaka; Abe Jun; Harjo Stefanus; Aizawa Kazuya

  Abstracts for Annual Meeting of Japan Association of Mineralogical Sciences, 2013

  
• ダイヤモンドアンビルセルと高出力レーザーを用いた超高圧・低温状態の生成と新物質探査

  奥地拓生; 尾崎典雅; 尾崎典雅; 佐野孝好; 喜田美佳; 木村友亮; 宮西宏併; 浅海雄人; 浦西宏幸; 近藤良彦; YANG Tsung-Han; 池谷正太郎; 小川剛史; 佐藤友哉; 佐野智一; 佐野智一; 清水克哉; 寺井智之; 生駒大洋; 坂和洋一; 兒玉了祐; 兒玉了祐

  大阪大学レーザーエネルギー学研究センター共同利用・共同研究成果報告書, 2013

  
• High Energy Density Material State Explored with High-Power Laser

  OZAKI N; GREGORI Gianluca; MASHIMO T; NELLIS William J; KIMURA T; MIYANISHI K; INUBUSHI Y; BENUZZI-MOUNAIX A; KOENIG M; OKUCHI T; SANO Takayoshi; SANO Tomokazu; SHIMIZU K; KODAMA R

  レーザー学会研究会報告 = Reports on the Topical meeting of the Laser Society of Japan, 31 Aug. 2012

  
• Laser Shock Experiments and the Applications to Planetary Science

  SANO T.; OZAKI N.; KIMURA T.; MIYANISHI K.; ASAUMI Y.; IKOMA M.; SHIGEMORI K.; SAKAIYA T.; OKUCHI T.; SEKINE T.; KODAMA R.

  レーザー学会研究会報告 = Reports on the Topical meeting of the Laser Society of Japan, 31 Aug. 2012

  
• Neutron powder diffraction of small-volume samples at high pressure using compact opposed-anvil cells and focused beam

  T. Okuchi; S. Sasaki; Y. Ohno; J. Abe; H. Arima; T. Osakabe; T. Hattori; A. Sano-Furukawa; K. Komatsu; H. Kagi; W. Utsumi; S. Harjo; T. Ito; K. Aizawa

  23RD INTERNATIONAL CONFERENCE ON HIGH PRESSURE SCIENCE AND TECHNOLOGY (AIRAPT-23), 2012, Peer-reviewed, Lead author, Corresponding author

  
• Single Crystal Growth of Gas Hydrates under High Pressure

  Sasaki Shigeo; Okuchi Takuo; Kume Tetsuji; Shimizu Hiroyasu

  Journal of the Japanese Association of Crystal Growth, 30 Apr. 2011, Invited

  
• クラスレートハイドレートへの水素の貯蔵

  奥地 拓生

  配管技術, Nov. 2010, Invited, Lead author

  
• Off-Hugoniot Measurements of Liquid Hydrogen by Laser Shock Compression

  SANO T; OZAKI N; SAKAIYA T; SHIGEMORI K; IKOMA M; KIMURA T; MIYANISHI K; ENDO T; SHIROSHITA A; TAKAHASHI H; JITSUI T; SODA T; HORI Y; HIRONAKA Y; IWAMOTO A; KADONO T; NAKAI M; OKUCHI T; SHIMIZU K; KONDO T; KODAMA R; MIMA K

  高圧討論会講演集, 11 Oct. 2010

  
• クラスレートハイドレートへの水素貯蔵過程の高圧その場観測

  奥地 拓生

  ENEOS technical review, Jan. 2010, Invited, Lead author

  
• Static compression experiments for advanced coupling techniques of laser-driven dynamic compression and precompression target

  T. Kimura; N. Ozaki; T. Okuchi; T. Mashimo; K. Miyanishi; T. Endo; T. Jitsui; A. Hirose; M. Ikoma; T. Kakeshita; Y. Sakawa; T. Sano; T. Sano; K. Shimizu; T. Terai; R. Kodama

  INTERNATIONAL CONFERENCE ON HIGH PRESSURE SCIENCE AND TECHNOLOGY, JOINT AIRAPT-22 AND HPCJ-50, 2010, Peer-reviewed

  
• Large-volume static compression using nano-polycrystalline diamond for opposed anvils in compact cells

  T. Okuchi; S. Sasaki; T. Osakabe; Y. Ohno; S. Odake; H. Kagi

  INTERNATIONAL CONFERENCE ON HIGH PRESSURE SCIENCE AND TECHNOLOGY, JOINT AIRAPT-22 AND HPCJ-50, 2010, Peer-reviewed, Lead author, Corresponding author

  
• Hugoniot and temperature measurements of liquid hydrogen by laser-shock compression

  T. Sano; N. Ozaki; T. Sakaiya; K. Shigemori; M. Ikoma; T. Kimura; K. Miyanishi; T. Endo; A. Shiroshita; H. Takahashi; T. Jitsui; Y. Hori; Y. Hironaka; A. Iwamoto; T. Kadono; M. Nakai; T. Okuchi; K. Otani; K. Shimizu; T. Kondo; R. Kodama; K. Mima

  SIXTH INTERNATIONAL CONFERENCE ON INERTIAL FUSION SCIENCES AND APPLICATIONS, PARTS 1-4, 2010, Peer-reviewed

  
• Introduction of the high pressure neutron diffraction projects in J-PARC

  Takaya Nagai; Hiroshi Arima; Takuo Okuchi; Hiroyuki Kagi; Takehiko Yagi

  Review of High Pressure Science and Technology/Koatsuryoku No Kagaku To Gijutsu, 2009, Peer-reviewed

  
• Physics of ices and a new frontier of planetary science

  OKUCHI Takuo

  Planetary people, 25 Mar. 2007

  
• 氷の物理化学に関する国際会議(PCI 2006)参加報告 : International Symposium on Physics and Chemistry of Ice : PCI

  本堂 武夫; 内田 努; 竹井 巌; 奥地 拓生; 佐々木 重雄; 崛 彰; 前野 紀一; 荒川 政彦

  雪氷, 15 Jan. 2007

  
• High-pressure sciences of hydrogen compounds and expectations for the pulsed neutron source

  Takuo Okuchi; Hiroyuki Kagi

  Review of High Pressure Science and Technology/Koatsuryoku No Kagaku To Gijutsu, 2007, Peer-reviewed, Lead author, Corresponding author

  
• Experimental molecular dynamics of ice-related materials at high pressure

  奥地 拓生

  Low temperature science, 2007, Invited, Lead author, Corresponding author

  
• 核 水のゆくえは誕生時に運命づけられた--地球の全システムが水を絶妙に制御している (特集 シリーズ・地球--「水」が大地を動かす--地震・プレート・プルーム・中心核--メカニズムを解く)

  奥地 拓生

  サイアス, Jan. 2000, Invited, Lead author

  
• 核に溶けた水素 : マントル上昇流の新しい駆動力

  奥地 拓生

  科学, Jul. 1997, Invited, Lead author, Corresponding author

  
• 地球化学的月起源論

  奥地拓生

  天文月報, 1994, Invited, Lead author, Corresponding author

  

Presentations

• 天然鉱物における極限圧縮場とマルチスケール構造の生成・発展・凍結

  奥地拓生

  プラズマ・核融合学会年会, 27 Nov. 2023, Invited

  
• 静的圧縮によるアルミニウムの微細組織の形成過程

  奥地 拓生; 田中 友登; 富岡 尚敬; 佐野 智一; 松田 朋己; 荒河 一渡; 瀬戸 雄介

  日本鉱物科学会2023年年会, 16 Sep. 2023

  
• Structure transformation of silicate minerals during hypervelocity collisions of planetary bodies

  Takuo Okuchi; Naotaka Tomioka

  11th International Workshop on Warm Dense Matter 2023, 27 Jun. 2023

  
• Ultrafast solid-state phase transformation of silicate minerals during shock compression

  Takuo Okuchi; Naotaka Tomioka

  23rd Biennial Conference of the APS Topical Group on Shock Compression of Condensed Matter, 22 Jun. 2023, Invited

  
• Structural Evolution of Dynamically-compressed Germanium Dioxide

  荒賀大翔; 荒賀大翔; 梅田悠平; 梅田悠平; 小林敬道; 遊佐斉; 瀬戸雄介; 奥地拓生; 奥地拓生

  日本鉱物科学会年会講演要旨(Web), 2023

  
• Shock deformation microstructures in rutile

  梅田悠平; 永井優馬; 富岡尚敬; 関根利守; 宮川仁; 小林敬道; 遊佐斉; 奥地拓生

  日本鉱物科学会年会講演要旨(Web), 2023

  
• 超高速時間分解 X 線プローブによる鉱物の衝撃圧縮状態研究の 現在と今後

  奥地拓生

  第63回高圧討論会, 13 Dec. 2022

  
• Laser-driven shock experiments of planetary silicate minerals for finding evolution history of the solar system

  Takuo Okuchi; Naotaka Tomioka

  2022 IUCr High-Pressure Workshop "Advanced High-Pressure Crystallography", 07 Dec. 2022, Invited

  
• 地上の実験で宇宙惑星物質を探査 －ハイパワーレーザー衝撃圧縮による太陽系史読解－

  奥地拓生

  日本航空宇宙学会関西支部 第642回航空宇宙懇談会, 15 Jul. 2022, Invited

  
• Location, capacity and transport of hydrogen in the crystal structure of deep-earth hydrous minerals

  Takuo Okuchi

  Goldschmidt Conference 2022 Workshop: Advanced Neutron Scattering for Earth and Planetary Science, 09 Jun. 2022, Invited

  
• Structure transformation of silicate minerals during hypervelocity collisions occurred in the solar system.

  Takuo Okuchi

  Japan-US joint seminar series on high energy density science (The Institute of Laser Engineering at Osaka University and the High Energy Density Science Center at LLNL), 11 May 2022, Invited

  
• Laser-driven shock experiments of planetary materials for finding evolution history of early solar system

  Takuo Okuchi

  International Conference on High Energy Density Sciences 2022, 20 Apr. 2022

  
• Water molecule dynamics in amorphous silicate nanoparticles analyzed by quasielastic scattering

  奥地 拓生; 富岡 尚敬; 瀬戸 雄介; 梅田 悠平; 山田 武; 玉造 博夢; 柴田 薫

  2021年度量子ビームサイエンスフェスタ, 08 Mar. 2022

  
• Surface diffusion analysis of hydroxide minerals experiencing dehydration by quasi-elastic neutron scattering

  奥地拓生; 梅田悠平; 富岡尚敬; 瀬戸雄介; 山田武

  日本鉱物科学会年会講演要旨(Web), 2022

  
• Hydration process of amorphous silicate nanoparticles analyzed by quasielastic neutron scattering

  Hydration process of amorphous silicate nanoparticles analyzed by quasielastic neutron scattering

  JSNS2021, 02 Dec. 2021

  
• Location, capacity and transport of hydrogen in the crystal structures of deep-earth hydrous minerals analyzed by pulsed neutron scattering

  Takuo Okuchi; Purevjav Narangoo; Naotaka Tomioka; Takeshi Yamada

  10th Asian Conference on High Pressure Research, 24 Nov. 2021, Invited

  
• Shock-induced Fast Structure Transformation and Fast Melting of Forsterite Observed by Power Laser and XFEL

  Takuo OKUCHI; Naotaka TOMIOKA; Norimasa OZAKI; Yusuke SETO; Ryosuke KODAMA; Kohei MIYANISHI; Toshimori SEKINE; Yuhei UMEDA; Toshinori YABUUCHI

  The 62nd High Pressure Conference of Japan, 19 Oct. 2021, Invited

  
• 衝撃圧縮による惑星物質の高密度原子配列の生成過程

  奥地拓生

  SPring-8シンポジウム2021, 18 Sep. 2021, Invited

  
• Hydration process of amorphous silicate nanoparticles analyzed by quasielastic neutron scattering at high temperature

  Takuo Okuchi; Naotaka Tomioka; Yusuke Seto; Yuhei Umeda; Takeshi Yamada, Hiromu; Tamatsukuri; Kaoru Shibata

  2021 Annual Meering of Japan Associaton of Mienralogical Sciences, 18 Sep. 2021

  
• Crystal structure and dynamics of hydrogen in hydrous minerals

  奥地拓生

  2020年度量子ビームサイエンスフェスタ, 10 Mar. 2021

  
• Planetology using high-power laser and X-ray free electron laser

  Takuo Okuchi

  4th Asia Pacific Conference on Plasma Physics, 31 Oct. 2020, Invited

  
• Laboratory exploration of planetary materials using high power lasers

  Takuo Okuchi

  Opto 2020 Symposium on Photon and Beam Science, 29 Sep. 2020, Invited

  
• 水素を含む地球惑星内部物質の構造と拡散の研究（学会賞受賞講演）

  奥地拓生

  日本鉱物科学会, 18 Sep. 2020, Invited

  
• 高強度レーザー・XFEL・中性子の複合利用による惑星物質探査科学

  奥地拓生

  レーザー学会学術講演会第40回年次大会, 21 Jan. 2020, Invited

  
• Laser-driven shock compression experiments of synthetic wadsleyite and ringwoodite crystals

  OKUCHI Takuo; PUREVJAV Narangoo; OZAKI Norimasa; SANO Takayoshi; UMEDA Yuhei; KODAMA Ryosuke

  日本地球惑星科学連合大会予稿集(Web), 2020

  
• Fast recrystallization process of dense mineral crystals by asteroid impacts in the early solar system, as simulated by laser-driven shock and analyzed in-situ by SACLA XFEL

  Takuo Okuchi

  OptoX-nano 2019, 04 Dec. 2019, Invited

  
• Laser-shock experiments at SACLA for simulating impact events in the early solar system: current status and perspective

  Takuo Okuchi

  SACLA Users' Meeting 2019, 29 Aug. 2019, Invited

  
• パルス中性子を使った地球深部水素の単結晶構造解析とダイナミクス解析

  奥地拓生

  ATI水和ナノ構造研究会, 29 Jan. 2019, Invited

  
• Linking structures and textures of naturally-shocked planetary materials with laser-shocked crystals analyzed in-situ by XFEL diffraction

  Takuo Okuchi

  Laser Shock Workshop 2019, at High Pressure Science & Technology Advanced Research, 08 Jan. 2019, Invited

  
• Shock compression measurements of synthetic wadsleyite and ringwoodite single crystals

  PUREVJAV Narangoo; OKUCHI Takuo; OZAKI Norimasa; SANO Takayoshi; UMEDA Yuhei; MORIOKA Shintaro; KAMIMURA Nobuki; NAGAYASU Hiroshi

  高圧討論会講演要旨集, 2019

  
• Laser-shock experiments of dense polymorphs of Mg₂SiO₄: technical developments using synthetic single crystals

  PUREVJAV Narangoo; OKUCHI Takuo; OZAKI Norimasa; SANO Takayoshi; UMEDA Yuhei; MORIOKA Shintaro; KAMIMURA Nobuki

  日本地球惑星科学連合大会予稿集(Web), 2019

  
• カンラン石及び同高圧相のレーザー衝撃圧縮時間分解その場X線回折

  奥地拓生; PUREVJAV Narangoo; 尾崎典雅; 尾崎典雅; 瀬戸雄介; 松岡健之; 梅田悠平; 片桐健登; 森岡信太朗; 富岡尚敬; 関根利守; 関根利守; 飯高敏晃; 薮内俊毅; 宮西宏併; 宮西宏併; 矢橋牧名; 兒玉了祐; 兒玉了祐

  高圧討論会講演要旨集, 2019

  
• Quantitative analysis of hydrogen in deep-earth minerals by TOF Laue single crystal neutron diffraction

  Takuo Okuchi

  Geophysical Laboratory Seminar Series, Carnegie Institution of Washington, Washington DC, USA, 15 Oct. 2018, Invited

  
• Ultrafast time-resolved analysis of shock-driven structure transformation of forsterite using power laser and XFEL at SACLA

  Takuo Okuchi

  HPSTAR Seminar Talk, High Pressure Science & Technology Advanced Research, 21 May 2018, Invited

  
• パワーレーザーとXFELによる惑星物質の衝撃圧縮状態研究

  奥地拓生

  レーザー学会学術講演会第38会年次大会, 24 Jan. 2018, Invited

  
• 物質の超高速変形と破壊:XFELを用いた観測のアプローチから

  尾崎典雅; 尾崎典雅; 松岡健之; ALBERTAZZI Bruno; 宮西宏併; 片桐健登; 梅田悠平; HARTLEY Nicholas; HARTLEY Nicholas; PIKUZ Tatiana; 山内和人; 兒玉了佑; 兒玉了佑; 松岡岳洋; 奥地拓生; 瀬戸雄介; 丹下慶範; 佐藤友子; 関根利守; 坂田修身; 犬伏雄一; 富樫格; 籔内俊穀; 矢橋牧名; 矢橋牧名; VINCI Tommaso; KOENIG Michel; KOENIG Michel

  高圧討論会講演要旨集, 2018

  
• 衝撃圧縮その場での時間分解XFEL回折による衝撃変成カンラン石の構造転移機構

  奥地拓生; PUREVJAV Narangoo; 尾崎典雅; 瀬戸雄介; 丹下慶範; 関根利守; 富岡尚敬; 松岡健之; 高橋謙次郎; 梅田悠平; 宮西宏併; 犬伏雄一; 籔内俊毅; 兒玉了祐; 兒玉了祐

  日本地球惑星科学連合大会予稿集(Web), 2018

  
• パワーレーザーとXFELによる惑星物質科学研究

  奥地拓生

  第七回光科学異分野横断萌芽研究会, 09 Aug. 2017, Invited

  
• 中性子準弾性散乱による含水鉱物内部の多様な水素輸送現象

  奥地拓生

  2016年度量子ビームサイエンスフェスタ, 14 Mar. 2017, Invited

  
• 衝撃圧縮された多結晶コランダムの時分割XFELその場観察

  丹下慶範; 尾崎典雅; 瀬戸雄介; 佐藤友子; 奥地拓生; 松岡健之; 高橋謙次郎; 宮西宏併; ALBERTAZZI Bruno; HARTLEY Nicholas; 梅田悠平; 西川豊人; 松山智至; 山内和人; 関根利守; 田中和夫; 兒玉了祐; 兒玉了祐; 籔内俊毅; 矢橋牧名

  高圧討論会講演要旨集, 2017

  
• パワーレーザーとXFELによるレーザー衝撃圧縮ダイナミクスのその場観測実験装置の開発

  高橋謙次郎; 尾崎典雅; 尾崎典雅; 松岡健之; 末田敬一; 宮西宏併; 梅田悠平; HARTLEY Nicholas; ALBERTAZZI Bruno; 羽原英明; FAENOV Anatoly; PIKUZ Tatiana; HARMAND Marion; 硲崚; 細見実; 犬伏雄一; 上村伸樹; 片桐健登; 松山智至; MORARD Guillaume; 森岡信太郎; 向井幹二; 西川豊人; 奥地拓生; 坂田修身; 佐藤友子; 関根利守; 瀬戸雄介; 丹下慶範; 富樫格; 冨澤宏光; 藪内俊毅; 山内和人; KOENIG Michel; KOENIG Michel; 田中和夫; 田中和夫; 田中和夫; 矢橋牧名; 矢橋牧名; 兒玉了祐; 兒玉了祐; 兒玉了祐; 兒玉了祐

  高圧討論会講演要旨集, 2017

  
• Insulating, semiconducting and metallic states of water at dynamic compression by laser-driven shock wave

  Takuo Okuchi

  Water X: Exotic properties of water under extreme conditions, 15 Jul. 2016, Invited

  
• X線自由電子レーザーを用いた衝撃波伝搬過程の時分割その場観察

  丹下慶範; 瀬戸雄介; 尾崎典雅; 奥地拓生; 宮西宏併; HARTLEY Nicholas; 梅田悠平; 西川豊人; OCHANTE Ricardo; 松岡健之; 高橋謙次郎; 松山智至; 山内和人; 佐藤友子; 関根利守; 田中和夫; 兒玉了祐; 籔内俊毅; 犬伏雄一; 矢橋牧名; 矢橋牧名

  高圧討論会講演要旨集, 2016

  
• パワーレーザーとXFELによるレーザー衝撃圧縮ダイナミクスのその場観測実験装置の開発

  高橋謙次郎; 尾崎典雅; 尾崎典雅; 松岡健之; 末田敬一; 宮西宏併; HARTLEY Nicholas; ALBERTAZZI Bruno; 羽原英明; FAENOV Anatoly; PIKUZ Tatiana; 藤本陽平; HARMAND Marion; 硲崚; 池上温史; 犬伏雄一; 松村祐介; 松山智至; MORARD Guillaume; 西川豊人; 野間澄人; OCHANTE Ricardo; 奥地拓生; 大月崇史; 坂田修身; 佐藤友子; 関根利守; 瀬戸雄介; 丹下慶範; 富樫格; 冨澤宏光; 梅田悠平; 薮内俊毅; 山内和人; KOENIG Michel; KOENIG Michel; 田中和夫; 田中和夫; 矢橋牧名; 矢橋牧名; 兒玉了祐; 兒玉了祐; 兒玉了祐; 兒玉了祐

  高圧討論会講演要旨集, 2016

  
• フォルステライト単結晶のレーザー衝撃圧縮XFEL時間分解観察

  奥地拓生; 尾崎典雅; 瀬戸雄介; 丹下慶範; 関根利守; PUREVJAV Narangoo; 梅田悠平; 松岡健之; 高橋謙次郎; 宮西宏併; 犬伏雄一; 矢橋牧名; 山内和人; 田中和夫; 兒玉了祐; 兒玉了祐

  高圧討論会講演要旨集, 2016

  
• XFELで見る動的超高圧下の物質変形・相転移

  尾崎典雅; 尾崎典雅; ALBERTAZZI Bruno; ALBERTAZZI Bruno; 松岡健之; HARTLEY Nicholas; HARTLEY Nicholas; FAENOV Anatoly; MORARD Guillaume; 羽原英明; HARMAND Marion; 犬伏雄一; 犬伏雄一; 石川哲也; 片山哲夫; 片山哲夫; KOENIG Michel; KOENIG Michel; KRYGIER Andy; 松山智至; MCBRIDE Emma; 宮西宏併; 奥地拓生; PIKUZ Tatiana; 佐藤友子; 坂田修身; 瀬戸雄介; 関根利守; 田中和夫; 田中和夫; 高橋謙次郎; 丹下慶範; 冨樫格; 冨樫格; 梅田悠平; VINCI Tommaso; 矢橋牧名; 薮内俊毅; 山内和人; 兒玉了祐; 兒玉了祐; 兒玉了祐; 兒玉了祐

  高圧討論会講演要旨集, 2016

  
• 一軸圧力負荷下における単結晶ゲルマニウムの構造相転移

  宮西宏併; 尾崎典雅; 尾崎典雅; 松岡健之; 瀬戸雄介; 丹下慶範; 犬伏雄一; 石川哲也; KOENIG Michel; 松山智至; 奥地拓生; 佐藤友子; 坂田修身; 関根利守; 田中和夫; 富樫格; VINCI Tommaso; 池上温史; 梅田悠平; 大月崇史; OCHANTE M. Ricardo A.; 高橋謙次郎; 西川豊人; 野間澄人; HARTLEY Nicholas; 羽原英明; PIKUZ Tatiana; FAENOV Anatoly; 藤本陽平; 松村祐介; 矢橋牧名; 籔内俊毅; 山内和人; 兒玉了祐; 兒玉了祐

  高圧討論会講演要旨集, 2016

  
• Microstructural investigation of laser-processed surface of diamonds

  Ohfuji Hiroaki; Okuchi Takuo; Odake Shoko; Kagi Hiroyuki; Nagatomo Shohei; Sugata Mitsuru; Sumiya Hitoshi

  Abstracts for Annual Meeting of Japan Association of Mineralogical Sciences, 2008, Japan Association of Mineralogical Sciences

  

Books and Other Publications

• 鉱物・宝石の科学事典

  奧地 拓生, Contributor, 惑星内部の氷

  朝倉書店, Aug. 2019, Not refereed

  
• 低温環境の科学事典

  奧地 拓生, Contributor, 氷惑星・氷衛星

  朝倉書店, 2016, Not refereed

  
• High pressure NMR of hydrogen-filled ices by diamond anvil cell

  T. Okuchi; M. Takigawa; H. K. Mao; R. J. Hemley; T. Yagi

  ROYAL SOC CHEMISTRY, 2007, Refereed

  
• Advances in High-Pressure Techniques for Geophysical Applications

  T. Okuchi; H. Mao; R.J. Hemley, Contributor, A new gasket material for higher resolution NMR in diamond anvil cells (pp. 503-509)

  Elsevier, 2005

  Find Kyoto University's collection of books :

  
• 地震発生と水

  奧地 拓生, Contributor, 地球中心核と水

  東京大学出版会, 2003, Not refereed

  
• Water in the early Earth

  Y. Abe; E. Ohtani; T. Okuchi; K. Righter; M. Drake

  University of Arizona Press/Lunar and Planetary Institute, 2000, Refereed

  
• Hydrogen in molten iron at high pressure: The first measurement

  T Okuchi; E Takahashi

  AMER GEOPHYSICAL UNION, 1998, Refereed

  

Awards

• 18 Sep. 2020

  Japan Association of Mineralogical Sciences, 日本鉱物科学会賞
• Jul. 2006

  Gordon Research Conference, Gordon Research Conference best poster award

  United States, International society

  Takuo Okuchi

External funds: Kakenhi

• オリビンは地球型惑星マントルの水貯蔵に貢献するか?

  Grant-in-Aid for Scientific Research (B)

  Basic Section 17040:Solid earth sciences-related

  Japan Agency for Marine-Earth Science and Technology

  富岡 尚敬

  From 01 Apr. 2024, To 31 Mar. 2028, Granted

  オリビン;水;高圧合成;透過電子顕微鏡;２次イオン質量分析計

  https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-24K00742/
• Structure analysis of shock-compressed iron alloys by in-situ femtosecond X-ray absorption spectroscopy

  Grant-in-Aid for Challenging Research (Exploratory)

  Medium-sized Section 17:Earth and planetary science and related fields

  Kyoto University

  奥地 拓生

  From 30 Jun. 2023, To 31 Mar. 2026, Granted

  X線吸収分光;衝撃圧縮;鉄合金;地球中心核

  https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-23K17702/
• Ressearch on hydrogen in the deep earth by neutron crystallography and mass spectroscopy

  Grant-in-Aid for Scientific Research (A)

  Medium-sized Section 17:Earth and planetary science and related fields

  Kyoto University

  奥地 拓生

  From 05 Apr. 2021, To 31 Mar. 2025, Granted

  中性子結晶学;局所質量分析;透過電子顕微鏡;含水鉱物;水素

  https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-21H04519/
• Laser-driven shock compression experiments for time-evolution analysis of impact-induced melting process

  Grant-in-Aid for Challenging Research (Exploratory)

  Medium-sized Section 17:Earth and planetary science and related fields

  Kyoto University

  奥地 拓生

  From 30 Jul. 2020, To 31 Mar. 2024, Granted

  衝突融解現象;高強度レーザー;X線自由電子レーザー;カンラン石;Ｘ線自由電子レーザー

  https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-20K20947/
• オリビンは一瞬で高密度化する：惑星物質の衝撃変成解明の新展開

  Grant-in-Aid for Scientific Research (B)

  Basic Section 17010:Space and planetary sciences-related

  Japan Agency for Marine-Earth Science and Technology

  富岡 尚敬

  From 01 Apr. 2020, To 31 Mar. 2024, Granted

  高圧相転移;高圧実験;隕石;電子顕微鏡;第一原理計算;オリビン;衝撃変成;相転移機構;高温高圧実験;透過電子顕微鏡;X線回折;結晶構造解析

  https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-20H01965/
• Quasielastic neutron scattering of amorphous hydrous silicates

  Grant-in-Aid for Scientific Research on Innovative Areas (Research in a proposed research area)

  Okayama University

  奥地 拓生

  From 01 Apr. 2018, To 31 Mar. 2020, Project Closed

  中性子準弾性散乱;非晶質ケイ酸塩;水素ダイナミクス;水の起源;水

  https://kaken.nii.ac.jp/grant/KAKENHI-PUBLICLY-18H04460/
• Atomic scale diffusion dynamics of hydrogen in deep-Earth minerals by pulsed neutron scattering

  Grant-in-Aid for JSPS Fellows

  Okayama University

  奥地 拓生

  From 10 Nov. 2017, To 31 Mar. 2020, Project Closed

  neutron scattering;hydrogen dynamics;crystal structure;DHMS Phase E;hydrous bridgmanite;DHMS phase E;単結晶中性子回折;中性子準弾性散乱;hydrous ringwoodite

  https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-17F17331/
• Integrated analysis of crystallography and dynamics of hydrogen in deep mantle minerals by high-intensity neutron scattering and high-resolution transmission electron microscopy

  Grant-in-Aid for Scientific Research (A)

  Kyoto University;Okayama University

  Takuo OKUCHI

  From 01 Apr. 2017, To 31 Mar. 2021, Project Closed

  中性子散乱;透過電子顕微鏡;マントル含水鉱物;水素配置解析;水素拡散ダイナミクス

  https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-17H01172/
• 巨大ガス惑星とスーパーアースの内部進化過程の解明に向けた超高圧水素流体の反応実験

  Grant-in-Aid for Scientific Research (A)

  Okayama University

  Andrew Jephcoat

  From 01 Apr. 2016, To 31 Mar. 2019, Declined

  Raman spectroscopy;Diamond-anvil cell;Laser heating;Multi-anvil experiment;高温高圧実験;ダイアモンドアンビルセル;ガス惑星;地球・惑星内部構造

  https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-16H02222/
• hydrogen diffusion dynamics of deep-Earth hydrous minerals by quasielastic neutron scattering

  Grant-in-Aid for Challenging Exploratory Research

  Okayama University

  Takuo Okuchi

  From 01 Apr. 2015, To 31 Mar. 2018, Project Closed

  中性子準弾性散乱;水素拡散ダイナミクス;含水鉱物;中性子散乱;水素拡散

  https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-15K13593/
• Quantitavie analysis of hydrogen sites and occupancies in deep-mantle hydrous minerals by time of flight single crystal neutron diffraction

  Grant-in-Aid for Scientific Research (B)

  Okayama University

  Takuo Okuchi

  From 01 Apr. 2014, To 31 Mar. 2017, Project Closed

  パルス中性子;単結晶回折;マントル含水鉱物;水素;中性子;単結晶;中性子回折;ワズレアイト;リングウッダイト

  https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-26287135/
• Study of hydrogen in the Earth's core based on the high-pressure neutron experiments

  Grant-in-Aid for Scientific Research (A)

  The University of Tokyo;Ehime University

  Takehiko Yagi

  From 01 Apr. 2013, To 31 Mar. 2016, Project Closed

  地球核;軽元素;水素;中性子回折実験;超高圧;鉄水素化物;高圧;中性子;鉄;コア;水素化;高温高圧;地球の核;地球コア

  https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-25246037/
• Hydrogen in earth and planetary materials observed by high-pressure diamond anvil cell NMR

  Grant-in-Aid for Scientific Research (B)

  Okayama University

  Takuo OKUCHI

  From 01 Apr. 2011, To 31 Mar. 2015, Project Closed

  ＮＭＲ;水素;高圧力;NMR

  https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-23340161/
• Time-resolved Raman spectroscopy of metastable phase transformations in silicates under high-pressures and -temperatures

  Grant-in-Aid for Scientific Research (C)

  Okayama University

  Naotaka TOMIOKA

  From 01 Apr. 2011, To 31 Mar. 2014, Project Closed

  ラマン分光;ダイヤモンドアンビルセル;圧力誘起非晶質化;水素拡散;含水ケイ酸塩高圧相;パルス中性子回折;結晶構造解析;リートベルト法;中性子線回折;水素同位体;ダイヤモンドアンビル;高温高圧実験;ブルーサイト

  https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-23540558/
• The study of structural stability of gas hydrates by using light scattering and NMR spectroscopies

  Grant-in-Aid for Scientific Research (B)

  Gifu University

  Shigeo SASAKI

  From 01 Apr. 2011, To 31 Mar. 2014, Project Closed

  物性実験;分子性固体;ガスハイドレート;ラマン散乱;ブリュアン散乱;NMR;高圧

  https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-23340100/
• NMRの圧力限界更新

  Grant-in-Aid for Challenging Exploratory Research

  Okayama University

  奥地 拓生

  From 01 Apr. 2008, To 31 Mar. 2010, Project Closed

  NMR;超高圧;水素;含水鉱物;核磁気共鳴分光;超高圧力;ブルーサイト

  https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-20654050/
• Material sciences at ultra-high pressure using the strongest spallation neutron source

  Grant-in-Aid for Creative Scientific Research

  The University of Tokyo

  Hiroyuki KAGI

  From 01 Apr. 2007, To 31 Mar. 2012, Project Closed

  水素;水;高圧;中性子;地球;惑星;ダイヤモンド;地球惑星

  https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-19GS0205/
• 高圧氷のNMR

  Grant-in-Aid for Young Scientists (A)

  Nagoya University

  奥地 拓生

  From 01 Apr. 2005, To 31 Mar. 2007, Project Closed

  ガスハイドレート;地球・惑星内部構造;高圧力;NMR

  https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-17684027/
• スラブの氷

  Grant-in-Aid for Young Scientists (B)

  Nagoya University

  奥地 拓生

  From 01 Apr. 2003, To 31 Mar. 2004, Project Closed

  https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-15740314/
• 水-マグマ系を探るための微分干渉顕微鏡の製作

  Grant-in-Aid for Young Scientists (B)

  Nagoya University

  奥地 拓生

  From 01 Apr. 2001, To 31 Mar. 2003, Project Closed

  高温高圧実験;微分干渉顕微鏡;H20;融解曲線;H2O

  https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-13740308/
• 月巨大クレーターの実験分光鉱物学

  Grant-in-Aid for Encouragement of Young Scientists (A)

  Nagoya University

  奥地 拓生

  From 01 Apr. 1999, To 31 Mar. 2001, Project Closed

  核磁気共鳴分光;RFプローブ;還元風化作用;月の科学;マントル鉱物

  https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-11740292/

External funds: others

• パワーレーザーによる氷惑星関連物質と内部状態に関する「地球惑星内部物質探査」研究開発

  XFELとパワーレーザーによる新極限物質材料の探索

  文部科学省, X線自由電子レーザー施設重点戦略研究課題

  From 01 Apr. 2012, To 31 Mar. 2017

  奥地拓生
• クラスレートハイドレートへの水素貯蔵過程の高圧その場観測

  新日本石油株式会社, 公益信託ENEOS水素基金

  From 01 Apr. 2007, To 31 Mar. 2008

  奥地拓生
• 木星の海を地球に創る

  科学技術振興事業団, さきがけ研究21 状態と変革

  From 01 Oct. 1998, To 30 Sep. 2001

Education

Teaching subject(s)

• From 01 Apr. 2024, To 31 Mar. 2025

  Analysis of Materials by Quantum Beams

  B629, Fall, Graduate School of Engineering, 2
• From 01 Apr. 2023, To 31 Mar. 2024

  Analysis of Materials by Quantum Beams

  B629, Fall, Graduate School of Engineering, 2
• From 01 Apr. 2022, To 31 Mar. 2023

  Analysis of Materials by Quantum Beams

  B629, Fall, Graduate School of Engineering, 2
• From Apr. 2021, To Mar. 2022

  Analysis of Materials by Quantum Beams

  Fall, 工学研究科

Participation in PhD Defenses (other than KU)

• Hydration mechanism in Earth's mantle transition zone investigated by neutron diffraction

  Purevjav Narangoo, Okayama University, Japan, Chief Examiner

  Mar. 2017
• Proton migration and electrical conductivity of hydrous minerals under high pressure

  Guo Xinzhuan, Okayama University, Japan, Sub-chief Examiner

  Mar. 2012
• レーザー衝撃圧縮によるダイヤモンドの 弾塑性変形ダイナミクスに関する研究

  Katagiri Kento, Osaka University, Japan, Sub-chief Examiner

  Mar. 2022

Student achievements: Awards

• 日本中性子科学会2014年度年会ポスター賞

  Purevjav Narangoo, The Japanese Society for Neutron Science, 15 Dec. 2014
• 日本鉱物科学会2013年年会ポスター研究発表優秀賞

  Purevjav Narangoo, Japan Association of Mineralogical Sciences, 12 Sep. 2013

Student achievements: Presentations

• 均質な含水SiO 2 ガラスの高圧合成 及び合成条件による構造変化

  髙橋 柊斗・小木曽 哲・清水 健 二・牛久保 孝行・富岡 尚敬・小 野寺 陽平・奥地 拓生

  第65回高圧討論会, 15 Nov. 2024, From 13 Nov. 2024, To 15 Nov. 2024, Not invited, Japanese, Oral presentation
• Time-resolved structure analysis of shock-compressed GeO2

  Araga Hiroto

  SACLA Users' Meeting 2024, 12 Mar. 2023, From 11 Mar. 2023, To 12 Mar. 2023, Not invited, English, Poster presentation
• Structure evolution of dynamically-compressed germanium dioxide

  Araga, H., Umeda, Y., Kobayashi, T., Yusa, H., Seto, Y., Okuchi, T.

  The 2023 Annual Meeting of Japan Association of Mineralogical Sciences, 16 Sep. 2023, From 14 Sep. 2023, To 16 Sep. 2023, Not invited, Japanese, Poster presentation
• 衝撃圧縮による二酸化チタンの構造相転移

  永井優馬, 梅田悠平, 小林敬道, 遊佐斉, 富岡尚敬, 奥地拓生

  第63回高圧討論会, 13 Dec. 2022, From 13 Dec. 2022, To 15 Dec. 2022, Not invited, Japanese, Poster presentation
• 静的圧縮によるアルミニウムの微細結晶粒組織の形成

  田中友登・佐野智一・富岡 尚敬・松田 朋己・荒河一渡・奥地拓生

  The 62nd High Pressure Conference of Japan, 18 Oct. 2021, From 18 Oct. 2021, To 20 Oct. 2021, Not invited, Japanese, Poster presentation

Part-time lecturer

• From 01 Apr. 2022, To 31 Mar. 2023

  物質生成技術に関する教育・研究

  通年, 大阪大学, 大学院工学研究科
• From 01 Apr. 2022, To 30 Sep. 2022

  電気工学特別講義

  前期, 大阪大学, 大学院工学研究科

Administration

Faculty management (title, position)

• From 01 Apr. 2023

  新試験研究炉開発・利用センター センター員
• 20210401
• From 01 Apr. 2021

  熊取事業場衛生委員会委員
• From 01 Aug. 2020

  複合原子力科学系会議構成員
• From 01 Apr. 2022

  研究計画委員会委員
• From 01 Aug. 2020

  協議員会協議員
• From 01 Apr. 2021

  運営委員会委員

Academic, Social Contribution

Committee Memberships

• From Sep. 2024, To Aug. 2026

  幹事及び評議員, 日本高圧力学会
• From 2022, To 2024

  プログラム委員, The Association of Asia Pacific Physical Societies
• From 2016, To 2020

  ハイパワーレーザーによる高エネルギー密度科学 調査専門委員, レーザー学会
• From Jan. 2007, To Dec. 2018

  編集委員, 日本惑星科学会
• From Apr. 2018, To Nov. 2018

  プログラム委員長, 日本高圧力学会 第59回高圧討論会
• From Sep. 2016, To Aug. 2018

  編集委員長, 日本高圧力学会
• From Sep. 2014, To Aug. 2016

  副編集委員長, 日本高圧力学会
• From Sep. 2009, To Aug. 2012

  編集委員, 日本高圧力学会

Social Contribution

• 水素と水と地球の４６億年の物質学

  Lecturer

  京都大学, 第132回 京都大学丸の内セミナー, From 02 Jun. 2023, To 02 Jun. 2023

  
• 水素と水と地球の歴史の話

  Lecturer

  京都大学, 京都大学 ELCAS2022 講義型A, From 20 Aug. 2022, To 24 Aug. 2022