Updated on 2023/09/12

写真a

 
SAKURAI, Ikuya
 
Organization
Synchrotron Radiation Research Center Division of Synchrotron Radiation Designated associate professor
Title
Designated associate professor

Degree 1

  1. 博士（学術） （ 2001.9   埼玉大学 ） 

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Research Interests 6

  1. Synchrotron

  2. LIGA

  3. X線CT

  4. X-ray imaging optics

  5. X-ray microscope

  6. X-ray telescope

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Research Areas 2

  1. Nanotechnology/Materials / Applied condensed matter physics  / LIGA、放射光

  2. Others / Others

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Current Research Project and SDGs 2

  1. シンクロトロン光による微細加工技術の開発

  2. X線CT測定法の開発

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Research History 3

  1. 名古屋大学 シンクロトロン光研究センター   特任准教授

    2020.4

  2. Aichi Science and Technology Foundation

    2019.4 - 2020.3

  3. Nagoya University   Synchrotron Radiation Research Center   Designated associate professor

    2009.4 - 2019.3

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Education 2

  1. Saitama University   Graduate School, Division of Science and Engineering

    - 2001.9

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    Country： Japan

  2. Saitama University

    - 2001.9

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Professional Memberships 6

  1. 日本物理学会

  2. 日本天文学会

  3. 日本放射光学会

  4. 日本物理学会

  5. 日本放射光学会

  6. 日本天文学会

▼display all

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Committee Memberships 1

  1. 日本放射光学会   プログラム委員  

    2020.4 - 2021.3   

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    Committee type：Academic society

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Awards 2

  1. RHG Exceptional Achievement for Science Team

    2016   National Aeronauttics and Space Administration  

    The Astro-H Soft X-ray Telescope Team

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    Award type：International academic award (Japan or overseas)  Country：Japan

  2. Group Achievement Award

    2016   National Aeronauttics and Space Administration  

    The Astro-H Soft X-ray Telescope Team

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    Award type：International academic award (Japan or overseas)  Country：Japan

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Papers 58

  1. 2D X-Ray Irradiation Beamline BL8S2 at Aichi Synchrotron Radiation Center Invited Reviewed

    Ikuya Sakurai, Kenji Hanada

    Journal of The Japan Institute of Electronics Packaging   Vol. 26 ( 5 ) page： 477 - 482   2023.8

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    Authorship：Lead author,　Corresponding author  

    DOI： https://doi.org/10.5104/jiep.26.477

  2. A history of mild shocks experienced by the regolith particles on hydrated asteroid Ryugu Reviewed

    Naotaka Tomioka, Akira Yamaguchi, Motoo Ito, Masayuki Uesugi, Naoya Imae, Naoki Shirai, Takuji Ohigashi, Makoto Kimura, Ming-Chang Liu, Richard C. Greenwood, Kentaro Uesugi, Aiko Nakato, Kasumi Yogata, Hayato Yuzawa, Yu Kodama, Kaori Hirahara, Ikuya Sakurai, Ikuo Okada, Yuzuru Karouji, Keishi Okazaki, Kosuke Kurosawa, Takaaki Noguchi, Akira Miyake, Masaaki Miyahara, Yusuke Seto, Toru Matsumoto, Yohei Igami, Satoru Nakazawa, Tatsuaki Okada, Takanao Saiki, Satoshi Tanaka, Fuyuto Terui, Makoto Yoshikawa, Akiko Miyazaki, Masahiro Nishimura, Toru Yada, Masanao Abe, Tomohiro Usui, Sei-ichiro Watanabe, Yuichi Tsuda

    Nature Astronomy   Vol. 7 ( 6 ) page： 669 - 677   2023.6

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    Publishing type：Research paper (scientific journal)   Publisher：Springer Science and Business Media LLC  

    Abstract

    Micrometeorites, a possible major source of Earth’s water, are thought to form from explosive dispersal of hydrated chondritic materials during impact events on their parental asteroids. However, this provenance and formation mechanism have yet to be directly confirmed using asteroid returned samples. Here, we report evidence of mild shock metamorphism in the surface particles of asteroid Ryugu based on electron microscopy. All particles are dominated by phyllosilicates but lack dehydration textures, which are indicative of shock-heating temperatures below ~500 °C. Microfault-like textures associated with extensively shock-deformed framboidal magnetites and a high-pressure polymorph of Fe–Cr–sulfide have been identified. These findings indicate that the average peak pressure was ~2 GPa. The vast majority of ejecta formed during impact on Ryugu-like asteroids would be hydrated materials, larger than a millimetre, originating far from the impact point. These characteristics are inconsistent with current micrometeorite production models, and consequently, a new formation mechanism is required.

    DOI： 10.1038/s41550-023-01947-5

    Web of Science

    Other Link： https://www.nature.com/articles/s41550-023-01947-5

  3. Insight into multi-step geological evolution of C-type asteroids from Ryugu particles

    Akira Yamaguchi, Naotaka Tomioka, Motoo Ito, Naoki Shirai, Makoto Kimura, Richard C. Greenwood, Ming Chang Liu, Kaitlyn A. McCain, Nozomi Matsuda, Masayuki Uesugi, Naoya Imae, Takuji Ohigashi, Kentaro Uesugi, Aiko Nakato, Kasumi Yogata, Hayato Yuzawa, Yu Kodama, Kaori Hirahara, Ikuya Sakurai, Ikuo Okada, Yuzuru Karouji, Satoru Nakazawa, Tatsuaki Okada, Takanao Saiki, Satoshi Tanaka, Fuyuto Terui, Makoto Yoshikawa, Akiko Miyazaki, Masahiro Nishimura, Toru Yada, Masanao Abe, Tomohiro Usui, Sei ichiro Watanabe, Yuichi Tsuda

    Nature Astronomy   Vol. 7 ( 4 ) page： 398 - 405   2023.4

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    Publishing type：Research paper (scientific journal)  

    C-type asteroids are the source of the carbonaceous chondrite meteorites and represent remnants of primitive planetesimals that formed at the outer margins of the early Solar System and may have delivered volatiles to the inner Solar System, in particular the early Earth. However, the nature of carbonaceous chondrites is not well understood owing to terrestrial alteration. Here, we present the petrology and mineral chemistry of surface materials collected by the Japan Aerospace Exploration Agency (JAXA) Hayabusa2 spacecraft from the C-type asteroid Ryugu. The Ryugu particles we studied are similar to CI (Ivuna-type) chondrites but with some important differences, such as the presence of Na–Mg phosphates and Na-rich phases and the lack of ferrihydrite and gypsum. Ryugu particles experienced several steps of aqueous alteration, metasomatism and brecciation under variable conditions. These materials represent mixed lithologies and formed at different locations within their parent asteroid. The evidence presented here demonstrates that the C-type asteroid Ryugu experienced a complex geologic evolution shortly after its formation.

    DOI： 10.1038/s41550-023-01925-x

    Web of Science

    Scopus

  4. Early fluid activity on Ryugu inferred by isotopic analyses of carbonates and magnetite

    Kaitlyn A. McCain, Nozomi Matsuda, Ming-Chang Liu, Kevin D. McKeegan, Akira Yamaguchi, Makoto Kimura, Naotaka Tomioka, Motoo Ito, Naoya Imae, Masayuki Uesugi, Naoki Shirai, Takuji Ohigashi, Richard C. Greenwood, Kentaro Uesugi, Aiko Nakato, Kasumi Yogata, Hayato Yuzawa, Yu Kodama, Kaori Hirahara, Ikuya Sakurai, Ikuo Okada, Yuzuru Karouji, Satoru Nakazawa, Tatsuaki Okada, Takanao Saiki, Satoshi Tanaka, Fuyuto Terui, Makoto Yoshikawa, Akiko Miyazaki, Masahiro Nishimura, Toru Yada, Masanao Abe, Tomohiro Usui, Sei-ichiro Watanabe, Yuichi Tsuda

    Nature Astronomy     2023.1

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    Publishing type：Research paper (scientific journal)   Publisher：Springer Science and Business Media LLC  

    DOI： 10.1038/s41550-022-01863-0

    Web of Science

    Other Link： https://www.nature.com/articles/s41550-022-01863-0

  5. The effect of pH on X-ray-radiolysis-induced synthesis of nickel nanoparticles on lithium niobate substrates

    Shunya Saegusa, Ikuya Sakurai, Ikuo Okada, Keisuke Yamada, Mutsuhiro Shima, Yuichi Utsumi, Akinobu Yamaguchi

    Materials Science and Engineering: B   Vol. 287   page： 116093 - 116093   2023.1

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    Language：English   Publishing type：Research paper (scientific journal)   Publisher：Elsevier BV  

    Photochemical reactions in aqueous media induced by X-ray irradiation have been shown to enable the synthesis of functional structures ranging from nanometer to millimeter scales. Herein, we demonstrate the synthesis and immobilization of nanoscale/microscale Ni particles onto lithium niobate (LiNbO3) substrates directly by X-ray irradiation of nickel sulfate (NiSO4) solutions with pHs from 1 to 9 using a synchrotron radiation facility. We found that the size and composition of the synthesized particles strongly depends on the pH of the solution; as pH increases, oxidation is accelerated and particle size increases. The synthesized particles exhibit magnetic hysteresis and are found to have ferromagnetic properties. Our investigation reveals that pH regulation is essential for controlling the synthesis of particles and providing characteristic functionalities to the materials. The X-ray radiolysis technique enables a state-of-the-art nanoscale/microscale three-dimensional manufacturing process that can create functional structures comprising composite constituents such as metallic and plastic materials.

    DOI： 10.1016/j.mseb.2022.116093

    Web of Science

    Scopus

  6. Oxygen isotope evidence from Ryugu samples for early water delivery to Earth by CI chondrites Reviewed

    Richard C. Greenwood, Ian A. Franchi, Ross Findlay, James A. Malley, Motoo Ito, Akira Yamaguchi, Makoto Kimura, Naotaka Tomioka, Masayuki Uesugi, Naoya Imae, Naoki Shirai, Takuji Ohigashi, Ming-Chang Liu, Kaitlyn A. McCain, Nozomi Matsuda, Kevin D. McKeegan, Kentaro Uesugi, Aiko Nakato, Kasumi Yogata, Hayato Yuzawa, Yu Kodama, Akira Tsuchiyama, Masahiro Yasutake, Kaori Hirahara, Akihisa Tekeuchi, Shun Sekimoto, Ikuya Sakurai, Ikuo Okada, Yuzuru Karouji, Satoru Nakazawa, Tatsuaki Okada, Takanao Saiki, Satoshi Tanaka, Fuyuto Terui, Makoto Yoshikawa, Akiko Miyazaki, Masahiro Nishimura, Toru Yada, Masanao Abe, Tomohiro Usui, Sei-ichiro Watanabe, Yuichi Tsuda

    Nature Astronomy   Vol. 7 ( 1 ) page： 29 - 38   2022.12

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    Publishing type：Research paper (scientific journal)   Publisher：Springer Science and Business Media LLC  

    Abstract

    The delivery of water to the inner Solar System, including Earth, is still a debated topic. A preferential role for hydrated asteroids in this process is supported by isotopic measurements. Carbonaceous chondrite (CC) meteorites represent our main source of information about these volatile-rich asteroids. However, the destruction of weaker materials during atmospheric entry creates a bias in our CC data. The return of surface materials from the C-type asteroid 162173 Ryugu by the Hayabusa2 spacecraft provides a unique opportunity to study high-porosity, low-density, primitive materials, unrepresented in the meteorite record. We measured the bulk oxygen isotope composition from four Ryugu particles and show that they most closely resemble the rare CI (CC Ivuna-type) chondrites, but with some differences that we attribute to the terrestrial contamination of the CI meteorites. We suggest that CI-related material is widespread among carbonaceous asteroids and a more important source of Earth’s water and other volatiles than its limited presence in our meteoritic collection indicates.

    DOI： 10.1038/s41550-022-01824-7

    Scopus

    Other Link： https://www.nature.com/articles/s41550-022-01824-7

  7. A pristine record of outer Solar System materials from asteroid Ryugu’s returned sample Reviewed

    Motoo Ito, Naotaka Tomioka, Masayuki Uesugi, Akira Yamaguchi, Naoki Shirai, Takuji Ohigashi, Ming-Chang Liu, Richard C. Greenwood, Makoto Kimura, Naoya Imae, Kentaro Uesugi, Aiko Nakato, Kasumi Yogata, Hayato Yuzawa, Yu Kodama, Akira Tsuchiyama, Masahiro Yasutake, Ross Findlay, Ian A. Franchi, James A. Malley, Kaitlyn A. McCain, Nozomi Matsuda, Kevin D. McKeegan, Kaori Hirahara, Akihisa Takeuchi, Shun Sekimoto, Ikuya Sakurai, Ikuo Okada, Yuzuru Karouji, Masahiko Arakawa, Atsushi Fujii, Masaki Fujimoto, Masahiko Hayakawa, Naoyuki Hirata, Naru Hirata, Rie Honda, Chikatoshi Honda, Satoshi Hosoda, Yu-ichi Iijima, Hitoshi Ikeda, Masateru Ishiguro, Yoshiaki Ishihara, Takahiro Iwata, Kosuke Kawahara, Shota Kikuchi, Kohei Kitazato, Koji Matsumoto, Moe Matsuoka, Tatsuhiro Michikami, Yuya Mimasu, Akira Miura, Osamu Mori, Tomokatsu Morota, Satoru Nakazawa, Noriyuki Namiki, Hirotomo Noda, Rina Noguchi, Naoko Ogawa, Kazunori Ogawa, Tatsuaki Okada, Chisato Okamoto, Go Ono, Masanobu Ozaki, Takanao Saiki, Naoya Sakatani, Hirotaka Sawada, Hiroki Senshu, Yuri Shimaki, Kei Shirai, Seiji Sugita, Yuto Takei, Hiroshi Takeuchi, Satoshi Tanaka, Eri Tatsumi, Fuyuto Terui, Ryudo Tsukizaki, Koji Wada, Manabu Yamada, Tetsuya Yamada, Yukio Yamamoto, Hajime Yano, Yasuhiro Yokota, Keisuke Yoshihara, Makoto Yoshikawa, Kent Yoshikawa, Ryota Fukai, Shizuho Furuya, Kentaro Hatakeda, Tasuku Hayashi, Yuya Hitomi, Kazuya Kumagai, Akiko Miyazaki, Masahiro Nishimura, Hiromichi Soejima, Ayako Iwamae, Daiki Yamamoto, Miwa Yoshitake, Toru Yada, Masanao Abe, Tomohiro Usui, Sei-ichiro Watanabe, Yuichi Tsuda

    Nature Astronomy   Vol. 6 ( 10 ) page： 1163 - +   2022.10

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    Language：English   Publishing type：Research paper (scientific journal)   Publisher：Springer Science and Business Media LLC  

    Abstract

    Volatile and organic-rich C-type asteroids may have been one of the main sources of Earth’s water. Our best insight into their chemistry is currently provided by carbonaceous chondritic meteorites, but the meteorite record is biased: only the strongest types survive atmospheric entry and are then modified by interaction with the terrestrial environment. Here we present the results of a detailed bulk and microanalytical study of pristine Ryugu particles, brought to Earth by the Hayabusa2 spacecraft. Ryugu particles display a close compositional match with the chemically unfractionated, but aqueously altered, CI (Ivuna-type) chondrites, which are widely used as a proxy for the bulk Solar System composition. The sample shows an intricate spatial relationship between aliphatic-rich organics and phyllosilicates and indicates maximum temperatures of ~30 °C during aqueous alteration. We find that heavy hydrogen and nitrogen abundances are consistent with an outer Solar System origin. Ryugu particles are the most uncontaminated and unfractionated extraterrestrial materials studied so far, and provide the best available match to the bulk Solar System composition.

    DOI： 10.1038/s41550-022-01745-5

    Web of Science

    Other Link： https://www.nature.com/articles/s41550-022-01745-5

  8. Incorporation of 16O-rich anhydrous silicates in the protolith of highly hydrated asteroid Ryugu Reviewed

    Ming-Chang Liu, Kaitlyn A. McCain, Nozomi Matsuda, Akira Yamaguchi, Makoto Kimura, Naotaka Tomioka, Motoo Ito, Masayuki Uesugi, Naoya Imae, Naoki Shirai, Takuji Ohigashi, Richard C. Greenwood, Kentaro Uesugi, Aiko Nakato, Kasumi Yogata, Hayato Yuzawa, Yu Kodama, Kaori Hirahara, Ikuya Sakurai, Ikuo Okada, Yuzuru Karouji, Satoru Nakazawa, Tatsuaki Okada, Takanao Saiki, Satoshi Tanaka, Fuyuto Terui, Makoto Yoshikawa, Akiko Miyazaki, Masahiro Nishimura, Toru Yada, Masanao Abe, Tomohiro Usui, Sei-ichiro Watanabe, Yuichi Tsuda

    Nature Astronomy   Vol. 6 ( 10 ) page： 1172 - +   2022.10

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    Language：English   Publishing type：Research paper (scientific journal)   Publisher：Springer Science and Business Media LLC  

    The abundant phyllosilicate and carbonate minerals characterizing most of the returned particles from asteroid Ryugu suggest a history of extensive aqueous alteration on its parent body, similar to the rare mineralogically altered, but chemically primitive, CI (Ivuna-type) chondrite meteorites. Particle C0009 differs mineralogically from other Ryugu particles examined so far by containing anhydrous silicates at a level of similar to 0.5 vol%, and thus can help shed light on the unaltered original materials that constituted Ryugu's protolith. In situ oxygen isotope measurements of the most Mg-rich olivine and pyroxene in C0009 reveal two populations of Delta O-17: -25 parts per thousand to -15 parts per thousand and -8 parts per thousand to -3 parts per thousand. The former and the latter populations correlate well with silicate morphologies similar to those seen in amoeboid olivine aggregates and chondrule phenocrysts, respectively, both of which are abundant in less aqueously altered carbonaceous chondrites. This result also highlights the presence of olivine with Delta O-17 close to the solar value in either a CI chondrite or an asteroid with CI-chondrite characteristics, and provides strong evidence that amoeboid olivine aggregates and Mg-rich chondrules accreted into Ryugu's protolith. Our data also raise the possibility that the protoliths of CI and other carbonaceous chondrites incorporated similar anhydrous silicates.

    DOI： 10.1038/s41550-022-01762-4

    Web of Science

    Other Link： https://www.nature.com/articles/s41550-022-01762-4

  9. ONE YEAR ON! A SUMMARY OF THE ANALYTICAL WORK ON RYUGU PARTICLES CONDUCTED BY PHASE2 KOCHI CURATION

    Ito, M., Tomioka, N., Uesugi, M., Yamaguchi, A., Imae, N., Shirai, N., Ohigashi, T., Kimura, M., Liu, M-C, Greenwood, R. C., Uesugi, K., Nakato, A., Yogata, K., Yuzawa, H., Kodama, Y., Tsuchiyama, A., Yasutake, M., Findlay, R., Franchi, I. A., Malley, J. A., McCain, K. A., Matsuda, N., McKeegan, K. D., Hirahara, K., Takeuchi, A., Sekimoto, S., Sakurai, I., Okada, I., Karouji, Y., Yada, T., Abe, M., Usui, T., Watanabe, S., Tsuda, Y.

    Meteoritics & Planetary Science   Vol. 57   2022

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    Language：Japanese   Publishing type：Research paper (scientific journal)  

    Web of Science

  10. EARLY FLUID ACTIVITY ON THE RYUGU PARENT ASTEROID INFERRED FROM (MN)-M-53-(CR)-C-53 AGES OF RYUGU CARBONATE

    McCain, K. A., Matsuda, N., Liu, M. -C., McKeegan, K. D., Yamaguchi, A., Kimura, M., Tomioka, N., Ito, M., Imae, N., Uesugi, M., Shirai, N., Ohigashi, T., Greenwood, R. C., Uesugi, K., Nakato, A., Yogata, K., Yu-Zawa, H., Kodama, Y., Hirahara, K., Sakurai, I., Okada, I., Karouji, Y., Nakazawa, S., Okada, T., Saiki, T., Tanaka, S., Terui, F., Yoshikawa, M., Miyazaki, A., Nishimura, M., Yada, T., Abe, M., Usui, T., Watanabe, S., Tsuda, Y.

    Meteoritics & Planetary Science     2022

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    Publishing type：Research paper (scientific journal)  

    Web of Science

  11. THE O-ISOTOPE COMPOSITION OF RYUGU PARTICLES: THE MOST PRISTINE CIs?

    Greenwood, R. C., Franchi, I. A., Findlay, R., Malley, J. A., Ito, M., Yamaguchi, A., Kimura, M., Tomioka, N., Uesugi, M., Imae, N., Shirai, N., Ohigashi, T., Liu, M-C., Uesugi, K., Nakato, A., Yogata, K., Yuzawa, H., Kodama, Y., Tsuchiyama, A., Yasutake, M., Hirahara, K., Takeuchi, A., Sakurai, I., Okada, I., Karouji, Y., Yada, T., Abe, M., Usui, T., Watanabe, S., Tsuda, Y., McCain, K. A., Matsuda, N., McKeegan, K. D., Nakzawa, S., Okada, T., Saiki, T., Tanaka, S., Terui, F., Yoshikawa, M., Miyazaki, A., Nishimura, M., Sekimoto, S.

    Meteoritics & Planetary Science     2022

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    Publishing type：Research paper (scientific journal)  

    Web of Science

  12. X-ray radiolysis-induced-photochemical reaction at interface between liquid and substrate

    S. Saegusa, N. Akamatsu, I. Sakurai, I. Okada, Y. Utsumi, A. Yamaguchi

    2021 International Conference on Electronics Packaging, ICEP 2021     page： 63 - 64   2021

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    Language：Japanese   Publishing type：Research paper (international conference proceedings)  

    There are many methods and techniques which can fabricate three dimensional structures consisting of metallic, ceramic, or plastic materials. To date, however, there are few systems which can create three dimensional structures made of composite materials. X-ray-radiolysis-induced photochemical reaction of liquid solution enables the direct synthesis of nano/micro-scale particles and their aggregates. In this study, the topography and composition of synthesized particles or aggregates are strongly dependent on substrate types dipped in aqueous solution of Cu(COOCH3)2 in X-ray radiolysis.

    DOI： 10.23919/ICEP51988.2021.9451970

    Web of Science

    Scopus

  13. The universal sample holders of microanalytical instruments of FIB, TEM, NanoSIMS, and STXM-NEXAFS for the coordinated analysis of extraterrestrial materials Reviewed

    Motoo Ito, Naotaka Tomioka, Kentaro Uesugi, Masayuki Uesugi, Yu Kodama, Ikuya Sakurai, Ikuo Okada, Takuji Ohigashi, Hayato Yuzawa, Akira Yamaguchi, Naoya Imae, Yuzuru Karouji, Naoki Shirai, Toru Yada, Masanao Abe

    EARTH PLANETS AND SPACE   Vol. 72 ( 1 )   2020.9

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    Language：English   Publishing type：Research paper (scientific journal)   Publisher：SPRINGER  

    We developed universal sample holders [the Kochi grid, Kochi clamp, and Okazaki cell) and a transfer vessel (facility-to-facility transfer container (FFTC)] to analyze sensitive and fragile samples, such as extremely small extraterrestrial materials. The holders and container prevent degradation, contamination due to the terrestrial atmosphere (water vapor and oxygen gas) and small particles, as well as mechanical sample damage. The FFTC can isolate the samples from the effects of the atmosphere for more than a week. The Kochi grid and clamp were made for a coordinated micro/nano-analysis that utilizes a focused-ion beam apparatus, transmission electron microscope, and nanoscale secondary ion mass spectrometry. The Okazaki cell was developed as an additional attachment for a scanning transmission X-ray microscope that uses near-edge X-ray absorption fine structure (NEXAFS). These new apparatuses help to minimize possible alterations from the exposure of the samples to air. The coordinated analysis involving these holders was successfully carried out without any sample damage or loss, thereby enabling us to obtain sufficient analytical datasets of textures, crystallography, elemental/isotopic abundances, and molecular functional groups for mu m-sized minerals and organics in both the Antarctic micrometeorite and a carbonaceous chondrite. We will apply the coordinated analysis to acquire the complex characteristics in samples obtained by the future spacecraft sample return mission.

    DOI： 10.1186/s40623-020-01267-2

    Web of Science

  14. Solid/Liquid-interface-dependent synthesis and immobilization of copper-based particles nucleated by the X-ray-radiolysis-induced photochemical reaction Reviewed

    A.Yamaguchi, I.Sakurai, I.Okada, H.Izumi, M.Ishihara, T.Fukuoka, S.Suzuki, and Y.Utsumi

    Journal of Synchrotron Radiation   Vol. 27 ( 4 ) page： 1008 - 1014   2020.7

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    Authorship：Corresponding author   Language：English   Publishing type：Research paper (scientific journal)  

    DOI： https://doi.org/10.1107/S1600577520005184

  15. Solid/liquid-interface-dependent synthesis and immobilization of copper-based particles nucleated by X-ray-radiolysis-induced photochemical reaction Reviewed

    Akinobu Yamaguchi, Ikuya Sakurai, Ikuo Okada, Hirokazu Izumi, Mari Ishihara, Takao Fukuoka, Satoru Suzuki, Yuichi Utsumi

    JOURNAL OF SYNCHROTRON RADIATION   Vol. 27 ( 4 ) page： 1008 - 1014   2020.7

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    Language：English   Publishing type：Research paper (scientific journal)   Publisher：INT UNION CRYSTALLOGRAPHY  

    X-ray-radiolysis-induced photochemical reaction of a liquid solution enables the direct synthesis and immobilization of nano/micro-scale particles and their aggregates onto a desired area. As is well known, the synthesis, growth and aggregation are dependent on the pH, additives and X-ray irradiation conditions. In this study, it was found that the topography and composition of synthesized particles are also dependent on the types of substrate dipped in an aqueous solution of Cu(COOCH3)(2) in the X-ray-radiolysis-induced photochemical reaction. These results are attributed to the fact that a secondary electron induced by the X-ray irradiation, surface or interface on which the particles are nucleated and grown influences the particle shape and composition. This study will shed light on understanding a novel photochemical reaction route induced under X-ray irradiation. The development of this process using the X-ray-radiolysis-induced photochemical reaction in aqueous liquids enables us to achieve the rapid and easy operation of the synthesis, growth and immobilization of special nano/micro-scale complex materials or multifunctional composites.

    DOI： 10.1107/S1600577520005184

    Web of Science

  16. 放射光光化学反応による粒子合成に関する固液界面依存性

    山口明啓, 三枝峻也，櫻井郁也, 岡田育夫, 内海裕一

    マイクロエレクトロニクスシンポジウム論文集     page： 103 - 106   2020

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    Authorship：Corresponding author   Language：Japanese   Publishing type：Research paper (conference, symposium, etc.)  

    DOI： https://doi.org/10.11486/mes.30.0_103

  17. Study on solid/solid- and solid/liquid-interface-dependent material properties for an artificial multiferroic system and additive manufacturing process Invited Reviewed

    2020 International Conference on Solid State Devices and Materials (SSDM) Proceeding     2020

  18. Controllability of cupric particle synthesis by linear alcohol chain number as additive and pH control in cupric acetate solution using X-ray radiolysis Reviewed

    Akinobu Yamaguchi, Ikuo Okada, Ikuya Sakurai, Hirokazu Izumi, Mari Ishihara, Takao Fukuoka, Satoru Suzuki, Kelvin Elphick, Edward Jackson, Atsufumi Hirohata, Yuichi Utsumi

    JOURNAL OF SYNCHROTRON RADIATION   Vol. 26   page： 1986 - 1995   2019.11

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    Language：English   Publishing type：Research paper (scientific journal)   Publisher：INT UNION CRYSTALLOGRAPHY  

    Synthesis and immobilization of caltrop cupric particles onto a Si substrate using X-ray radiolysis directly from a liquid solution of Cu(COOCH3)(2) is demonstrated. Caltrop cupric oxide particles are formed in the X-ray radiolysis of aqueous solutions of Cu(COOCH3)(2), which also contain methanol, ethanol, 2-propanol or 1-propanol as OH scavenger. The blade lengths of the caltrop particles are dependent on the alcohol chain length. In particular, it was found that an alkyl alcohol whose chain length is longer than four is unable to synthesize any particles in aqueous solutions of Cu(COOCH3)(2) in X-ray radiolysis. These results are attributed to the alkyl alcohol chain length influencing the rate of reaction of radicals and determines the solvable ratio of its alcohol into water. In addition, it was found that the synthesized particle geometric structure and composition can also be controlled by the pH of the aqueous solution in the X-ray radiolysis. This study may open a door to understanding and investigating a novel photochemical reaction route induced under X-ray irradiation. The development of the X-ray radiolysis process enables us to achieve the rapid and easy process of synthesis and immobilization of higher-order nano/microstructure consisting of various materials.

    DOI： 10.1107/S1600577519010543

    Web of Science

  19. X-ray radiolysis-based three dimensional additive manufacturing process

    S. Saegusa, I. Sakurai, I. Okada, T. Fukuoka, S. Suzuki, Y. Utsumi, A. Yamaguchi

    2019 International Conference on Electronics Packaging, ICEP 2019     page： 32 - 35   2019.4

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    Publishing type：Research paper (international conference proceedings)  

    To achieve the three dimensional additive manufacturing process, we investigated X-ray radiolysis-induced chemical reaction of Cu(CH3COO)2 solution. Here, we demonstrated synthesis and immobilization of cupric oxide particles onto a silicon or aluminium substrate using X-ray radiolysis directly from a liquid solution. The X-ray radiolysis of Cu(CH3COO)2 solutions was observed to produce curious shaped microstructures consisting of cupric oxide (CuO, Cu2O, Cu4O3) particles and Cu particles. The sizes of the particles depended on the additive type of alcohol. The results indicate that there are several routes and reaction processes for these particles and aggregation to be synthesized. In addition, we demonstrated the synthesis of these particles using X-ray radiolysis cell combined with a solution flow system. The developed technique of X-ray radiolysis enables us to achieve the rapid and easy synthesis of higher-order structures consisting of cupric oxide and copper particles onto the desired area.

    DOI： 10.23919/ICEP.2019.8733581

    Scopus

  20. PREPARATION FOR THE ANALYSIS OF HAYABUSA2 RETURNED SAMPLES

    Uesugi, M., Uesugi, K., Ito, M., Tomioka, N., Ohigashi, T., Yamaguchi, A., Imae, N., Karouji, Y., Shirai, N., Yada, T., Abe, M., Hirahara, K., Kodama, Y., Sakurai, I.

    Meteoritics & Planetary Science   Vol. 54   2019

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    Language：Japanese   Publishing type：Research paper (scientific journal)  

    Web of Science

  21. X-ray radiolysis-based three dimensional additive manufacturing process

    Saegusa S., Sakurai I., Okada I., Fukuoka T., Suzuki S., Utsumi Y., Yamaguchi A.

    2019 INTERNATIONAL CONFERENCE ON ELECTRONICS PACKAGING (ICEP 2019)     page： 32 - 35   2019

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  22. Study on three dimensional additive manufacturing process using X-ray radiolysis Reviewed

    Akinobu Yamaguchi, Ikuya Sakurai, Ikuo Okada, Atsushi Yamaguchi, Mari Ishihara, Takao Fukuoka, Satoru Suzuki, Yuichi Ljtsumi

    2019 14TH ANNUAL IEEE INTERNATIONAL CONFERENCE ON NANO/MICRO ENGINEERED AND MOLECULAR SYSTEMS (IEEE-NEMS 2019)     page： 139 - 142   2019

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    Language：English   Publishing type：Research paper (international conference proceedings)   Publisher：IEEE  

    Y We present the synthesis of nano/micro-scale metallic and oxidized particles onto various substrates using the X-ray radiolysis with a manufactured flow system. As a typical example, the cupric particles are deposited onto the substrates. Scanning electron microscopy with energy dispersive X-ray analysis, X-ray diffraction, micro-Raman spectroscopy have been demonstrated to investigate and understand the physical and chemical mechanisms to synthesize the particles. These analyses enable us to provide the understanding that the radical ions nucleated by the X-ray irradiation in the solution play a significant role in synthesizing and ripening of particles and clusters. The process using X-ray radiolysis sheds light on the novel three dimensional additive manufacturing process for three dimensional structure formation and additive process.

    DOI： 10.1109/NEMS.2019.8915620

    Web of Science

  23. Synthesis and immobilization of cupric oxide particles using X-ray raiolysis Reviewed

    Akinobu Yamaguchi, Ikuo Okada, Takao Fukuoka, Ikuya Sakurai, Yuichi Utsumi

    2017 IEEE 12th International Conference on Nano/Micro Engineered and Molecular Systems, NEMS 2017     page： 448 - 451   2017.8

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    Language：English   Publishing type：Research paper (international conference proceedings)   Publisher：Institute of Electrical and Electronics Engineers Inc.  

    We demonstrated synthesis and immobilization of cupric oxide particles using X-ray radiolysis directly from a liquid solution. The X-ray radiolysis of CuSO4 and Cu(CH3COO)2 solutions was observed to produce higher-order microstructures consisting of cupric oxide (CuO, Cu2O, Cu4O3) particles and Cu particles. The sizes of the particles depended on the ratio of ethanol in the stock solution and the surface of the substrate. The results indicate that there are several routes and reaction processes for these particles and aggregation to be synthesized. The technique of X-ray radiolysis enables us to achieve the rapid and easy synthesis of higher-order structures consisting of cupric oxide and copper particles.

    DOI： 10.1109/NEMS.2017.8017062

    Web of Science

    Scopus

  24. Caltrop particles synthesized by photochemical reaction induced by X-ray radiolysis Reviewed

    Akinobu Yamaguchi, Takao Fukuoka, Iukuo Okada, Mari Ishihara, Ikuya Sakurai, Yuichi Utsumi

    JOURNAL OF SYNCHROTRON RADIATION   Vol. 24   page： 653 - 660   2017.5

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    Language：English   Publishing type：Research paper (scientific journal)   Publisher：INT UNION CRYSTALLOGRAPHY  

    X-ray radiolysis of a Cu(CH3COO)(2) solution was observed to produce caltrop-shaped particles of cupric oxide (CuO, Cu2O), which were characterized using high-resolution scanning electron microscopy and micro-Raman spectrometry. X-ray irradiation from a synchrotron source drove the room-temperature synthesis of submicrometer- and micrometer-scale cupric oxide caltrop particles from an aqueous Cu(CH3COO)(2) solution spiked with ethanol. The size of the caltrop particles depended on the ratio of ethanol in the stock solution and the surface of the substrate. The results indicated that there were several synthetic routes to obtain caltrop particles, each associated with electron donation. The technique of X-ray irradiation enables the rapid synthesis of caltrop cupric oxide particles compared with conventional synthetic methods.

    DOI： 10.1107/S1600577517002314

    Web of Science

    Other Link： http://orcid.org/0000-0002-1673-1292

  25. Caltrop particles synthesized by photochemical reaction induced by X-ray radiolysis Reviewed

    A.Yamaguchi, T.Fukuoka, I.Okada, M.Ishihara, I.Sakurai and Y.Utsumi

    JOURNAL OF SYNCHROTRON RADIATION   ( 24 ) page： 653-660   2017.4

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    Language：English   Publishing type：Research paper (scientific journal)  

  26. Magic Chain Length of Alcohol for Synthesizing Caltrop Cupric Oxide Particles by X-ray Photochemical Reaction Reviewed

    A.Yamaguchi, I.Okada, T.Fukuoka, I.Sakurai, M.Ishihara, Y.Utsumi

    The Journal of Physical Chemistry     page： DOI   2017

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    Language：English   Publishing type：Research paper (scientific journal)  

    DOI： DOI

  27. One-Step Synthesis of Copper and Cupric Oxide Particles from the Liquid Phase by X-ray Radiolysis Using Synchrotron Radiation Reviewed

    Akinobu Yamaguchi, Ikuo Okada, Takao Fukuoka, Mari Ishihara, Ikuya Sakurai, Yuichi Utumi

    Journal of Nanomaterials   Vol. 2016   page： 8584304, 16pages   2016.12

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    Language：English   Publishing type：Research paper (scientific journal)  

  28. Synthesis of nanoparticles through X-ray radiolysis using synchrotron radiation

    A.Yamaguchi, I.Okada, T.Fukuoka, M.Ishihara, I.Sakurai, Y.Utsumi

    SPIE 9929, Nanostructured Thin Films IX   Vol. 9929   page： 19-27   2016.9

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    Language：English  

  29. Surface-enhanced Raman scattering active gold nanostructure fabricated by photochemical reaction of synchrotron radiation Reviewed

    A.Yamaguchi, T.Matsumoto, I.Okada, I.Sakurai, Y.Utsumi

    Materials Chemistry and Physics   Vol. 160   page： 205-211   2015.6

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    Language：English   Publishing type：Research paper (scientific journal)  

  30. Development of the Four-stage X-ray telescope (FXT) for the DIOS mission

    Y.Tawara, I.Sakurai, S.Sugita, S.Takizawa, Y.Babasaki, R.Nakamichi, A.Bandai, Y.Maeda, T.Hayashi

    SPIE 9144, Space Telescopes and Instrumentation 2014: Ultraviolet to Gamma Ray   Vol. 9144   page： 61-66   2014.9

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    Language：English  

  31. Raytrace Simulation for the Four-stage X-ray Telescope onboard the DIOS mission

    Y.Babazaki, Y.Tawara, I.Sakurai, S.Takizawa, R.Nakamichi, S.Sugita

    Proc. of Suzaku-Maxi Conference 2014     page： 396 – 397   2014.9

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    Language：English  

  32. Development of the Four-stage x-ray telescope for the DIOS mission

    I.Sakurai, S.Sugita, Y.Tawara, S.Hara, Y.Babazaki, R.Nakamichi

    SPIE, Optics for EUV, X-Ray, and Gamma-Ray Astronomy VI   Vol. 8861   page： 88610P-1 - 88610P-6   2013.9

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    Authorship：Lead author   Language：English  

  33. Development of four-stage x-ray telescope for DIOS mission

    Tawara, Yuzuru; Sugita, Satoshi; Hara, Shinji; Sakurai, Ikuya; Tachibana, Kenji; Ramsey, Brian D.

    Space Telescopes and Instrumentation 2012   Vol. 8443 ( 844343 ) page： 7-12   2012.9

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    Language：English  

  34. Gas Slit Camera (GSC) onboard MAXI on ISS Reviewed

    Mihara, Tatehiro; Nakajima, Motoki; Sugizaki, Mutsumi; Serino, Motoko; Matsuoka, Masaru; Kohama, Mitsuhiro; Kawasaki, Kazuyoshi; Tomida, Hiroshi; Ueno, Shiro; Kawai, Nobuyuki; Kataoka, Jun; Morii, Mikio; Yoshida, Atsumasa; Yamaoka, Kazutaka; Nakahira, Satoshi; Negoro, Hitoshi; Isobe, Naoki; Yamauchi, Makoto; Sakurai, Ikuya

    Publications of the Astronomical Society of Japan   Vol. 63 ( SP3 ) page： 623-634   2011.11

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    Language：English   Publishing type：Research paper (scientific journal)  

  35. DIOS: the diffuse intergalactic oxygen surveyor: status and prospects

    T. Ohashi; Y. Ishisaki; Y. Ezoe; S. Sasaki; H. Kawahara; K. Mitsuda; N. Y. Yamasaki; Y. Takei; M. Ishida; Y. Tawara; I. Sakurai; A. Furuzawa; Y. Suto; K. Yoshikawa; N. Kawai; R. Fujimoto; T. G. Tsuru; K. Matsushita; T. Kitayama

    SPIE   Vol. 7732   page： 77321S-77321S-9   2010.7

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    Language：English   Publishing type：Research paper (scientific journal)  

  36. The development of DIOS FXT (Four-stage X-ray Telescope)

    Tawara, Yuzuru; Kurebayashi, Yuki; Sugita, Satoshi; Sakurai, Ikuya; Masuda, Tadashi; Torii, Tatsuharu; Matsushita, Kohji

    SPIE   Vol. 7732   page： 77324A-77324A   2010.7

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    Language：English   Publishing type：Research paper (scientific journal)  

  37. Performance of the demonstration model of DIOS FXT

    Y.Tawara, I.Sakurai, T.Masuda, T.Torii, K.Matsushita, B.D.Ramsey

    SPIE   Vol. 7437   page： 74371O-74371O-6   2009.8

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    Language：English   Publishing type：Research paper (scientific journal)  

  38. Edge and Core Impurity Transport Study with Spectroscopic Instruments in LHD

    S.Morita, M.Goto, M.Kobayashi, S.Muto, M.B.Chowdhuri, D.Chunfeng, Z.Hangyu, C.Zhengying, K.Fujii, A.Furuzawa, M.Hasuo, A.Iwamae, J.Yinxian, M.Koubiti, I.Sakurai, Y.Tawara, W.Baonian, W.Zhenwei, N.Yamaguchi

    Plasma Sci. Technol.   Vol. 11   page： DOI   2009

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    Language：English   Publishing type：Research paper (scientific journal)  

  39. Feasibility study on a directional detection of WIMP using nano imaging tracker and X-ray microscope

    Y.Tawara, I.Sakurai, T.Naka, M.Natsume, K.Niwa

    EAS Publications Series   Vol. 36   page： 319-320   2009

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    Language：English   Publishing type：Research paper (scientific journal)  

  40. EDGE: Explorer of diffuse emission and gamma-ray burst explosions

    L.Piro et al.

    Experimental Astronomy   Vol. 23 ( 1 ) page： 67-89   2009

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    Language：English   Publishing type：Research paper (scientific journal)  

  41. Status of the DIOS mission

    Y.Tawara, I.Sakurai, A.Furuzawa, T.Ohashi, Y.Ishisaki, Y.Ezoe, A.Hoshino, H.Akamatsu, K.Ishikawa, K.Mitsuda, N.Y.Yamasaki, Y. Takei, K.Shinozaki, K.Masui, T.Yoshino, T.Hagihara, S.Kimura, H.Yoshitake

    SPIE   Vol. 7011   page： 70111H-70111H-10   2008

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    Language：English   Publishing type：Research paper (scientific journal)  

  42. Impurity diagnostics of magnetically confined high-temperature plasmas in Large Helical Device using compact X-ray spectrometer

    I.Sakurai, Y.Tawara, A.Furuzawa, S.Morita, M.Goto

    International Symposium on EcoTopia Science 2007     page： 447-448   2007

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    Language：English  

  43. The X-Ray Observatory Suzaku

    K.Mitsuda et al.

    Publications of the Astronomical Society of Japan   Vol. 59 ( 1 ) page： 1-7   2007

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    Language：English   Publishing type：Research paper (scientific journal)  

  44. New fabrication methods of mirror substrate with multi-stage closed shell for high-throughput X-ray telescope

    Y.Tawara, I.Sakurai, T.Matsuda, T.Torii, K.Suzui, M.Aoyama, T.Kondo, N.Mitutani

    SPIE   ( 6688 ) page： DOI   2007

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    Language：English   Publishing type：Research paper (scientific journal)  

  45. Design and Optimization of the Optics for the EDGE Wide-Field Spectrometer

    I.Sakurai et al.

    SPIE   Vol. 6688   page： DOI   2007

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    Language：English   Publishing type：Research paper (scientific journal)  

  46. EDGE: Explore of Diffuse emission and Gamma-ray burst Explosion

    J.W. den Herder et al.

    SPIE   Vol. 6688   page： DOI   2007

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    Language：English   Publishing type：Research paper (scientific journal)  

  47. Development of a wide Band and Compact X-ray Crystal Spectrometer for Iron Charge State Distribution Measurement on LHD

    I.Sakurai, Y.Tawara, C.Matusmoto, A.Furuzawa, S.Morita, M.Goto

    Plasma and Fusion Research   Vol. 2   page： S1068-S1068-4   2007

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    Language：English   Publishing type：Research paper (scientific journal)  

  48. Iron Kα measurement of LHD plasmas using a wide band and compact x-ray crystal spectrometer

    I.Sakurai, Y.Tawara, C.Matsumoto, A.Furuzawa, S.Morita, M.Goto

    Review of Scientific Instruments   Vol. 77   page： DOI   2006

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    Language：English   Publishing type：Research paper (scientific journal)  

  49. The demonstration model of four-stage x-ray telescope for DIOS mission

    Y.Tawara, I.Sakurai, A.Furuzawa, Y.Ogasaka, K.Tamura, R.Shibata, T.Miyazawa, Y.Fukaya, T.Masuda, T.Torii, M.Sakashita

    SPIE   Vol. 6266   page： DOI   2006

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    Language：English   Publishing type：Research paper (scientific journal)  

  50. Fine-pitch and thick-foil gas electron multipliers for cosmic x-ray polarimeters

    T.Tamagawa, A.Hayato, Y.Yamaguchi, H.Hamagaki, S.Hashimoto, M.Inuzuka, H.Miyasaka, I.Sakurai, F.Tokanai, K.Makishima

    SPIE   Vol. 6266   page： DOI   2006

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    Language：English   Publishing type：Research paper (scientific journal)  

  51. Development of gas electron multiplier foils with a laser etching technique

    T.Tamagawa, N.Tsunoda, A.Hayato, H.Hamagaki, M.Inuzuka, H.Miyasaka, I.Sakurai, F.Tokanai, K.Makishima

    Nuclear Instruments & Methods in Physics Research A   Vol. 560   page： 418-424   2006

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    Language：English   Publishing type：Research paper (scientific journal)  

  52. Spectroscopic Studies on Impurity Transport of Core and Edge Plasma in LHD

    S.Morita, M.Goto, S.Muto, R.Katai, H.Yamazaki, H.Nozato, A.Iwamae, M.Atake, T.Fujimoto, A.Sakaue, H.Nishimura, I.Sakurai, C.Matsumoto, A.Furuzawa, Y.Tawara,M.Aramaki, Y.Okumura, K.Sasaki, G.Xiznzu, L.Jiangang, W.Baonian, C.Zhengying

    Plasma Science & Technology   Vol. 8 ( 1 ) page： 55-   2006

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    Language：English   Publishing type：Research paper (scientific journal)  

  53. Development status and performance estimation of MAXI

    S.Ueno, H.Tomida, N.Isobe, H.Katayama, K.Kawasaki, T.Yokota, N.Kuramata, M.Matsuoka, T.Mihara, I.Sakurai, M.Nakajima, M.Kohama, H.Tsunemi, E.Miyata, N.Kawai, J.Kataoka, Y.Serino, Y.Yamamoto, A.Yoshida, H.Negoro

    SPIE   Vol. 5488   page： DOI   2004

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    Language：English   Publishing type：Research paper (scientific journal)  

  54. Observational response of MAXI onboard ISS

    N.Isobe, M.Matsuoka, S.Ueno, H.Tomida, K.Kawasaki, H.Katayama, T.Mihara, M.Kohama, I.Sakurai, M.Nakajima, N.Kawai, J.Kataoka, A.Yoshida, D.Takahashi, M.Uzawa, H.Tsunemi, E.Miyata, I.Tanaka

    SPIE   Vol. 5165   page： DOI   2004

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    Language：English   Publishing type：Research paper (scientific journal)  

  55. Solar cycle variations of modulation parameters of galactic cosmic-rays in the heliosphere

    K.Munakata, H.Miyasaka, I.Sakurai, S.Yasue, C.Kato, S.Akahane, M.Koyama, D.L.Hall, Z.Fujii, K.Fujimoto, S.Sakakibara, J.E.Humble, M.L.Duldig

    Advances in Space Research   Vol. 29 ( 10 ) page： 1527-   2002

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    Language：English   Publishing type：Research paper (scientific journal)  

  56. ASCA Observation of the Millisecond Pulsar PSR J2124-3358

    I.Sakurai, N.Kawai, K.Torii, H.Negoro, F.Nagase, S.Shibata, W.Becker

    Publications of the Astronomical Society of Japan   Vol. 53   page： 381-   2001

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    Language：English   Publishing type：Research paper (scientific journal)  

  57. ASCA Detection of Pulsed X-Ray Emission from PSR J0631+1036

    K.Torii, Y.Saito, F.Nagase, T.Yamagami, T.Kamae, M.Hirayama, N.Kawai, I.Sakurai, M.Namiki, S.Shibata, S.Gunji, J.P.Finley

    Astrophysical Journal   Vol. 551   page： 151-   2001

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    Language：English   Publishing type：Research paper (scientific journal)  

  58. Dependence of Gas Gain on X-ray-absorbed Position in Proportional Counter

    I.Sakurai, T.Mihara, N.Kawai, A.Yoshida, Y.Shirasaki, M.Matuoka, M.Sugizaki, T.Kamae

    SPIE   Vol. 4140   page： 511-   2000

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    Language：English   Publishing type：Research paper (scientific journal)  

▼display all

To the head of Papers.▲

MISC 2

  1. LIGAプロセスによる多種分析機器に対応する高純度微小試料台の製作 ―「はやぶさ２」サンプル分析に向けた新規技術開発― Invited

    櫻井郁也, 岡田育夫

    科学技術交流財団ニュース   Vol. 27 ( 1 ) page： 4 - 5   2021.7

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    Authorship：Lead author   Language：Japanese   Publishing type：Rapid communication, short report, research note, etc. (bulletin of university, research institution)  

  2. LIGAプロセスによる多種分析機器に対応する高純度微小試料台の製作 ―「はやぶさ２」サンプル分析に向けた新規技術開発― Invited

    櫻井郁也, 岡田育夫

    科学技術交流財団ニュース   Vol. 27 ( 1 ) page： 4 - 5   2021.7

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    Authorship：Lead author   Language：Japanese   Publishing type：Rapid communication, short report, research note, etc. (bulletin of university, research institution)  

To the head of MISC.▲

Presentations 46

  1. HAYABUSA2 RETURNED SAMPLES: UNIQUE AND PRISTINE RECORD OF SOLAR SYSTEM MATERIALS FROM ASTEROID RYUGU International coauthorship International conference

    M. Ito, N. Tomioka, M. Uesugi, A. Yamaguchi, N. Imae, N. Shirai, T. Ohigashi, M. Kimura, M-C, Liu, R.C. Greenwood, K. Uesugi, A. Nakato, K. Yogata, H. Yuzawa, Y. Kodama, A. Tsuchiyama, M. Yasutake, R. Findlay, I.A. Franchi, J.A. Malley, K.A. McCain, N. Matsuda, K.D. McKeegan, K. Hirahara, A. Takeuchi, S. Sekimoto, I. Sakurai, I. Okada, Y. Karouji, T. Yada, M. Abe, T. Usui, S. Watanabe, Y. Tsuda

    The 53rd Lunar and Planetary Science Conference (LPSC) 

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    Event date： 2022.3

    Language：English   Presentation type：Oral presentation (general)  

  2. あいちシンクロトロン光センターでのX線CT測定 Invited

    桜井郁也、花田賢志

    2020年度シンクロトロン光利用者研究会  2020.11.9  愛知県産業科学技術総合センター

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    Event date： 2020.11

    Language：Japanese   Presentation type：Oral presentation (invited, special)  

    Venue：愛知県瀬戸市  

  3. AichiSR BL8S2 イメージングXAFS測定システムの開発

    桜井郁也, 花田賢志, 永見哲夫, 田渕雅夫, 竹田慎吾, 加藤弘泰

    第33回日本放射光学会年会  2020.1.10  日本放射光学会

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    Event date： 2020.1

    Language：Japanese   Presentation type：Poster presentation  

    Venue：愛知県名古屋市   Country：Japan  

  4. あいちSRでできるX線CT観察入門 Invited

    桜井郁也, 花田賢志, 村井崇章、村瀬晴紀、福岡修

    X線CTを活用したソフトマテリアルの内部構造観察  2019.10.29  知の拠点あいち

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    Event date： 2019.10

    Language：Japanese   Presentation type：Oral presentation (general)  

    Venue：愛知県瀬戸市   Country：Japan  

  5. Study on X-ray radiolysis-induced-chemical reaction at interface between liquid and substrate for additive manufacturing process International conference

    Akinobu Yamaguchi, Ikuya Sakura, Ikuo Okada, Atsushi Yamaguchi, Mari Ishihara, Takao Fukuoka, Satoru Suzuki, Yuichi Utsumi

    14th Annual IEEE International Conference on Nano/Micro Engineered and Molecular Systems (IEEE-NEMS ) 

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    Event date： 2019.9

    Language：English   Presentation type：Oral presentation (general)  

  6. Study on X-ray radiolysis-induced-chemical reaction at interface between liquid and substrate for additive manufacturing process International conference

    A. Yamaguchi, I. Okada, I. Sakurai, S. Saegusa, Y. Utsumi

    The 14th International Conference on Nano/Micro Engineered and Molecular Systems  2019.4.11  Institute of Electrical and Electronics Engineers

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    Event date： 2019.4

    Language：English   Presentation type：Oral presentation (general)  

  7. あいちSR BL8S2 の現状

    桜井郁也、岡田育夫、花田賢志

    第７回あいちシンクロトロン光センター事業成果発表会  2019.3.5  科学技術交流財団

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    Event date： 2019.3

    Language：Japanese   Presentation type：Poster presentation  

    Venue：愛知県名古屋市   Country：Japan  

  8. 小惑星探査機「はやぶさ２」試料分析用試料台NanoAnalysislinkage grid（Kochi grid）

    桜井郁也、岡田育夫、竹田博昭、伊藤達也、上椙真之、富岡尚敬、花田賢志

    第8回名古屋大学シンクロトロン光研究センターシンポジウム  2019.1.17  名古屋大学シンクロトロン光研究センター

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    Event date： 2019.1

    Language：Japanese   Presentation type：Poster presentation  

    Venue：愛知県名古屋市   Country：Japan  

  9. あいちシンクロトロン光センターにおけるLIGAプロセスの開発

    岡田育夫、桜井郁也、馬場嘉信、竹田博昭、伊藤達也、山元リカルド、早川なぎさ、大橋拓也、河部亮太、日髙竜生、神谷光希、富田芳和、鈴木政幸、岡本巌、徳能竜一、花田賢志

    第8回名古屋大学シンクロトロン光研究センターシンポジウム  2019.1.17  名古屋大学シンクロトロン光研究センター

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    Event date： 2019.1

    Language：Japanese   Presentation type：Poster presentation  

  10. あいちSRBL8S2X線CT測定システムの紹介

    桜井郁也、花田賢志、上杉健太朗

    第8回名古屋大学シンクロトロン光研究センターシンポジウム  2019.1.17  名古屋大学シンクロトロン光研究センター

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    Event date： 2019.1

    Language：Japanese   Presentation type：Poster presentation  

    Venue：愛知県名古屋市   Country：Japan  

  11. 小惑星探査機「はやぶさ２」試料分析用試料台NanoAnalysislinkage grid（Kochi grid）の開発

    桜井郁也、岡田育夫、竹田博昭、伊藤達也、上椙真之、富岡尚敬、花田賢志

    第15回宇宙科学シンポジウム  2019.1.9  宇宙航空研究開発機構

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    Event date： 2019.1

    Language：Japanese   Presentation type：Poster presentation  

    Venue：神奈川県相模原市   Country：Japan  

  12. 放射光光化学反応による液相からの粒子生成と構造形成

    山口明啓, 桜井郁也, 岡田育夫, 石原マリ, 福岡隆夫, 鈴木哲, 内海裕一

    「センサ・マイクロマシンと応用システム」シンポジウム 

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    Event date： 2018.10 - 2018.11

    Language：Japanese   Presentation type：Poster presentation  

    Country：Japan  

  13. X線光化学反応によるナノ・マイクロ粒子生成

    山口明啓, 福岡隆夫, 岡田育夫, 桜井郁也, 内海裕一

    「材料シンポジウム」ワークショップ 

    　More details

    Event date： 2018.10

    Language：Japanese   Presentation type：Oral presentation (general)  

    Country：Japan  

  14. Study on fabrication system of 3D printing or additive manufacturing process using X-ray radiolysis International conference

    MNE 2018 

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    Event date： 2018.9

    Language：English   Presentation type：Oral presentation (general)  

    Country：Denmark  

  15. あいちSR BL8S2 X線CT測定システムの紹介

    桜井郁也、花田賢志、池野成裕、上杉健太郎

    第６回あいちシンクロトロン光センター事業成果発表会 

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    Event date： 2018.3

    Language：Japanese   Presentation type：Poster presentation  

    Country：Japan  

  16. シンクロトロン次世代ナノ・マイクロ加工技術の開発 Invited

    馬場嘉信 他

    知の拠点あいち重点研究プロジェクトII 公開セミナー 

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    Event date： 2018.3

    Language：Japanese   Presentation type：Oral presentation (general)  

    Country：Japan  

  17. LIGA加工プロセスを利用した小惑星探査機「はやぶさ２」NanoAnalysis linkage grid (Kochi grid) の開発

    桜井郁也、岡田育夫、竹田博昭、上椙真之、花田賢志

    第7回名古屋大学シンクロトロン光研究センターシンポジウム 

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    Event date： 2018.1

    Language：Japanese   Presentation type：Poster presentation  

    Country：Japan  

  18. 放射光光励起光プロセスと新展開 Invited

    山口明啓、岡田育夫、桜井郁也、内海裕一

    第7回名古屋大学シンクロトロン光研究センターシンポジウム 

    　More details

    Event date： 2018.1

    Language：Japanese   Presentation type：Oral presentation (general)  

    Country：Japan  

  19. シンクロトロン次世代ナノ・マイクロ加工技術の開発

    馬場嘉信、重点研究プロジェクトチーム　

    知の拠点あいち重点研究プロジェクトII 公開セミナー 

    　More details

    Event date： 2017.3

    Language：Japanese   Presentation type：Oral presentation (general)  

    Venue：豊田市八草町   Country：Japan  

  20. Synthesis of nanoparticles through X-ray radiolysis using synchrotron radiation International conference

    A.Yamaguchi, I.Okada, T.Fukuoka, M.Ishihara, I.Sakurai, Y.Utsum

    SPIE, Nanostructured Thin Films IX 

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    Event date： 2016.8 - 2016.9

    Language：English   Presentation type：Poster presentation  

    Venue：San Diego   Country：United States  

  21. Development of the thermal shield with high X-ray transmission for PRAXyS X-ray telescopes International conference

    1. Yuzuru Tawara, Ikuyuki Mitsuishi, Ryoki Suganuma, Taisuke Futamura, Takafumi Onishi, Kazushi Tachibana, Kenji Tachibana, Ikuya Sakurai

    SPIE Space Telescopes and Instrumentation 

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    Event date： 2016.8

    Language：English   Presentation type：Oral presentation (general)  

    Venue：San Diego   Country：United States  

  22. 小型衛星計画 DIOS 搭載 4 回反射型 X 線望遠鏡の拡張案の検討

    4. 馬場崎康敬、中道蓮、萬代絢子、田原譲、三石郁之、桜井郁也、鳥居龍 晴、立花健二、叶哲生

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    Event date： 2015.11

    Language：Japanese   Presentation type：Poster presentation  

    Venue：名古屋大学（愛知県名古屋市）   Country：Japan  

  23. シンクロトロン放射光 X 線による金属ナノ粒子の生成

    3. 山口明啓，松元建，岡田育夫，櫻井郁也，内海裕一

    電気学会 基礎・材料・共通部門大会 

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    Event date： 2015.9

    Language：Japanese   Presentation type：Oral presentation (general)  

    Country：Japan  

  24. 小型衛星計画 DIOS 搭載 4 回反射型 X 線望遠鏡開発の現状

    2. 馬場崎康敬、中道蓮、萬代絢子、田原譲、三石郁之、桜井郁也、鳥居龍晴、立花健二、叶哲生

    日本天文学会2015年秋季年会 

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    Event date： 2015.9

    Language：Japanese   Presentation type：Poster presentation  

    Venue：甲南大学（兵庫県神戸市）   Country：Japan  

  25. Development of the Four-stage X-ray telescope (FXT) for the DIOS mission (2) International conference

    1. I.Mitsuishi, Y.Babazaki, R.Nakamichi, A.Bandai, Y.Tawara, I.Sakurai, T.Torii, K.Tachibana, T.Onishi, S.Sugita, N.Kikuchi, T.Sato, T.Hayashi, R.Iizuka, Y.Maeda

    SPIE Space Telescopes and Instrumentation 

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    Event date： 2015.8

    Language：English   Presentation type：Oral presentation (general)  

    Venue：San Diego America   Country：United States  

  26. X線反射率・薄膜表面回折ビームライン AichiSR BL8S1の紹介

    桜井郁也、吉村倫拓、酒井久資、岡本渉、竹田美和

    第10回 放射光表面科学研究部会 顕微ナノ材料科学研究会 合同シンポジウム 

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    Event date： 2014.7 - 2014.8

    Language：Japanese   Presentation type：Poster presentation  

    Country：Japan  

  27. DIOS 搭載 4 回反射型 X 線望遠鏡 FXT の反射鏡開発 International conference

    馬場崎康敬, 滝澤峻也, 中道蓮, 田原譲, 桜井郁也, 渡辺剛, 鳥居龍晴, 立花健二, 大西崇文 (名古屋大学), 杉田聡司 (愛媛大学), 前田良和, 飯塚亮, 林多佳由 (ISAS/JAXA), 富川和紀、佐藤寿紀、菊池直道 (首都大学東京)

    日本天文学会2014年春季年会 

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    Event date： 2014.3

    Language：Japanese   Presentation type：Oral presentation (general)  

    Country：Japan  

  28. Ray-trace simulation for the Four-stage X-ray Telescope onboard the DIOS mission

    Babazaki, Y., Tawara, Y., Sakurai, I. Takizawa, S., Nakamichi, R. (Nagoya University) Sugita, S. (Ehime University)

    Suzaku+MAXI Conference 

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    Event date： 2014.2

    Language：English   Presentation type：Poster presentation  

    Country：Japan  

  29. Development of the Four-stage X-ray Telescope for the DIOS mission

    Takizawa, S., Tawara, Y., Sakurai, I., Babazaki, Y., Nakamichi, R. (Nagoya University) Sugita, S. (Ehime University)

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    Event date： 2014.2

    Language：English   Presentation type：Poster presentation  

    Country：Japan  

  30. AichiSR 総合材料評価IIビームライン BL8S1の現状

    高尾直樹、桜井郁也、岡本渉、渡邉信久、田渕雅夫、竹田美和、馬場嘉信

    第27回放射光学会年会 

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    Event date： 2014.1

    Language：Japanese   Presentation type：Poster presentation  

    Country：Japan  

  31. Development of Four-stage X-ray Telescope (FXT) for DIOS mission

    Ikuya Sakurai, Yuzuru Tawara, Shunya Takizawa, Yasunori Babazaki, Ren Nakamichi (Nagoya Univ), Satoshi Sugita (Ehime Univ), Yoshitomo Maeda and Takayuki Hayashi (ISAS)

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    Event date： 2014.1

    Language：English   Presentation type：Poster presentation  

    Country：Japan  

  32. DIOS搭載用4回反射型X線望遠鏡FXTの開発の現状

    滝澤 峻也, 馬場崎 康敬, 中道 連, 田原 譲, 櫻井 郁也, 渡邊 剛, 鳥居 龍晴, 立花 健二, 大西 崇文, 杉田 聡司

    日本天文学会2013年秋季年会 

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    Event date： 2013.9

    Language：Japanese   Presentation type：Oral presentation (general)  

    Venue：東北大学 宮城県仙台市   Country：Japan  

  33. DIOS 衛星搭載用 4回反射型X線望遠鏡 FXT の大口径反射鏡の開発

    渡邊 剛, 田原 譲, 杉田 聡司, 櫻井 郁也, 原 慎二, 増田 忠志, 鳥居 龍晴, 松下 幸司, 立花 健二, 大西 崇文

    日本天文学会2013年春季年会 

    　More details

    Event date： 2013.3

    Language：Japanese   Presentation type：Oral presentation (general)  

    Country：Japan  

  34. DIOS 衛星搭載用４回反射型Ｘ線望遠鏡の開発

    杉田聡司，渡邊剛、田原譲、桜井郁也、立花健二、大西崇文

    第3回小型科学衛星シンポジウム 

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    Event date： 2013.3

    Language：Japanese   Presentation type：Poster presentation  

    Venue：JAXA宇宙科学研究所   Country：Japan  

  35. 中部シンクロトロン光利用施設の材料評価ビームラインBL8S1の整備状況と予定

    渡邉信久，桜井郁也，田渕雅夫，朝倉博行，加藤一徳，野内三夫，杉本泰伸，真野篤志，中村永研，岡本渉，竹田美和，馬場嘉信

    第26回日本法社交学会年会　放射光科学合同シンポジウム 

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    Event date： 2013.1

    Language：Japanese   Presentation type：Poster presentation  

    Venue：名古屋大学   Country：Japan  

  36. DIOS 衛星搭載用4回反射X線望遠鏡 FXT の開発

    杉田 聡司，田原 譲，櫻井 郁也，原 慎二，渡邊 剛, 増田 忠志，鳥居 龍晴，松下 幸司，立花 健二, 大西 崇文

    日本天文学会2012年秋季年会 

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    Event date： 2012.9

    Language：Japanese   Presentation type：Poster presentation  

    Venue：大分大学 大分県大分市   Country：Japan  

  37. Development of four-stage x-ray telescope for DIOS mission International conference

    Y.Tawara, S.Sugita, S.Hara, I.Sakurai, K.Tachibana, Brian D.Ramsey

    SPIE 2012 

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    Event date： 2012.8

    Language：English   Presentation type：Oral presentation (general)  

    Country：United States  

  38. DIOS 衛星搭載用4回反射X線望遠鏡 FXT の開発

    杉田 聡司，田原 譲，櫻井 郁也，原 慎二，増田 忠志，鳥居 龍晴，松下 幸司，立花 健二

    日本天文学会2012年春季年会 

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    Event date： 2012.3

    Language：English   Presentation type：Poster presentation  

    Country：Japan  

  39. ダークバリオン探査を目指す小型衛星DIOSの開発の現状

    田原 譲、桜井郁也、杉田聡司、紅林優樹、大橋隆哉、石崎欣尚、江副祐一郎、佐々木伸、河原創、満田和久、山崎典子、竹井洋、篠崎慶亮、須藤 靖、藤本龍一、佐藤浩介、河合誠之、吉川耕司、DIOSワーキンググループ

    日本天文学会2010年秋季年会 

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    Event date： 2010.9

    Language：Japanese   Presentation type：Oral presentation (general)  

    Venue：金沢大学 石川県金沢市   Country：Japan  

  40. The development of DIOS FXT (Four-stage X-ray Telescope) International conference

    Y.Tawara, Y.Kurebayashi, S.Sugita, I.Sakurai, T.Masuda, T.Torii, K.Matsushita

    SPIE 2010 

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    Event date： 2010.8

    Language：English   Presentation type：Oral presentation (general)  

    Country：Japan  

  41. DIOS: the diffuse intergalactic oxygen surveyor: status and prospects International conference

    T.Ohashi, Y.Ishisaki, Y.Ezoe, S.Sasaki, H.Kawahara, K.Mitsuda, N.Y.Yamasaki, Y.Takei, M.Ishida, Y.Tawara, I.Sakurai, A.Furuzawa, Y.Suto, K.Yoshikawa, N.Kawai, R.Fujimoto, T.G.Tsuru, K.Matsushita, T.Kitayama

    SPIE Optical Engineering + Applications 2010 

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    Event date： 2010.8

    Language：English   Presentation type：Oral presentation (general)  

    Country：United States  

  42. DIOS 衛星搭載用４回反射Ｘ線望遠鏡開発の現状

    田原 譲、桜井郁也

    日本天文学会2010年春季年会 

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    Event date： 2010.3

    Language：Japanese   Presentation type：Oral presentation (general)  

    Venue：広島大学 広島県東広島市   Country：Japan  

  43. DIOS 衛星計画と開発の現状

    田原　譲、桜井郁也 、大橋隆哉、満田和久他、DIOS チーム

    日本天文学会2009年秋季年会 

    　More details

    Event date： 2009.9

    Language：Japanese   Presentation type：Oral presentation (general)  

    Country：Japan  

  44. Performance of the demonstration model of DIOS FXT International conference

    Y.Tawara, I.Sakurai, T.Masuda, T.Torii, K.Matsushita, B.D.Ramsey

    SPIE Optical Engineering + Applications 2009 

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    Event date： 2009.8

    Language：English   Presentation type：Oral presentation (general)  

    Country：United States  

  45. DIOS 搭載用X線望遠鏡の開発

    桜井郁也 、田原譲、鳥居龍晴、増田忠志、、松下幸司

    日本天文学会2009年春季年会 

    　More details

    Event date： 2009.3

    Language：Japanese   Presentation type：Poster presentation  

    Country：Japan  

  46. Iron Kα measurement of LHD plasmas using a compact X-ray spectrometer International conference

    Ikuya Sakurai, Yuzuru Tawara, Yoshito Haba, Shigeru Morita, Motoshi Goto

    ICPP 2008 

    　More details

    Event date： 2008.7

    Language：English   Presentation type：Oral presentation (general)  

    Country：United States  

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To the head of Presentations.▲

Research Project for Joint Research, Competitive Funding, etc. 2

  1. 革新的シンクロトロン光CT技術による次世代モノづくり産業創成

    2019.9 - 2022.3

    愛知県  知の拠点あいち重点研究プロジェクトⅢ 

    　 More details

    Authorship：Coinvestigator(s)  Grant type：Competitive

    Grant amount：\15888000

  2. 愛知県X線トポグラフィビームラインの高度化業務

    2017.4 - 2018.3

    　 More details

    Authorship：Principal investigator  Grant type：Collaborative (industry/university)

    Grant amount：\600000

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KAKENHI (Grants-in-Aid for Scientific Research) 2

  1. ガスアトマイズ粉末内部の気孔形成メカニズム解明と気孔形成の抑制

    Grant number：21H01663  2021.4 - 2024.3

    科学研究費助成事業  基盤研究(B)

    吉年 規治, 櫻井 郁也

    　 More details

    Authorship：Coinvestigator(s) 

    本研究は，ガスアトマイズ粉末に含まれる気孔を低減させることを目的として，放射光X 線CTを用いた高分解能透過観察を行い，画像解析により各種合金粉末の気孔プロファイルを取得し，その形成メカニズムを明らかにするものである．また，プロセス条件により，液滴内部に形成する気泡の抑制が可能であるか，さらに凝固完了までの短時間において，液滴外部への排出を促進させることが可能であるかについても実験的に確認する．これらの一連の実験により，高品質アトマイズ粉末を得るための材料プロセス工学としての学術的基盤を構築する．

  2. ２次元イメージ撮像型Ｘ線偏光検出器によるＬＨＤプラズマの測定

    2008.4 - 2011.3

    科学研究費補助金  若手研究(B)

    　 More details

    Authorship：Principal investigator 

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Social Contribution 1

  1. あいちシンクロトロン光センターでのX線CT測定

    Role(s)：Lecturer

    あいち産業科学技術総合センター  2020.11

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Media Coverage 2

  1. 極小分析台が大役 はやぶさ２採取の試料散逸防げ Newspaper, magazine

    中日新聞  中日新聞  1面  2021.2

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    Author：Myself 

  2. 地球の生命誕生の秘密を探る研究に愛知の技術が役立っています TV or radio program

    FM AICHI  DAYDREAM MAGIC  2021.2

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    Author：Myself 

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