SUZUKI Chihiro

SUZUKI Chihiro

J-GLOBAL         Last updated: Sep 20, 2018 at 16:52
SUZUKI Chihiro
National Institute for Fusion Science
Department of Helical Plasma Research, High-Temperature Plasma Physics Research Division
Job title
Assistant Professor
Doctor (Engineering)(Nagoya University)
Research funding number

Research Interests


Research Areas


Academic & Professional Experience

Apr 2007
Assistant Professor, Department of Helical Plasma Research, National Institute for Fusion Science, National Institutes of Natural Sciences
Apr 1999
Mar 2007
Research Associate, Department of Large Helical Device Project, National Institute for Fusion Science


Apr 1994
Mar 1999
Electronics, Department of Engineering, Nagoya University
Electronics, Graduate School, Division of Engineering, Nagoya University
Apr 1990
Mar 1994
Electrical Engineering, Department of Engineering, Nagoya University
Electrical Engineering, Faculty of Engineering, Nagoya University

Published Papers

Chihiro Suzuki, Fumihiro Koike, Izumi Murakami, Izumi Murakami, Naoki Tamura, Shigeru Sudo
Atoms   6(2) 24   May 2018   [Refereed]
© 2018 by the authors. We have systematically observed extreme ultraviolet (EUV) spectra from highly charged ions of nine lanthanide elements with atomic numbers from 60-70 in optically thin plasmas produced in the Large Helical Device (LHD). Disc...
C. Suzuki, T. Higashiguchi, A. Sasanuma, G. Arai, Y. Fujii, Y. Kondo, T. H. Dinh, F. Koike, I. Murakami, I. Murakami, G. O'Sullivan
Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms   408 253-256   Oct 2017   [Refereed]
© 2017 Elsevier B.V. We have observed soft X-ray spectra from highly charged ions of seven different lanthanide elements with atomic numbers ranging from 60 to 70 in laser-produced plasmas (LPPs) using CO2and Nd:YAG laser systems, the wavelengths ...
C. Suzuki, I. Murakami, I. Murakami, F. Koike, N. Tamura, H. A. Sakaue, S. Morita, S. Morita, M. Goto, M. Goto, D. Kato, D. Kato, H. Ohashi, T. Higashiguchi, S. Sudo, G. O'Sullivan
Plasma Physics and Controlled Fusion   59 014009   Jan 2017   [Refereed]
© 2017 IOP Publishing Ltd. We report recent results of extreme ultraviolet (EUV) spectroscopy of highly charged heavy ions in plasmas produced in the Large Helical Device (LHD). The LHD is an ideal source of experimental databases of EUV spectra b...
C. Suzuki, F. Koike, I. Murakami, N. Tamura, S. Sudo
Journal of Physics B: Atomic, Molecular and Optical Physics   48(14) 144012   Jul 2015   [Refereed]
© 2015 IOP Publishing Ltd. We have observed a number of different types of extreme ultraviolet (EUV) spectra from highly charged gadolinium (Gd), terbium (Tb) and dysprosium (Dy) ions in optically thin plasmas produced in the Large Helical Device ...
C. Suzuki, I. Murakami, T. Akiyama, S. Masuzaki, H. Funaba, M. Yoshinuma
Journal of Nuclear Materials   463 561-564   Jul 2015   [Refereed]
© 2014 Elsevier B.V. Abstract We have carried out vacuum ultraviolet (VUV) spectroscopy of impurity ions in detached plasmas with impurity gas seeding in the Large Helical Device (LHD). In neon (Ne) gas seeding experiments, temporal evolutions of ...
C. Suzuki, F. Koike, I. Murakami, N. Tamura, S. Sudo, E. Long, J. Sheil, E. White, F. O'Reilly, E. Sokell, P. Dunne, G. O'Sullivan
Journal of Physics: Conference Series   583 012007   Jan 2015   [Refereed]
© Published under licence by IOP Publishing Ltd. We have observed extreme ultraviolet (EUV) spectra from terbium (Tb) ions in optically thin and thick plasmas for a comparative study. The experimental spectra are recorded in optically thin, magnet...
C. Suzuki, F. Koike, I. Murakami, N. Tamura, S. Sudo, H. A. Sakaue, N. Nakamura, S. Morita, M. Goto, D. Kato, T. Nakano, T. Higashiguchi, C. S. Harte, G. Osullivan
Physica Scripta   89(11) 114009   Nov 2014   [Refereed]
© 2014 The Royal Swedish Academy of Sciences. We present recent results on the extreme ultraviolet (EUV) spectroscopy of highly charged high Z ions in plasmas produced in the Large Helical Device (LHD) at the National Institute for Fusion Science....
C. Suzuki, F. Koike, I. Murakami, N. Tamura, S. Sudo, C. O'Gorman, B. Li, C. S. Harte, T. Donnelly, G. O'Sullivan
Physica Scripta   T156 014078   Dec 2013   [Refereed]
We have observed extreme ultraviolet spectra from highly charged gadolinium (Gd) and neodymium (Nd) ions produced in two different types of light sources for comparative studies. Only broad quasicontinuum feature arising from unresolved transition...
C. Suzuki, K. Ida, Y. Suzuki, M. Yoshida, M. Emoto, M. Yokoyama
Plasma Physics and Controlled Fusion   55(1) 014016   Jan 2013   [Refereed]
We have newly developed a large-scale equilibrium database for real-time magnetic coordinate mapping system in the Large Helical Device. Thousands of free-boundary equilibria for each vacuum configuration have been calculated under wide ranges of ...
C. Suzuki, F. Koike, I. Murakami, N. Tamura, S. Sudo
Journal of Physics B: Atomic, Molecular and Optical Physics   45(13) 135002   Jul 2012   [Refereed]
We have observed extreme ultraviolet (EUV) spectra from highly charged gadolinium and neodymium ions in optically thin plasmas produced in the Large Helical Device at the National Institute for Fusion Science. Time evolutions of EUV spectra in the...


Hayato Ohashi, Hiroyuki Hara, Goki Arai, Tadashi Hatano, Takeo Ejima, Chihiro Suzuki, Shinichi Namba, Akira Sasaki, Masaharu Nishikino, Gerry O’Sullivan, Takeshi Higashiguchi
Applied Physics B: Lasers and Optics   124    Oct 2018
© 2018, Springer-Verlag GmbH Germany, part of Springer Nature. Laser-produced medium element plasma sources are being considered as strong candidates for in vivo photographic imaging of biological samples in laboratory-scale water-window soft X-ra...
Ellie Floyd Barte, Ellie Floyd Barte, Hiroyuki Hara, Toshiki Tamura, Takuya Gisuji, When Bo Chen, Ragava Lokasani, Ragava Lokasani, Tadashi Hatano, Takeo Ejima, Weihua Jiang, Chihiro Suzuki, Bowen Li, Padraig Dunne, Gerry O'Sullivan, Akira Sasaki, Takeshi Higashiguchi, Jiří Limpouch
Journal of Applied Physics   123    May 2018
© 2018 Author(s). We have characterized the soft x-ray and extreme ultraviolet (XUV) emission of rhodium (Rh) plasmas produced using dual pulse irradiation by 150-ps or 6-ns pre-pulses, followed by a 150-ps main pulse. We have studied the emission...
T. Goto, J. Miyazawa, N. Yanagi, H. Tamura, T. Tanaka, R. Sakamoto, C. Suzuki, R. Seki, S. Satake, M. Nunami, M. Yokoyama, A. Sagara
Plasma Physics and Controlled Fusion   60    May 2018
© 2018 IOP Publishing Ltd. Integrated physics analysis of plasma operation scenario of the compact helical reactor FFHR-c1 has been conducted. The DPE method, which predicts radial profiles in a reactor by direct extrapolation from the reference e...
Toshiki Tamura, Goki Arai, Yoshiki Kondo, Hiroyuki Hara, Tadashi Hatano, Takeo Ejima, Weihua Jiang, Chihiro Suzuki, Gerry O’Sullivan, Takeshi Higashiguchi
Optics Letters   43 2042-2045   May 2018
© 2018 Optical Society of America. We demonstrated the upper limitation to the number of shots, i.e., target lifetime, together with the number of photons emitted in the water-window soft x-ray spectral region from a number of targets used as sour...
M. Emoto, C. Suzuki, M. Yokoyama, M. Yokoyama, M. Yoshinuma, R. Seki, K. Ida, K. Ida
Fusion Science and Technology   1-6   Mar 2018
© 2018, Taylor & Francis. All rights reserved. The physical data of the Large Helical Device (LHD) project have been serviced by the Analyzed Data Server system, and approximately 600 kinds of physical data are served. In order to execute simula...
J. Sheil, D. Kilbane, G. O'Sullivan, L. Liu, L. Liu, C. Suzuki
Physical Review A   96    Dec 2017
© 2017 American Physical Society. It is well known that the lanthanide and actinide elements are formed by the filling of 4f and 5f subshells which occurs after the filling of 5d and 6d subshells, respectively, has begun. With increasing ionizatio...
H. Yamada, H. Yamada, M. Yokoyama, M. Yokoyama, R. Seki, R. Seki, C. Suzuki, S. Murakami, Y. Yoshimura, H. Yamaguchi, S. Maeta
Journal of Fusion Energy   36 197-203   Dec 2017
© 2017, Springer Science+Business Media, LLC, part of Springer Nature. Experimental evidence that indicates a positive effect of rotational transform on thermal transport has been shown for electron cyclotron heated plasmas on large helical device...
M. Yokoyama, M. Yokoyama, R. Seki, C. Suzuki, M. Sato, M. Emoto, S. Murakami, M. Osakabe, M. Osakabe, T. Ii Tsujimura, Y. Yoshimura, T. Ido, K. Ogawa, K. Ogawa, S. Satake, S. Satake, Y. Suzuki, Y. Suzuki, T. Goto, K. Ida, K. Ida, N. Pablant, D. Gates, F. Warmer, P. Vincenzi
Nuclear Fusion   57    Sep 2017
© 2017 IAEA, Vienna. The integrated transport analysis suite, TASK3D-a (Analysis), has been developed to be capable for routine whole-discharge analyses of plasmas confined in three-dimensional (3D) magnetic configurations such as the LHD. The rou...
T. J. Dobbins, T. J. Dobbins, K. Ida, C. Suzuki, M. Yoshinuma, T. Kobayashi, Y. Suzuki, M. Yoshida
Review of Scientific Instruments   88    Sep 2017
© 2017 Author(s). A new Motional Stark Effect (MSE) analysis routine has been developed for improved spatial resolution in the core of the Large Helical Device (LHD). The routine was developed to reduce the dependency of the analysis on the Pfirsc...
Y. Takeiri, Y. Takeiri, T. Morisaki, T. Morisaki, M. Osakabe, M. Osakabe, M. Yokoyama, M. Yokoyama, S. Sakakibara, S. Sakakibara, H. Takahashi, H. Takahashi, Y. Nakamura, Y. Nakamura, T. Oishi, T. Oishi, G. Motojima, G. Motojima, S. Murakami, K. Ito, A. Ejiri, S. Imagawa, S. Imagawa, S. Inagaki, M. Isobe, M. Isobe, S. Kubo, S. Masamune, T. Mito, T. Mito, I. Murakami, I. Murakami, K. Nagaoka, K. Nagasaki, K. Nishimura, M. Sakamoto, R. Sakamoto, R. Sakamoto, T. Shimozuma, K. Shinohara, H. Sugama, H. Sugama, K. Y. Watanabe, J. W. Ahn, N. Akata, N. Akata, T. Akiyama, N. Ashikawa, N. Ashikawa, J. Baldzuhn, T. Bando, E. Bernard, F. Castejón, H. Chikaraishi, M. Emoto, T. Evans, N. Ezumi, K. Fujii, H. Funaba, M. Goto, M. Goto, T. Goto, T. Goto, D. Gradic, Y. Gunsu, S. Hamaguchi, H. Hasegawa, H. Hasegawa, Y. Hayashi, C. Hidalgo, T. Higashiguchi, Y. Hirooka, Y. Hirooka, Y. Hishinuma, R. Horiuchi, R. Horiuchi, K. Ichiguchi, K. Ichiguchi, K. Ida, K. Ida, T. Ido, H. Igami, K. Ikeda, S. Ishiguro, S. Ishiguro, R. Ishizaki, A. Ishizawa, A. Ito, A. Ito, Y. Ito, A. Iwamoto, S. Kamio, K. Kamiya, O. Kaneko, R. Kanno, R. Kanno, H. Kasahara, D. Kato, D. Kato, T. Kato
Nuclear Fusion   57    Aug 2017
© 2017 IAEA, Vienna. As the finalization of a hydrogen experiment towards the deuterium phase, the exploration of the best performance of hydrogen plasma was intensively performed in the large helical device. High ion and electron temperatures, Ti...

Research Grants & Projects

Ministry of Education, Culture, Sports, Science and Technology: Grants-in-Aid for Scientific Research(若手研究(B))
Project Year: 2008 - 2010    Investigator(s): Chihiro SUZUKI
In the Large Helical Device, we have constructed a diagnostic system for simultaneous achievement of imaging and photoncounting in high temperature plasmas by using dual soft X-ray CCD cameras and several filters with different cutoff energies. In...
Study on Confinment of Helical Plasma