東京大学大学院新領域創成科学研究科複雑理工学専攻/理学系研究科物理学専攻
江尻・辻井研究室

Journal papers

• 2024年度
  
  • Masakatsu Fukumoto, Qilin Yue, Kazuaki Hanada, Shinichiro Kojima, Tomohide Nakano, Naoaki Yoshida, Ryuya Ikezoe3, Yoshihiko Nagashima,Takeshi Ido, Takumi Onchi, Hiroshi Idei, Hiroki Iguchi, Takumi Komiyama, Taiichi Shikama, Akira Ejiri, Suguru Masuzaki, Mizuki Sakamoto, Yoshio Ueda, Kengoh Kuroda, Kaori Kono, Shun Shimabukuro and Aki Higashijima
    Hydrogen removal by electron cyclotron wall conditioning with neon gas and its impact of tokamak plasma start-up on the QUEST spherical tokamak, Nucl. Fusion 64 066022 (2024) (May 7, 2024, 8 Pages)
  • F. Kin, S. Inagaki, K. Nagasaki, M. Luo, K. Itoh, K. Shinohara, A. Terakado, T. Minami, S. Kado, S. Kobayashi
    Observation of avalanche-like transport in Heliotron J and JT-60U plasmas
    Nucl. Fusion 64 066022 (2024) (May 7, 2024, 8 Pages)
  • N. Tsujii, A. Ejiri, Y. Ko, Y. Peng, K. Iwasaki, Y. Lin, K. Shinohara, O. Watanabe, S. Jang, T. Hidano, Y. Shirasawa, Y. Tian, F. Adachi and C.P. Moeller
    Studies of the outer-off-midplane lower hybrid wave launch scenario for plasma start-up on the TST-2 spherical tokamak
    Nucl. Fusion 64, 066023(10 pages, May 7, 2024) 10.1088/1741-4326/ad3f2d
  • A Bierwage, Ph Lauber, K Shinohara
    Time-helicity de-resonation (T-H) diagram for energy-selective mixing of charged particles during sawtooth crashes in tokamaks
    Plasma Physics and Controlled Fusion 66, 065012 (2024) (10pages. June 1, 2024)10.1088/1361-6587/ad4057
  • Fumiya ADACHI, Naoto TSUJII, Akira EJIRI, Kouji SHINOHARA, Seowon JANG, Yi PENG, Kotaro IWASAKI, Yu-Ting LIN, Zhengnan JIANG, Yiming TIAN, Yangguang JIANG, Shengyu WANG, Yijin XIONG, Masaru YOSHIDA,
    Two-Dimensional Axisymmetric Finite Element Simulation of Lower Hybrid Wave with an Iterative Scheme,
    Plasma Fusion Research 19, 1403026 (2024)(Jul. 23, 2024, 7 pages) https://doi.org/10.1585/pfr.19.1403026
  • J. Varela, D. Spong, L. Garcia, Y. Ghai, J. Ortiz, FAR3d, project collaborators
    Stability optimization of energetic particle driven modes in nuclear fusion devices: the FAR3d gyro-fluid code
    Frontiers in Physics 12 (1024) (45pages, Sep. 16, 2024) 10.3389/fphy.2024.1422411
  • Takahiro Murakami, Shinichiro Kojima, Kazuaki Hanada, Hiroshi Idei, Takeshi Ido, Ryuya Ikezoe, Makoto Hasegawa, Takumi Onchi, Kaori Kono, Kengoh Kuroda and Akira Ejiri
    Heating characteristic of electron Bernstein wave using high-field side X-mode injection in QUEST
    Plasma Phys. Control. Fusion 66 115016 (2024) (Oct. 10, 2024, 9 Pages)10.1088/1361-6587/ad802e
  • Andreas Bierwage, Timur Zh. Esirkepov, James K. Koga, Alexander S. Pirozhkov, Nobuyuki Aiba, Kai Huang, Masaki Kando, Hiromitsu Kiriyama, Akinobu Matsuyama, Kouji Shinohara, MasatoshiYagi, Gunsu S.Yun
    Evolution of a laser wake cavity in a MCF plasma
    Scientific Reports 14(1), 27853 (2024)(13pages, Nov. 13, 2024) 10.1038/s41598-024-77739-2
    
  • 核融合エネルギーフォーラム書籍編集委員会, 江尻晶, 南貴司, 谷口正樹, 武田秀太郎
    世界が驚く技術革命 「フュージョンエネルギー」
    シーアンドアール研究所 (176 pages, Jan. 11, 2025)
    
• 2023年度
  
  • Akira EJIRI, Yu-Ting LIN, Seowon JANG, Yi PENG, Kouji SHINOHARA, Takeshi IDO, Kaori KONO and Yoshihiko NAGASHIMA, Design Study of a Line Integrated Thomson Scattering System for TST-2 Spherical Tokamak Device
    Plasma and Fusion Res. 18, 2402025 (2023) (Apr. 27, 2023, 8 pages) DOI: 10.1585/pfr.18.2402025
  • Naoto TSUJII, Iwao YAMADA, Yongtae KO, Akira EJIRI, Kouji SHINOHARA, Osamu WATANABE, Seowon JANG, Yi PENG, Kotaro IWASAKI, Yuting LIN, Yuita SHIRASAWA, Taichi HIDANO, Yiming TIAN and Fumiya ADACHI
    Kinetic Analysis of the Characteristics of Electron Cyclotron Heating Assisted Ohmic Start-Up in the Trapped Particle Configuration of a Tokamak
    Plasma and Fusion Res. 18, 1402051 (2023) (Jul 14, 2023, 10 Pages) DOI: 10.1585/pfr.18.1402051
  • N. Yoneda, T. Shikama, F. Scotti, K. Hanada, H. Iguchi, H. Idei, T. Onchi, A. Ejiri, T. Ido, K. Kono, Y. Peng, Y. Osawa, G. Yatomi, A. Kidani, M. Kudo, R. Hiraka, K. Takeda, R.E. Bell, A. Maan, D.P. Boyle, R. Majeski, V.A. Soukhanovskii, M. Groth, A.G. McLean, R.S. Wilcox, C. Lasnier, K. Nakamura, Y. Nagashima, R. Ikezoe, M. Hasegawa, K. Kuroda, A. Higashijima, T. Nagata, S. Shimabukuro, I. Niiya, I. Sekiya and M. Hasuo
    Spectroscopic measurement of increases in hydrogen molecular rotational temperature with plasma-facing surface temperature and due to collisional-radiative processes in tokamaks
    Nuclear Fusion, 63, 096004 (2023) (Jul. 27, 2023, 16 pages) DOI 10.1088/1741-4326/acd4d1
  • Masataka Teshigawara, Eiji Takada , Shuhei Sumida, Kouji Shinohara, Takeo Nishitani, Sangaroon Siriyaporn, Longyong Liao, Kunihiro Ogawa, Mitsutaka Isobe, Shigeo Matsuyama, Misako Miwa, Sho Toyama, Isao Murata , Shingo Tamaki and Sachie Kusaka
    Development of Directional 14 MeV-Fusion Neutron Detector Using Liquid-Scintillator-Filled Capillaries
    Electronics 12, 3219 (2023) (Jul. 25, 2023, 12 pages)
  • Shuhei Sumida, Kouji Shinohara, Makoto Ichimura, Takahiro Bando, Andreas Bierwage, Takayuki Kobayashi, Hibiki Yamazaki, Shinichi Moriyama, Shunsuke Ide
    Observation of ion-cyclotron-range-of-frequency wave emission in electron-cyclotron-resonance-heated tokamak plasma"
    Plasma Physics and Controlled Fusion 65 075002 (2023) (May 18, 2023, 11 pages) DOI 10.1088/1361-6587/acd477
  • Hiroshi KASAHARA, Tetsuo SEKI, Kenji SAITO, Dimitry MOSEEV, Naoto TSUJII, Goro NOMURA and Motonari KANDA
    Wave Absorption Profile during ICRF Heating in Mixed Plasma in Large Helical Device
    Plasma and Fusion Res. 18, 2402065 (2023) (Aug 10, 2023, 5 Pages) DOI: 10.1585/pfr.18.2402065
  • 江尻晶、辻井直人、篠原孝司、
    TST-2装置の概要、 国内大学のトカマク実験装置の概観、
    NIFS-MEMO-93 (Sep.　1, 2023, 7 Pages)
  • Y. Ko, N. Tsujii, A. Ejiri, O. Watanabe, S. Jang, K. Shinohara, K. Iwasaki, Y. Peng, Y. Lin, Y. Shirasawa, T. Hidano, F. Adachi and Y. Tian,
    Development of an outer-off-midplane lower hybrid wave launcher for improved core absorption in non-inductive plasma start-up on TST-2
    Nuclear Fusion, 63, 126015 (2023) (Sep. 25, 2023, 10 Pages) DOI 10.1088/1741-4326/acf5ff
  • K. Kuroda R. Raman, T. Onchi, M. Hasegawa, K. Hanada, M. Ono, B.A. Nelson, J. Rogers, R. Ikezoe, H. Idei, T. Ido, M. Nagata, O. Mitarai, N. Nishino, Y. Otsuka, Y. Zhang, K. Kono, S. Kawasaki, T. Nagata, A. Higashijima, S. Shimabukuro, I. Niiya, I. Sekiya, K. Nakamura, Y. Takase, A. Ejiri and S. Murakami
    Demonstration of transient CHI startup using a floating biased electrode configuration
    Nucl. Fusion 64 014002 (2024) (7 Pages, Dec. 1, 2023) DOI 10.1088/1741-4326/ad0dd6
  • Kotaro IWASAKI, Akira EJIRI, Naoto TSUJII, Kouji SHINOHARA, Osamu WATANABE, Seowon JANG, Yi PENG, Yuting LIN, Fumiya ADACHI and Tian YIMING
    Anomalous Ion Heating in Lower Hybrid Wave Sustained Plasmas on the TST-2 Spherical Tokamak Device
    Plasma and Fusion Res. 18, 1402089 (2023) (Dec. 8, 2023, 4pages) DOI: 10.1585/pfr.18.1402089
  • Yiming TIAN, Akira EJIRI, Naoto TSUJII, Yuting LIN, Kouji SHINOHARA, Seowon JANG, Yi PENG, Kotaro IWASAKI and Fumiya ADACHI
    Spectroscopic Study of Molybdenum Impurity Generation in LHW Sustained Plasmas on TST-2 Spherical Tokamak
    Plasma and Fusion Research 19, 1402010 (2024) (6 Pages, Feb. 15, 2024) DOI: 10.1585/pfr.19.1402010
  • 原型炉設計合同特別チーム(江尻他）
    原型炉計測制御ワーキンググループ報告書
    QST-M-43
  • Tetsuto HARA, Motoshi GOTO, Kouji SHINOHARA, Satoshi OHDACHI
    Development of Zeeman Split-Assisted Tomography for Helium Line Emission Distribution in LHD
    Plasma and Fusion Research 19, 1402009 (2024) (8pages, Feb. 27, 2024) DOI10.1585/pfr.19.1402009
  • Takumi Komiyama, Taiichi Shikama, Kazuaki Hanada, Takeshi Ido2, Takumi Onchi, Kaori Kono, Akira Ejiri, Makoto Hasegawa, Satoshi Inoue, Masahiro Hasuo, Hiroshi Idei, Qilin Yue2, Kengo Kuroda, Aki Higashijima and Pakkapawn Prapan
    Comparison of electron temperature and density measured by helium line intensity ratio and Thomson scattering methods in ECH spherical tokamak plasma
    Plasma Phys. Control. Fusion 66 (2024) 045018 (8 Pages, March 6, 2024)
• 2022年度
  
  • Tokihiko Tokuzawa, Shigeru Inagaki, Michiaki Inomoto, Akira Ejiri, Tatsuhiro Nasu, Toru Ii Tsujimura and Katsumi Ida
    Application of Dual Frequency Comb Method as an Approach to Improve the Performance of Multi-Frequency Simultaneous Radiation Doppler Radar for High Temperature Plasma Diagnostics
    Applied Sciences 12, 4744 (2022) (May 8, 2022, 13 Pages) https://doi.org/10.3390/app12094744
  • Akira EJIRI, Hibiki YAMAZAKI, Yuichi TAKASE, Naoto TSUJII, Osamu WATANABE, Yi PENG, Kotaro IWASAKI, Yuki AOI, Yongtae KO, Kyohei MATSUZAKI, James H.P. RICE, Yuki OSAWA, Charles P. MOELLER, Yasuo YOSHIMURA, Hiroshi KASAHARA, Kenji SAITO, Tetsuo SEKI and Shuji KAMIO
    A Fast Electron Transport Model for Lower Hybrid Wave Sustained Plasmas
    Plasma and Fusion Res. 17, 1402037 (2022) (May. 13, 2022, 10 pages) DOI: 10.1585/pfr.17.1402037
  • Yu-Ting LIN, Akira EJIRI, Kouji SHINOHARA, Yi PENG and Seowon JANG
    Feasibility Study of Line Integrated Backward Thomson Scattering Measurement in Nuclear Fusion Reactors
    Plasma and Fusion Research 17, 1405098 (2022) (Sep 14, 2022, 9 Pages) DOI: 10.1585/pfr.17.1405098
  • T. Nasu, T. Tokuzawa, T.I. Tsujimura, K. Ida, M. Yoshinuma, T. Kobayashi, K. Tanaka, M. Emoto, S. Inagaki, A. Ejiri, and J. Kohagura
    Receiver circuit improvement of dual frequency-comb ka-band Doppler backscattering system in the large helical device (LHD)
    Rev. Sci. Instrum. 93, 113535 (2022).(Nov. 4, 2022, 5 pages) doi: 10.1063/5.0101588
  • T. Tokuzawa, T. Nasu, S. Inagaki, C. Moon, T. Ido, H. Idei, A. Ejiri, R. Imazawa, M. Yoshida, N. Oyama, K. Tanaka, and K. Ida
    3D metal powder additive manufacturing phased array antenna for multichannel Doppler reflectometer
    Rev. Sci. Instrum. 93, 113535 (2022).(Nov. 14, 2022, 6 pages) doi: 10.1063/5.0101723
  • Kouji SHINOHARA, Osamu WATANABE, Akira EJIRI, Naoto TSUJII, Seowon, JANG, Yi PENG, Kotaro IWASAKI, Yu-Ting LIN, Yongtae KO, Yuita SHIRASAWA, Taichi HIDANO, Yiming TIAN and Fumiya ADACHI
    Design of Probe to Investigate Energetic Electrons in Lower Hybrid Wave Plasmas in the TST-2 Spherical Tokamak
    Plasma and Fusion Research 18, 2402006 (2023) (Feb 17, 2023, 6 Pages)
  • Kaori KONO, Takeshi IDO, Akira EJIRI, Kazuaki HANADA, Qilin YUE, Makoto HASEGAWA, Yi PENG, Seiya SAKAI, Ryuya IKEZOE, Hiroshi IDEI, Syoji KAWASAKI, Kengoh KURODA, Takumi ONCHI, Yoshihiko NAGASHIMA and Seowon JANG
    Development of Thomson Scattering Measurement System for Long Duration Discharges on the QUEST Spherical Tokamak
    Plasma and Fusion Research,18, 1405012 (2023) (Feb 24, 2023, 4 pages )DOI: 10.1585/pfr.18.1405012
• 2021年度
  • T. Tokuzawa, K. Tanaka, T. Tsujimura, S. Kubo, M. Emoto, S. Inagaki, K. Ida, M. Yoshinuma, K.Y. Watanabe, H. Tsuchiya, A. Ejiri, T. Saito, K. Yamamoto, and LHD Experiment GroupA
    W-band millimeter-wave back-scattering system for high wavenumber turbulence measurements in LHD
    Rev. Sci. Instrum. 92, 043536 (2021) (Apr. 13, 2021, 5 Pages); https://doi.org/10.1063/5.0043474
  • Yongtae KO, Naoto TSUJII, Yuichi TAKASE, Akira EJIRI, Osamu WATANABE, Hibiki YAMAZAKI, Kotaro IWASAKI, Peng YI, James H.P. RICE, Yuki OSAWA, Takuma WAKATSUKI, MaikoYOSHIDA and Hajime URANO
    Optimization of Poloidal Field Configuration for Electron Cyclotron Wave Assisted Low Voltage Ohmic Start-Up in TST-2
    Plasma and Fusion Res. 16, 1402056 (2021) (Apr. 21, 2021, 6 pages) DOI: 10.1585/pfr.16.1402056
  • Shinichiro Kojima, Kazuaki Hanada, Hiroshi Idei, Takumi Onchi, Ryuya Ikezoe, Yoshihiko Nagashima, Makoto Hasegawa, Kengoh Kuroda, Kazuo Nakamura, Aki Higashijima, Takahiro Nagata, Shoji Kawasaki, Shun Shimabukuro, Hatem Elserafy, Masaharu Fukuyama, Akira Ejiri, Taiichi Shikama, Nao Yoneda, Ryota Yoneda, Tsuyoshi Kariya, Yuichi Takase, Sadayoshi Murakami, Nicola Bertelli and Masayuki Ono
    Observation of second harmonic electron cyclotron resonance heating and current-drive transition during non-inductive plasma start-up experiment in QUEST
    Plasma Physics and Controlled Fusion, 2021, 63(10), 105002 (Aug 27, 2021, 9 pages) DOI: 10.1088/1361-6587/ac1838
  • Akira EJIRI, Mafumi HIRATA, Makoto ICHIMURA, Masayuki YOSHIKAWA, Ryuya IKEZOE and Shuji KAMIO
    Development of a Fast Visible Light Measurement System for the Study of Ion Cyclotron Range of Frequency Waves in GAMMA 10/PDX Plasmas
    Plasma and Fusion Research 16, 1402096 (2021) (Sep. 17, 2021, 7 Pages) DOI: 10.1585/pfr.16.1402096
  • N. Tsujii, Y. Takase, A. Ejiri, O. Watanabe, H. Yamazaki, Y. Peng, K. Iwasaki, Y. Aoi, Y. Ko, K. Matsuzaki, J.H.P. Rice, Y. Osawa, C.P. Moeller, Y. Yoshimura
    Modification of the magneto-hydrodynamic equilibrium by the lower-hybrid wave driven fast electrons on the TST-2 spherical tokamak
    Nuclear Fusion 61, 116047 (2021) (Oct 11, 2021, pages) DOI: https://doi.org/10.1088/1741-4326/ac217d
  • Yuichi Takase, Akira Ejiri, Takaaki Fujita, Kazuaki Hanada, Hiroshi Idei, Masayoshi Nagata, Takumi Onchi, Yasushi Ono, Hitoshi Tanaka, Naoto Tsujii, Masaki Uchida, Kohei Yasuda, Hiroshi Kasahara, Sadayoshi Murakami, Yasuhiko Takeiri, Y Todo, Shunji Tsuji-Iio1 and Yutaka Kamada
    Overview of coordinated spherical tokamak research in Japan
    Nuclear Fusion, 62, 042011 (2022) (Feb. 14, 2022, 15 Pages) DOI: https://doi.org/10.1088/1741-4326/ac29cf
  • Y. Kamada and E. Di Pietro and M. Hanada and P. Barabaschi and S. Ide and S. Davis and M. Yoshida and G. Giruzzi and C. Sozzi and the JT-60SA Integrated Project Team
    Completion of JT-60SA construction and contribution to ITER
    Nuclear Fusion, 62, 042002 (2022) (Mar. 1, 2022, 18 pages) DOI: https://doi.org/10.1088/1741-4326/ac10e7
  • M. Yoshida, G. Giruzzi, N. Aiba, J.F. Artaud, J. Ayllon-Guerola, L. Balbinot, O. Beeke, E. Belonohy, P. Bettini, W. Bin, A. Bierwage, T. Bolzonella, M. Bonotto, C. Boulbe, J. Buermans, M Chernyshova, S. Coda, R. Coelho, S. Davis, C. Day, G.De Tommasi, M.Dibon, A.Ejiri, G.Falchetto, A. assina, B.Faugeras, L. Figini, M. Fukumoto, S. Futatani, K. Galazka, J. Garcia, M. Garcia-Munoz, L. Garzotti, L. Giacomelli, L. Giudicotti, S. Hall, N. Hayashi, C. Hoa, M. Honda, K. Hoshino, M. Iafrati, A. Iantchenko, S. Ide, S. Iio, R. Imazawa, S. Inoue, A. Isayama, E. Joffrin, K. Kamiya, Y. Ko, M. Kobayashi, T. Kobayashi, G. Kocsis, A. Kovacsik, T. Kurki-Suonio, B Lacroix, P. Lang, Ph. Lauber, A. Louzguiti, E.de la Luna, G. Marchiori, M. Mattei, A. Matsuyama, S. Mazzi, A. Mele, F. Michel, Y. Miyata, J. Morales, P. Moreau, A. Moro, T. Nakano, M. Nakata, E. Narita, R. Neu, S. Nicollet, M. Nocente, S. Nowak, F.P. Orsitto, V. Ostuni, Y. Ohtani, N. Oyama, R. Pasqualotto, B. Pegourie, E. Perelli, L. Pigatto, C. Piccinni, A. Pironti, P. Platania, B. Ploeckl, D. Ricci, P. Roussel, G. Rubino, R. Sano, K. Särkimäki, K. Shinohara, S. Soare, C. Sozzi, S. Sumida, T. Suzuki, Y. Suzuki, T. Szabolics T. Szepesi, Y. Takase, M. Takech, N. Tamura, K. Tanaka, H. Tanaka, M. Tardocchi, A. Terakado, H. Tojo, T. Tokuzawa, A. Torre, N. Tsujii, H. Tsutsui, Y. Ueda, H. Urano, M. Valisa, M. Vallar, J. Vega, F. Villone, T. Wakatsuki, T. Wauters, M. Wischmeier, S. Yamoto, L. Zani,
    Plasma physics and control studies planned in JT-60SA for ITER and DEMO operations and risk mitigation
    Plasma Physics and Controlled Fusion, 64, 054004 (2022) (Mar. 22, 2022, 12 Pages) https://doi.org/10.1088/1361-6587/ac57a0
  • O. Watanabe and Y. Ko and N. Tsujii and Y. Takase and A. Ejiri and K. Shinohara and Y. Peng and K. Iwasaki and I. Yamada and G. Yatomi and C.P. Moeller and Y.-K.M. Peng
    Design of a finline antenna for current drive in TST-2
    Fusion Engineering and Design, 178, 113094 (2022) (Mar. 17, 2022, 8 Pages)https://doi.org/10.1016/j.fusengdes.2022.113094
• 2020年度
  • James H.P. RICE, Naoto TSUJII, Yuichi TAKASE, Akira EJIRI, Osamu WATANABE, Hibiki YAMAZAKI, Yi PENG, Kotaro IWASAKI, Yuki AOI, Yongtae KO, Kyohei MATSUZAKI and Yuki OSAWA
    Langmuir Probe Measurements of Scrape-Off Layer Conditions in RF-Driven Plasmas in TST-2
    Plasma and Fusion Res. 15, 2402009 (2020) (Apr. 6, 2020, 4 Pages) DOI: 10.1585/pfr.15.2402009
  • Naoto TSUJII, Yusuke YOSHIDA, Yuichi TAKASE, Akira EJIRI, Osamu WATANABE, Hibiki YAMAZAKI, Yi PENG, Kotaro IWASAKI, Yuki AOI, Yongtae KO, Kyohei MATSUZAKI, James H.P. RICE and Yuki OSAWA
    Studies of a Lower-Hybrid Wave Driven Plasma Equilibrium with a Hybrid-MHD Model on the TST-2 Spherical Tokamak
    Plasma and Fusion Res. 15, 2402010 (2020) (Apr. 6, 2020, 8 Pages) DOI: 10.1585/pfr.15.2402010
  • Akira EJIRI, Yuki AOI, Hibiki YAMAZAKI, Naoto TSUJII, Yuichi TAKASE, Osamu WATANABE, Yongtae KO, James H.P. RICE, Yi PENG, Kotaro IWASAKI, Kyohei MATSUZAKI, Yuki OSAWA and Yasuo YOSHIMURA
    Development of a Compact Hard X-Ray Camera on the TST-2 Spherical Tokamak
    
  • Yi PENG, Akira EJIRI, Yuichi TAKASE, Naoto TSUJII, Osamu WATANABE, Kotaro IWASAKI, Yongtae KO, James Hamilton Palmer RICE, Yuki OSAWA, Go YATOMI, Iwao YAMADA, Takeshi IDO, Yoshihiko NAGASHIMA and Kaori KONO
    Investigation on Double-Pass Configurations for Thomson Scattering Measurements
    Plasma and Fusion Research 16, 1402027 (2021)(Mar 12, 2021, 9 pages) DOI: 10.1585/pfr.16.1402027
  • N.Yoneda, T.Shikama, K.Hanada, S.Mori, T.Onchi, K.Kuroda, M.Hasuo, A.Ejiri, K.Matsuzaki, Y.Osawa, Y.Peng, Y.Kawamata, S.Sakamoto, H.Ideib, T.Ido, K.Nakamura, Y.Nagashima, R.Ikezoe, M.Hasegawa, A.Higashijima, T.Nagata, S.Shimabukuro
    Toroidal flow measurements of impurity ions in QUEST ECH plasmas using multiple viewing chords emission spectroscopy
    Nuclear Materials and Energy 26, 100905 (2021) (Jan 13, 2021, 7 pages) https://doi.org/10.1016/j.nme.2021.100905, doi.org/10.1016/j.nme.2021.100905
  • T. Onchi, H. Idei, M. Fukuyama, D. Ogata, R. Ashida, T. Kariya, A. Ejiri, K. Matsuzaki, Y. Osawa, Y. Peng, S. Kojima, O. Watanabe, M. Hasegawa, K. Nakamura, K. Kuroda, R. Ikezoe, T. Ido, K. Hanada, N. Bertelli, M. Ono, and A. Fukuyama
    Non-inductive plasma current ramp-up through oblique injection of harmonic electron cyclotron waves on the QUEST spherical tokamak
    Physics Plasmas 28, 022505 (2021) (Feb. 3, 2021, 12 Pages); https://doi.org/10.1063/5.0031357, doi: 10.1063/5.0031357
  • 關良輔、辻井直人
    TASK-WMやAORSAを用いた波動加熱シミュレーション
    J. Plasma Fusion Research 96, 669-673 (2020)
  • 高瀬雄一
    TST-2におけるMHz帯電磁波による波動加熱実験
    J. Plasma Fusion Research 96, 655-659 (2020)
  • Satoru Mori, Taiichi Shikama, Kazuaki Hanada, Nao Yoneda, Arseniy A. Kuzmin , Masahiro Hasuo, Hiroshi Idei, Takumi Onchi, Akira Ejiri, Yuki Osawa, Yi Peng, Kyohei Matsuzaki, Shinichiro Kado, Keiji Sawada, Takeshi Ido, Kazuo Nakamura, Ryuya Ikezoe, Yoshihiko Nagashima, Makoto Hasegawa, Kengo Kuroda, Aki Higashijima, Takahiro Nagata and Shun Shimabukuro
    Spectroscopic Measurement of Hydrogen Atom Density in a Plasma Produced with 28 GHz ECH in QUEST
    Atoms 8, 44 (2020) (Aug 18, 2020, 8 Pages) DOI: https://doi.org/10.3390/atoms8030044
  • Yoshio NAGAYAMA, Akira EJIRI, Yuichi TAKASE, Naoto TSUJII, Hideya NAKANISHI, Masaki OHSUNA, Hayato TSUCHIYA and Soichiro YAMAGUCH
    Measurement of Electron Density Fluctuations Using O-Mode Microwave Imaging Reflectometry in a TST-2 Spherical Tokamak
    Plasma and Fusion Res. 15, 2402060 (2020) (Aug. 19, 2020, 5 Pages) DOI: 10.1585/pfr.15.2402060
• 2019年度
  • Yuya KAWAMATA, Akira EJIRI, Kyohei MATSUZAKI, Yuichi TAKASE, Naoto TSUJII, Takumi ONCHI and Yoshihiko NAGASHIMA
    Improvement of Aperture Configuration to Reduce the Stray Light for Thomson Scattering Measurement Using a Peripheral Beam Profile Monitor
    Plasma and Fusion Research, 14, 1402072 (2019) (Apr. 11, 2019, 4 Pages) DOI: 10.1585/pfr.14.1402072
  • S. Yajima, Y. Takase, Y. Tajiri, Y. Takei, N. Tsujii, H. Yamazaki, C.P. Moeller and T. Shinya
    Development of capacitively-coupled combline antennas for current drive in tokamaks
    Nucl. Fusion 59, 066004, (2019.4.25, 7 Pages) DOI:10.1088/1741-4326/ab0f61
  • Yongtae KO, Naoto TSUJII, Satoru YAJIMA, Yuichi TAKASE, Akira EJIRI, Osamu WATANABE, Hibiki YAMAZAKI, Charles P. MOELLER, Yasuo YOSHIMURA, Yusuke YOSHIDA, Yusuke IIDA, Kotaro IWASAKI, Yuya KAWAMATA, Sho SAKAMOTO, Yuki AOI, Teruki OISHI, Kyohei MATSUZAKI and James RICE
    Measurement of the Lower Hybrid Wave Using RF Magnetic Probes on the TST-2 Spherical Tokamak
    Plasma and Fusion Research,14, 3402107 (2019) (Jun. 19, 2019, 5 Pages) DOI: 10.1585/pfr.14.3402107
  • Idei, H., Onchi, T., Kariya, T., Tsujimura, T.I., Kubo, S., Kobayashi, S., Sakaguchi, M., Imai, T.,
    Hasegawa, M., Nakamura, K., Mishra, K., Fukuyama, M., Yunoki, M., Kojima, S., Watanabe, O., Kuroda, K., Hanada, K., Nagashima, Y., Ejiri, A., Matsumoto, N., Ono, M., Higashijima, A., Nagata, T., Shimabukoro, S., Takase, Y.
    28-GHz ECHCD system with beam focusing launcher on the QUEST spherical tokamak
    Fusion Engineering and Design, 146, 1149 (2019) (Feb 23, 2019, 4 Pages)DOI: 10.1016/j.fusengdes.2019.02.027
  • H. Idei, T. Onchi, K. Mishra, H. Zushi, T. Kariya, T. Imai, O. Watanabe, R. Ikezoe, K. Hanada, M. Ono, A. Ejiri, J. Qian, K. Nakamura, A. Fujisawa, Y. Nagashima, M. Hasegawa, K. Matsuoka, A. Fukuyama, S. Kubo, M. Yoshikawa, M. Sakamoto, S. Kawasaki, A. Higashijima, S. Ide, Y. Takase and S. Murakami
    Electron heating of over-dense plasma with dual-frequency electron cyclotron waves in fully non-inductive plasma ramp-up on the QUEST spherical tokamak
    Nuclear Fusion, 60, 01630 (2020) (Dec 5, 2019, 13 Pages)
  • A. Ejiri, Y. Takase, N. Tsujii, S. Yajima, H. Yamazaki and O. Mitarai
    Theoretical study of pre-ionization by inductive field in tokamaks
    Nuclear Fusion, 60, 036015 (2020) (Feb 13, 2020, 22 Pages)
  • Yongtae KO, Yuichi TAKASE, Akira EJIRI, Naoto TSUJII, Osamu WATANABE, Hibiki YAMAZAKI, Charles P. MOELLER, Yasuo YOSHIMURA, Kotaro IWASAKI, Yuki AOI, Kyohei MATSUZAKI, James H.P. RICE, Yi PENG and Yuki OSAWA
    Observation of Parametric Decay Instability on TST-2 Lower Hybrid Wave Driven Plasma
    Plasma and Fusion Res. 15, 2402007 (2020) (Mar 13, 2020, 5 Pages) DOI: 10.1585/pfr.15.2402007
• 2018年度
  • Benedikt Roidl, Yasushi Todo, Yuichi Takase, Naoto Tsujii, Akira Ejiri, Yusuke Yoshida, Satoru Yajima, Takahiro Shinya
    A simulation environment to simulate lower-hybrid-wave-driven plasmas efficiently
    Computer Physics Communications, 230, 38 (2018) (2018.5.4, 11 pages) https://doi.org/10.1016/j.cpc.2018.04.018
  • T. Ii Tsujimura, Y. Mizuno, T. Tokuzawa, Y. Ito, S. Kubo, T. Shimozuma, Y. Yoshimura, H. Igami, H. Takahashi, A. Ejiri, the LHD Experiment Group
    Real-time control of electron cyclotron wave polarization in the LHD
    Fusion Engineering and Design, 131, 130–134 (2018). (2018.5.2, pages) https://doi.org/10.1016/j.fusengdes.2018.04.062
  • Hibiki YAMAZAKI, Hirokazu FURUI, Kotaro YAMASAKI, Tomohiko USHIKI, Akira EJIRI, Michiaki INOMOTO, Yuichi TAKASE, Yasushi ONO, Naoto TSUJII, UTST group and TST-2 group
    Measurement of the Local Current Density Inside a Current Sheet Using a Rogowski Coil Array on UTST Merging Plasmas
    Plasma and Fusion Res. 13, 1202093 (2018) ( 2018.7.26, 3 pages) DOI: 10.1585/pfr.13.1202093
  • Satoru YAJIMA, Yuichi TAKASE, Akira EJIRI, Naoto TSUJII, Hibiki YAMAZAKI, Charles P. MOELLER, Takahiro SHINYA, Yuki TAKEI, Yoshiyuki TAJIRI, Yusuke YOSHIDA, Akito SATO, Akichika KITAYAMA and Naoki MATSUMOTO
    Current Drive Experiment Using Top/Outboard Side Lower Hybrid Wave Injection on TST-2 Spherical Tokamak
    Plasma Fusion Research, 13, 3402114 (2018) (2018. 9. 25 4pages)
  • T. Tokuzawa,H. Tsuchiya, T. Tsujimura,M. Emoto,H. Nakanishi,S. Inagaki, K. Ida,H. Yamada, A. Ejiri, K. Y. Watanabe, K. Oguri, T. Akiyama, K. Tanaka, I. Yamada, and LHD Experiment Group
    Microwave frequency comb Doppler reflectometer applying fast digital data acquisition system in LHD
    Rev. Sci. Instrum. 89, 10H118 (2018)(2018.10.5 5 pages)doi: 10.1063/1.5035118
  • L. F. Delgado-Aparicio, J. Wallace, H. Yamazaki, P. VanMeter, L. Reusch, M. Nornberg, A. Almagari, J. Maddox, B. Luethi, M. Rissi, T. Donath, D. Den Hartog, J. Sarff, P. Weix, J. Goetz, N. Pablant, K. Hill, B. Stratton, P. Efthimion, Y. Takase, A. Ejiri, and M. Ono
    Simulation, design, and first test of a multi-energy soft x-ray (SXR) pinhole camera in the Madison Symmetric Torus (MST)
    Review of Scientific Instruments 89, 10G116 (2018) (2018.10.8, 5 Pages) https://doi.org/10.1063/1.5038798
  • H. Yamazaki, L. F. Delgado-Aparicio, R. Groebner, B. Grierson, K. Hill, N. Pablant, B. Stratton, P. Efthimion, A. Ejiri, Y. Takase, and M. Ono
    A computational tool for simulation and design of tangential multi-energy soft x-ray pin-hole cameras for tokamak plasmas
    Review of Scientific Instruments 89, 10G120 (2018) (2018.10.11, 5 Pages) https://doi.org/10.1063/1.5038788
  • Yasuo YOSHIMURA, Akira EJIRI, Ryosuke SEKI, Ryuichi SAKAMOTO, Kenichi NAGAOKA, Takashi SHIMOZUMA, Hiroe IGAMI, Hiromi TAKAHASHI, Toru I. TSUJIMURA, Felix WARMER, Kota YANAGIHARA, Yuki GOTO, Katsumi IDA, Mikiro YOSHINUMA, Tatsuya KOBAYASHI, Shin KUBO, Masaki OSAKABE, Tomohiro MORISAKI and the LHD Experiment Group
    Effect of Electron Cyclotron Current Drive on the Ion Temperature in the Plasma Core Region of the Large Helical Device
    Plasma and Fusion Research, 13, 1402124 (2018) (Dec. 20, 2018, 5 Pages) DOI: 10.1585/pfr.13.1402124
  2017年度
  • K. Kuroda, R. Raman, K. Hanada, M. Hasegawa, T. Onchi, M. Ono, T. Jarboe, B.A. Nelson, M. Nagata, O. Mitarai, K. Nakamura, H. Idei, J. Rogers, S. Kawasaki, T. Nagata, A. Kuzmin, S. Kojima, O. Watanabe, A. Higashijima, Y. Takase, A. Fukuyama,
    Current Start-Up Using the New CHI System,
    Plasma Fusion Res. 12, 1202020 (2017). (2017.4.17, 3 pages) doi: 10.1585/pfr.12.1202020
  • H. Furui, A. Ejiri, Y. Nagashima, Y. Takase, M. Sonehara, N. Tsujii, B. Roidl, T. Shinya, H. Togashi, H. Homma, K. Nakamura, T. Takeuchi, S. Yajima, Y. Yoshida, K. Toida, W. Takahashi, and H. Yamazaki
    Measurements of edge plasma parameters during internal reconnection events in the TST-2 spherical tokamak
    Physics of Plasmas 24, 062504 (2017)(2017.6.9, 5 Pages); http://doi.org/10.1063/1.4985077
  • Y. Takase, A. Ejiri, T. Fujita, N. Fukumoto, A. Fukuyama, K. Hanada, H. Idei, M. Nagata, Y. Ono, H. Tanaka, M. Uchida, R. Horiuchi, Y. Kamada, H. Kasahara, S. Masuzaki, Y. Nagayama, T. Oishi, K. Saito, Y. Takeiri and S. Tsuji-Iio
    Overview of spherical tokamak research in Japan
    Nucl Fusion,57, 102005 (2017) (2017. 6. 20, 12 Pages)
  • Hiro TOGASHI, Hibiki YAMAZAKI, Akira EJIRI, Yuichi TAKASE, Naoto TSUJII, Satoru YAJIMA, Yusuke YOSHIDA and TST-2 team
    Development of a Hard X-Ray Profile Measurement System in the TST-2 Spherical Tokamak
    Plasma Fusion Res. 12, 1402030 (2017). (2017.7.19, 4 pages) DOI: 10.1585/pfr.12.1402030
  • Y. Takeiri, T. Morisaki, M. Osakabe, M. Yokoyama, S. Sakakibara, H. Takahashi, Y. Nakamura, T. Oishi, G. Motojima, S. Murakami, K. Ito, A. Ejiri, S. Imagawa, S. Inagaki, M. Isobe, S. Kubo, S. Masamune, T. Mito, I. Murakami, K. Nagaoka, K. Nagasaki, K. Nishimura, M. Sakamoto, R. Sakamoto, T. Shimozuma, K. Shinohara, H. Sugama, K. Y. Watanabe, J. W. Ahn, N. Akata, T. Akiyama, N. Ashikawa, J. Baldzuhn, T. Bando, E. Bernard, F. Castejon, H. Chikaraishi, M. Emoto, T. Evans, N. Ezumi, K. Fujii, H. Funaba, M. Goto, T. Goto, D. Gradic, Y. Gunsu, S. Hamaguchi, H. Hasegawa, Y. Hayashi, C. Hidalgo, T. Higashiguchi, Y. Hirooka, Y. Hishinuma, R. Horiuchi, K. Ichiguchi, K. Ida, T. Ido, H. Igami, K. Ikeda, S. Ishiguro, R. Ishizaki, A. Ishizawa, A. Ito, Y. Ito, A. Iwamoto, S. Kamio, K. Kamiya, O. Kaneko, R. Kanno, H. Kasahara, D. Kato, T. Kato, K. Kawahata, G. Kawamura, M. Kisaki, S. Kitajima, W. H. Ko, M. Kobayashi, S. Kobayashi, T. Kobayashi, K. Koga, A. Kohyama, R. Kumazawa, J. H. Lee, D. Lopez-Bruna, R. Makino, S. Masuzaki, Y. Matsumoto, H. Matsuura, O. Mitarai, H. Miura, J. Miyazawa, N. Mizuguchi, C. Moon, S. Morita, T. Moritaka, K. Mukai, T. Muroga, S. Muto, T. Mutoh, T. Nagasaka, Y. Nagayama, N. Nakajima, Y. Nakamura, H. Nakanishi, H. Nakano, M. Nakata, Y. Narushima, D. Nishijima, A. Nishimura, S. Nishimura, T. Nishitani, M. Nishiura, Y. Nobuta, H. Noto, M. Nunami, T. Obana, K. Ogawa, S. Ohdachi, M. Ohno, N. Ohno, H. Ohtani, M. Okamoto, Y. Oya, T. Ozaki, B. J. Peterson, M. Preynas, A. Sagara, K. Saito, H. Sakaue, A. Sanpei, S. Satake, M. Sato, T. Saze, O. Schmitz, R. Seki, T. Seki, I. Sharov, A. Shimizu, M. Shiratani, M. Shoji, C. Skinner, R. Soga, T. Stange, C. Suzuki, Y. Suzuki, S. Takada, K. Takahata, A. Takayama, S. Takayama, Y. Takemura, Y. Takeuchi, H. Tamura, N. Tamura, H. Tanaka, K. Tanaka, M. Tanaka, T. Tanaka, Y. Tanaka, S. Toda, Y. Todo, K. Toi, M. Toida, M. Tokitani, T. Tokuzawa, H. Tsuchiya, T. Tsujimura, K. Tsumori, S. Usami, J. L. Velasco, H. Wang, T. -H. Watanabe, T. Watanabe, J. Yagi, M. Yajima, H. Yamada, I. Yamada, O. Yamagishi, N. Yamaguchi, Y. Yamamoto, N. Yanagi, R. Yasuhara, E. Yatsuka, N. Yoshida, M. Yoshinuma, S. Yoshimura, Y. Yoshimura
    Extension of the operational regime of the LHD towards a deuterium experiment
    Nuclear Fusion, 57, 102023 (2017). (2017.8.21, 10 pages)
  • N. Tsujii, Y. Takase, A. Ejiri, T. Shinya, H. Togashi, S. Yajima, H. Yamazaki, C.P. Moeller, B. Roidl, M. Sonehara, W. Takahashi, K. Toida and Y. Yoshida,
    Numerical modeling of lower hybrid current drive in fully non-inductive plasma start-up experiments on TST-2,
    Nuclear Fusion, 57, 126032 (2017). (2017.9.27, 11 pages)
  • A. Ejiri, H. Tanaka, W. Takahashi, A. Sato, Y. Takase, N. Tsujii, M. Uchida and T. Makekawa,
    Observation of High Impurity Ion Temperatures in ECW/EBW Sustained Plasmas on LATE,
    Plasma Fusion Res. 12, 1202041 (2017) (2017.10.16, 3 pages)
  • A. Ejiri, Y. Takase, N. Tsujii, H. Togashi, H. Furui, T. Shinya, B. Roidl, M. Sonehara, S. Yajima, Y. Yoshida, H. Yamazaki, A. Kitayama, A. Sato, Y. Takei, Y. Tajiri, N. Matsumoto and O. Mitarai,
    Pre-ionization by AC Ohmic coil operation in the TST-2 spherical tokamak,
    Nucl. Fusion 58, 016012 (2018) (Nov. 8, 2017, 17 pages)
  • R. Yoneda, K. Hanada, K. Nakamura, H. Idei, N. Yoshida, M. Hasegawa, T. Onchi, K. Kuroda, S. Kawasaki, A. Higashijima, T. Nagata, A. Isayama, O. Mitarai, A. Fukuyama, Y. Takase,
    Effect of Magnetic Structure on RF-induced Breakdown in QUEST,
    Phys. Plasmas 24, 062513 (2017). (2017.6.26, 10 pages) doi: 10.1063/1.4985142
  • Z. Wang, K. Hanada, N. Yoshida, T. Shimoji, M. Miyamoto, Y. Oya, H. Zushi, H. Idei, K. Nakamura, A. Fujisawa, Y. Nagashima, M. Hasegawa, S. Kawasaki, A. Higashijima, H Nakashima, K Nagata, A Kawaguchi, T Fujiwara, K Araki, O. Mitarai, A. Fukuyama, Y. Takase, K Matsumoto,
    Measurement of thickness of film deposited on the plasma-facing wall in the QUEST tokamak by colorimetry,
    Rev. Sci. Instrum. 88, 093502 (2017). (2017.9.5, 8 pages) doi: 10.1063/1.5000739
  • H. Idei, T. Kariya, T. Imai, K. Mishra, T. Onchi, O. Watanabe, H. Zushi, K. Hanada, J. Qian, A. Ejiri, M. Alam, K. Nakamura, A. Fujisawa, Y. Nagashima, M. Hasegawa, K. Matsuoka, A. Fukuyama, S. Kubo, T. Shimozuma, M. Yoshikawa, M. Sakamoto, S. Kawasaki, H. Nakashima, A. Higashijima, S. Ide, T. Maekawa, Y. Takase, K. Toi,
    Fully non-inductive second harmonic electron cyclotron plasma ramp-up in the QUEST spherical tokamak,
    Nucl. Fusion 57, 126045 (2017). (2017.10.5, 11 pages) doi: 10.1088/1741-4326/aa7c20
  • K. Hanada, N. Yoshida, T. Honda, Z. Wang, A. Kuzmin, I. Takagi, T. Hirata, Y. Oya, M. Miyamoto, H. Zushi, M. Hasegawa, K. Nakamura, A. Fujisawa, H. Idei, Y. Nagashima, O. Watanabe, T. Onchi, K. Kuroda, H. Long, H. Watanabe, K. Tokunaga, A. Higashijima, S. Kawasaki, T. Nagata, Y. Takase, A. Fukuyama, O. Mitarai,
    Investigation of hydrogen recycling in long-duration discharges and its control with a hot wall in the spherical tokomak QUEST,
    Nucl. Fusion 57, 126061 (2017). (2017.10.26, 10 pages) doi: 10.1088/1741-4326/aa8121
• 2016年度
  • H. Furui, A. Ejiri, Y. Nagashima, Y. Takase, M. Sonehara, N. Tsujii, T. Yamaguchi, T. Shinya, H. Togashi, H. Homma, K. Nakamura, T. Takeuchi, S. Yajima, Y. Yoshida, K. Toida, W. Takahashi1 and H. Yamazaki
    A model of plasma current through a hole of Rogowski probe including sheath effects
    Rev. Sci. Instrum. 87, 043503 (2016) (2016.4.1, 10 pages)
  • Yasuo YOSHIMURA, Yoshiro NARUSHIMA, Shin KUBO, Takashi SHIMOZUMA, Hiroe IGAMI, Hiromi TAKAHASHI, Toru I. TSUJIMURA, Ryohei MAKINO, Satoshi ITO, Kota OKADA, Sakuji KOBAYASHI, Yoshinori MIZUNO, Yuki GOTO, Ryuichi SAKAMOTO, Akira EJIRI, Takashi MUTOH, Hiroshi YAMADA, Akio KOMORI, Yasuhiko TAKEIRI and the LHD Experiment Group
    Improvement in Flexibility of ECCD by Upgraded ECH Antenna System on LHD
    Plasma and Fusion Res. 11, 2402036 (2016) (2016.4.15, 5 pages)
  • Santanu Banerjee, H. Zushi, N. Nishino, K. Mishra, Y. Mahira, S. Tashima, A. Ejiri, T. Yamaguchi, T. Onchi, Y. Nagashima, K. Hanada, K. Nakamura, H. Idei, M. Hasegawa, A. Fujisawa, A. Kuzmin and K. Matsuoka
    Observation of an edge coherent mode and poloidal flow in the electron cyclotron wave induced high βp plasma in QUEST
    Phys. Plasmas 23, 082507 (2016); http://dx.doi.org/10.1063/1.4960117 (2016.8.4, 8 Pages)
  • H. Tojo, I. Yamada, R. Yasuhara, A. Ejiri, J. Hiratsuka, H. Togashi, E. Yatsuka, T. Hatae, H. Funaba, H. Hayashi, Y. Takase and K. Itami
    Validations of calibration-free measurements of electron temperature using double-pass Thomson scattering diagnostics from theoretical and experimental aspects
    Rev. Sci. Instrum. 87, 093502 (2016) (2016.9.2, 11 Pages)
  • Takahiro Shinya, Seung Gyou Baek, Gregory M. Wallace, Syun’ichi Shiraiwa, Yuichi Takase, Ronald R. Parker, Paul T. Bonoli, Dan Brunner, Ian Faust, Brian L. LaBombard and Steve Wukitch
    Identification of waves in the lower-hybrid frequency range in the scrape-off layer plasma of Alcator C-Mod
    Nucl. Fusion, 57 036005 (2016) (2016.12.12, 4 Pages)
  • T. Shinya, Y. Takase, S. Yajima, C. Moeller, H. Yamazaki, N. Tsujii, Y. Yoshida, A. Ejiri, H. Togashi, K. Toida, H. Furui, H. Homma,
    K. Nakamura, B. Roidl, M. Sonehara, W. Takahashi and T. Takeuchi,
    Plasma current start-up experiments using outboard- and top-launch lower hybrid wave on the TST-2 spherical tokamak
    Nucl. Fusion, 57 036006 (2016) (2016.12.12, 8 Pages)
  • S. G. Baek, G. M. Wallace, T. Shinya, R. R. Parker, S. Shiraiwa, P. T. Bonoli, D. Brunner, I. Faust, B. L. LaBombard, Y. Takase, S. Wukitch,
    Measurements of the parallel wavenumber of lower hybrid waves in the scrape-off layer of a high-density tokamak,
    Phys. Plasmas 23, 050701 (2016). (2016.5.6, 5 pages) doi: 10.1063/1.4948555
  • K.Hanada, H.Zushi, H.Idei, K.Nakamura, M.Ishiguro, S.Tashima, E.I.Kalinnikova, Y.Nagashima, M.Hasegawa, A.Fujisawa, A.Higashijima, S.Kawasaki, H.Nakashima, O.Mitarai, T.Maekawa, A.Fukuyama, Y.Takase, X. Gao, H.Liu, J.Qian, M.Ono, R.Raman, M. Peng,
    Power balance estimation in long duration discharges on QUEST,
    Plasma Sci. Technol. 18, 1069 (2016). doi: 10.1088/1009-0630/18/11/03
  • M. Nishiura, Z. Yoshida, Y. Yano, Y. Kawazura, T. Mushiake, H. Saitoh, M. Yamasaki, A. Kashyao, N. Takahashi, M. Nakatsuka, Y. Takase, A. Fukuyama,
    Increase in Ion Temperature by Slow Wave Heating in Magnetosphere Plasma Device RT-1,
    Plasma Fusion Res. 11, 2402054 (2016). (2016.5.17, 5 pages) doi: 10.1585/pfr.11.2402054
• 2015年度
  • T. Wakatsuki, T. Suzuki, N. Hayashi, J. Shiraishi, S. Ide, Y. Takase,
    Simulation of plasma current ramp-up with reduced magnetic flux consumption in JT-60SA,
    Plasma Phys. Control. Fusion 57, 065005 (2015).(2015.4.10, 12 pages) doi:10.1088/0741-3335/57/6/065005
  • Shintaro TSUDA, Akira EJIRI, Hitoshi TANAKA, Yuichi TAKASE, Masaki UCHIDA, Takashi MAEKAWA, Naoto TSUJII and Toshihiro TAKEUCHI
    Measurement of Ion Temperature and Flow in RF Start-Up Plasmas in TST-2 and LATE
    Plasma Fusion Res. 10, 1202064 (2015) (3 pages Published on May 26, 2015).
  • Kishore Mishra, H. Zushi, H. Idei, M. Hasegawa, T. Onchi, S. Tashima, S. Banerjee, H. Hanada, H. Togashi, T. Yamaguchi, A. Ejiri, Y. Takase, K. Nakamura, A. Fujisawa, Y. Nagashima, A. Kuzmin and QUEST team
    Self organization of high βp plasma equilibrium with an inboard poloidal magnetic field null in QUEST
    Nucl. Fusion 55 (2015) 083009.(13 pages Published on July ?, 2015)
  • T. Shinya, Y. Takase, T. Wakatsuki, A. Ejiri, H. Furui, J. Hiratsuka, K. Imamura, T. Inada, H. Kakuda, H. Kasahara, R. Kumazawa, C. Moeller, T. Mutoh, Y. Nagashima, K. Nakamura, A. Nakanishi, T. Oosako, K. Saito, T. Seki, M. Sonehara, H. Togashi, S. Tsuda, N. Tsujii, T. Yamaguchi,
    Non-inductive Plasma Start-up Experiments on the TST-2 Spherical Tokamak Using Waves in the Lower-hybrid Frequency Range,
    Nucl. Fusion 55 (7), 073003 (2015).(2015.6.5, 8 pages) doi:10.1088/0029-5515/55/7/073003
  • N. Tsujii, M. Porkolab, P. T. Bonoli, E. M. Edlund, P. C. Ennever, Y. Lin, J. C. Wright, S. J. Wukitch, E. F. Jaeger, D. L. Green, and R. W. Harvey,
    Validation of full-wave simulations for mode conversion of waves in the ion cyclotron range of frequencies with phase contrast imaging in Alcator C-Mod,
    Phys. Plasmas 22, 082502 (2015). (2015.8.5, 9 pages) doi:10.1063/1.4927912
  • A. Ishida, A. Ejiri, Y. Takase, N. Tsujii, H. Togashi, Y. Yoshida, T. Sshinya and S. Tsuda
    Three-fluid axisymmetric equilibrium model and application to spherical torus plasmas sustained by RF electron heating
    Plasma Fusion Res. 10, 1403084 (2015). (2015,12.28, 9 pages)
  • H. Togashi, A. Ejiri, H. Homma, T. Shinya, Y. Takase, K. Toida, N. Tsujii, T. Yamaguchi, Y. Yoshida, M. Hasegawa, Y. Nagashima, H. Furui, K. Nakamura, W. Takahashi, T. Takeuchi, M. Sonehara, S. Yajima and H. Ymazaki
    First measurement of electron temperature and density profiles for　spherical tokamak plasmas sustained by lower hybrid wave
    Plasma Fusion Res. 10, 1202082 (2015) (2015,12.28, 2 pages)
  • T. Ii Tsujimura, S. Kubo, H. Takahashi, R. Makino, R. Seki, Y. Yoshimura, H. Igami, T. Shimozuma, K. Ida, C. Suzuki, M. Emoto, M. Yokoyama, T. Kobayashi, C. Moon, K. Nagaoka, M. Osakabe, S. Kobayashi, S. Ito, Y. Mizuno, K. Okada, A. Ejiri, T. Mutoh and the LHD Experiment Group
    Development and application of a ray-tracing code integrating with 3D equilibrium mapping in LHD ECH experiments
    Nuclear Fusion, 55, 123019 (2015). (2015. 11. 12, 12 pages) http://dx.doi.org/10.1088/0029-5515/55/12/123019
  • H. Togashi, A. Ejiri, H. Homma, T. Shinya, Y. Takase, K. Toida, N. Tsujii, T. Yamaguchi, Y. Yoshida, H. Furui, M. Sonehara, K. Nakamura, W. Takahashi, T. Takeuchi, S. Yajima, H. Yamazaki, M. Hasegawa, Y. Nagashima and H. Tojo
    Thomson scattering measurements in low-density plasmas in the TST-2 spherical tokamak
    JINST, 10, C12020 (2015) (2015.12.18, 9 pages)
  • A. Ejiri, T. Tokuzawa, N. Tsujii, K. Saito, T. Seki, H. Kasahara, S. Kamio, R. Seki, T. Mutoh, I. Yamada and Y. Takase
    Measurements of ICRF wave-induced density fluctuations in LHD by a microwave reflectometer
    JINST, 10, C12032 (2015) (2015.12.29, 10 pages)
  • Akira EJIRI, Yuichi TAKASE, Naoto TSUJII, Takahiro SHINYA, Satoru YAJIMA, Masateru SONEHARA, Hirokazu FURUI, Hiro TOGASHI, Hiroto HOMMA, Kenta NAKAMURA, Toshihiro TAKEUCHI, Yusuke YOSHIDA, Wataru TAKAHASHI, Kazuya TOIDA, and Hibiki YAMAZAKI
    RF central solenoid operation for plasma production and current drive in TST-2
    Plasma Fusion Res. 11, 1202004 (2016). (2016.2.10, 3 pages)
  2014年度
  • Identification of Waves by RF Magnetic Probes during Lower Hybrid Wave Injection Experiments on the TST-2 Spherical Tokamak
    Takahiro SHINYA, Akira EJIRI, Yuichi TAKASE, Takuma WAKATSUKI, Takuya OOSAKO, Naoto TSUJII, Hidetoshi KAKUDA, Hirokazu FURUI, Junichi HIRATSUKA, Takuma INADA, Kazuhiro IMAMURA, Keishun NAKAMURA, Ayaka NAKANISHI, Masateru SONEHARA, Hiro TOGASHI, Shintaro TSUDA, Takashi YAMAGUCHI, Hiroshi KASAHARA, Kenji SAITO, Tetsuo SEKI, Fujio SHIMPO, Yoshihiko NAGASHIMA, Osamu WATANABE and Takuma YAMADA,
    Plasma Fusion Res. 9, 3402040 (2014). (Published on 7 May 2014, 4 Pages)
  • Note: Multi-pass Thomson scattering measurement on the TST-2 spherical tokamak
    H. Togashi, A. Ejiri, J. Hiratsuka, K. Nakamura, Y. Takase, T. Yamaguchi, H. Furui, K. Imamura, T. Inada, H. Kakuda, A. Nakanishi, T. Oosako, T. Shinya, M. Sonehara, S. Tsuda, N. Tsujii, T. Wakatsuki, M. Hasegawa, Y. Nagashima, K. Narihara, I. Yamada and H. Toj
    Rev. Sci. Instrum. 85, 056103 (2014); http://dx.doi.org/10.1063/1.4878260. (Published on 20 May 2014, 3 Pages)
  • Development of a Local Current Diagnostic using a Small Rogowski Coil for a Spherical Tokamak Plasma in TST-2
    Hirokazu FURUI, Yoshihiko NAGASHIMA, Yuich TAKASE, Akira EJIRI, Hidetoshi KAKUDA, Masateru SONEHARA, Takuya OOSAKO, Naoto TSUJII, Junichi HIRATSUKA, Kazuhiro IMAMURA, Takuma INADA, Keishun NAKAMURA, Ayaka NAKANISHI, Takahiro SHINYA, Hiro TOGASHI, Shintarou TSUDA, Takuma WAKATSUKI and Takashi YAMAGUCHI
    Plasma Fusion Res. 9, 3402078 (2014) (Published on 10 Jun. 2014, 4 Pages)
  • S. G. Baek, R. R. Parker, S. Shiraiwa, G. M. Wallace, P. T. Bonoli, M. Porkolab, Y. Takase, D. Brunner, I. C. Faust, A. E. Hubbard, B. LaBombard, C. Lau,
    Characterization of the onset of ion cyclotron parametric decay instability of lower hybrid waves in a diverted tokamak,
    Phys. Plasmas 21 (6), 061511 (2014).(2014.6.24, 13 pages)doi: 10.1063/1.4884355
  • Local current density measurement using a Rogowski probe in Tokyo Spherical Tokamak
    H. Furui, Y. Nagashima, Y. Takase, A. Ejiri, H. Kakuda, M. Sonehara, T. Oosako, N. Tsujii, J. Hiratsuka, K. Imamura, T. Inada, K. Nakamura, A. Nakanishi, T. Shinya, H. Togashi, S. Tsuda, T. Wakatsuki and T. Yamaguchi
    Rev. Sci. Instrum. 85, 11D813 (2014) (Published on 16 Jul. 2014, 4 Pages); http://dx.doi.org/10.1063/1.4887277
  • Demonstration of improvement in the signal-to-noise ratio of Thomson scattering signal obtained by using a multi-pass optical cavity on the Tokyo Spherical Tokamak
    H. Togashi, A. Ejiri, J. Hiratsuka, K. Nakamura, Y. Takase, T. Yamaguchi, H. Furui, K. Imamura, T. Inada, H. Kakuda, A. Nakanishi, T. Oosako, T. Shinya, M. Sonehara, S. Tsuda, N. Tsujii, T. Wakatsuki, M. Hasegawa, Y. Nagashima, K. Narihara, I. Yamada and H. Tojo
    Rev. Sci. Instrum. 85, 11D846 (2014) (Publish on 13 Aug. 2014, 3 Pages); http://dx.doi.org/10.1063/1.4891707
  • Plasma current start-up experiments using a dielectric-loaded waveguide array antenna in the TST-2 spherical tokamak
    T. Wakatsuki, A. Ejiri, T. Shinya2, Y. Takase, H. Furui, J. Hiratsuka1, K. Imamura, T. Inada, H. Kakuda1, H. Kasahara, Y. Nagashima4, K. Nakamura, A. Nakanishi, T. Oosako, K. Saito, T. Seki, M. Sonehara1, H. Togashi, S. Tsuda, N. Tsujii and T. Yamaguchi
    Nucl. Fusion 54 093014 (2014) (14 pages, published on Aug. 19, 2014)
  • Plasma Density Suppression by Electron Cyclotron Wave in Lower Hybrid Wave Driven TST-2 Spherical Tokamak Plasma
    Takahiro SHINYA, Yuichi TAKASE, Charles P. MOELLER, Takuma WAKATSUKI, Takuma INADA, Takuya OOSAKO, Hidetoshi KAKUDA, Akira EJIRI, Naoto TSUJII, Hirokazu FURUI, Junichi HIRATSUKA, Kazuhiro IMAMURA, Keishun NAKAMURA, Ayaka NAKANISHI, Masateru SONEHARA, Hiro TOGASHI, Shintaro TSUDA and Takashi YAMAGUCHI
    Plasma Fusion Res. 9, 1202133 (2014) (2 pages Published on Sep. 17, 2014).
  • 男女共同参画推進委員会だより：第三回科学技術系専門職の男女共同参画実態調査から見える日本物理学会会員のワークライフバランス
    江尻晶
    日本物理学会誌 Vol. 69, 795-797 (2014) (3 pages Published on Nov. 2014)[in Japanese]
  • 講座：今日からはじめる磁場閉じこめ実験：４．楽しい実験は安全第一の精神から
    江尻晶
    J. Plasma Fusion Res. 90, 732-739 (2014) (8 pages published on Nov. 2014)[in Japanese]
  • 20 years of research on the Alcator C-Mod tokamak
    M. Greenwald, A. Bader, S. Baek, M. Bakhtiari, H. Barnard, W. Beck, W. Bergerson, I. Bespamyatnov, P. Bonoli, D. Brower, D. Brunner, W. Burke, J. Candy, M. Churchill, I. Cziegler, A. Diallo, A. Dominguez, B. Duval, E. Edlund, P. Ennever, D. Ernst, I. Faust, C. Fiore, T. Fredian, O. Garcia, C. Gao, J. Goetz, T. Golfinopoulos, R. Granetz, O. Grulke, Z. Hartwig, S. Horne, N. Howard, A. Hubbard, J. Hughes, I. Hutchinson, J. Irby, V. Izzo, C. Kessel, B. LaBombard, C. Lau, C. Li, Y. Lin, B. Lipschultz, A. Loarte, E. Marmar, A. Mazurenko, G. McCracken, R. McDermott, O. Meneghini, D. Mikkelsen, D. Mossessian, R. Mumgaard, J. Myra, E. Nelson-Melby, R. Ochoukov, G. Olynyk, R. Parker, S. Pitcher, Y. Podpaly, M. Porkolab, M. Reinke, J. Rice, W. Rowan, A. Schmidt, S. Scott, S. Shiraiwa, J. Sierchio, N. Smick, J. A. Snipes, P. Snyder, B. Sorbom, J. Stillerman, C. Sung, Y. Takase, V. Tang, J. Terry, D. Terry, C. Theiler, A. Tronchin-James, N. Tsujii, R. Vieira, J. Walk, G. Wallace, A. White, D. Whyte, J. Wilson, S. Wolfe, G. Wright, J. Wright, S. Wukitch, S. Zweben,
    Phys. Plasmas 21, 110501 (2014).  (2014.11.25, 50 pages)
  • Two-Fluid Equilibrium Considerations of Te/Ti ≫ 1, Collisionless ST Plasmas Sustained by RF Electron Heating
    Yueng-Kay Martin PENG, Akio ISHIDA, Yuichi TAKASE, Akira EJIRI, Naoto TSUJII, Takashi MAEKAWA, Masaki UCHIDA, Hideki ZUSHI, Kazuaki HANADA and Makoto HASEGAWA, Plasma Fusion Res. 9, 3403146 (2014) (6 pages Published on Dec. 17, 2014).
  • Simultaneous Measurement of Plasma Pressure Anisotropy with Double-Pass Thomson Scattering Diagnostic System on TST-2
    J. HIRATSUKA, A. EJIRI, M. HASEGAWA, Y. NAGASHIMA,K. NAKAMURA, Y. TAKASE, H. TOGASHI, H. TOJO, T. YAMAGUCHI and TST-2 groupPlasma Fusion Res. 10, 1402007 (2015) (6 pages Published on Feb.27, 2015).
  • Tokihiko TOKUZAWA, Shigeru INAGAKI, Akira EJIRI, Ryota SOGA, Ichihiro YAMADA, Shin KUBO, Mikiro YOSHINUMA, Katsumi IDA, Chihiro SUZUKI, Kenji TANAKA, Tsuyoshi AKIYAMA, Naohiro KASUYA, Kimitaka ITOH, Kiyomasa WATANABE, Hiroshi YAMADA, Kazuo KAWAHATA and LHD Experiment Group
    Ka-band Microwave Frequency Comb Doppler Reflectometer System for the Large Helical Device
    Plasma Fusion Res. 9, 1402149 (2014).
  • V.F. Shevchenko, Y.F. Baranov, T. Bigelow, J.B. Caughman, S. Diem, C. Dukes, P. Finburg, J. Hawes, C. Gurl, J. Griffiths, J. Mailloux, M. Peng, A.N. Saveliev, Y. Takase, H. Tanaka, G. Taylor,
    Long Pulse EBW Start-up Experiments in MAST,
    EPJ Web of Conferences 87, 02007 (2015). (2015.3.12, 6 pages) doi: 10.1051/epjconf/20158702007
  • K. Hanada, H. Zushi, N. Yoshida, N. Yugami, T. Honda, M. Hasegawa, K. K. Mishra, A. A. Kuzmin, K. Nakamura, A. Fujisawa, H. Idei, Y. Nagashima, O. Watanabe, T. Onchi, H. Watanabe, K. Tokunaga, A. Higashijima, S. Kawasaki, H. Nakashima, Y. Takase, A. Fukuyama, O. Mitarai, T. Maekawa, M. Peng,
    Particle balance in long duration RF driven plasmas on QUEST,
    J. Nucl. Mater. 463, 1084-1086 (2015). (2015.1.22, 3 pages) doi: 10.1016/j.jnucmat.2015.01.013
• 2013年度
  • Non-inductive plasma initiation and plasma current ramp-up on the TST-2 spherical tokamak
    Y. Takase, A. Ejiri, H. Kakuda, T. Oosako, T. Shinya, T.Wakatsuki, T. Ambo, H. Furui, T. Hashimoto,J. Hiratsuka, H. Kasahara, K. Kato, R. Kumazawa, C.P. Moeller, T. Mutoh, A. Nakanishi, Y. Nagashima, K. Saito, T. Sakamoto, T. Seki, M. Sonehara, R. Shino, H. Togashi, O. Watanabe and T. Yamaguchi
    Nucl. Fusion 53, 063006, 2013 (Published May. 8, 2013, 6 pages).
  • Characterization of Onset of Parametric Decay Instability of Lower Hybrid Waves
    S. G. Baek, P. T. Bonoli, R. R. Parker, S. Shiraiwa, G. M. Wallace, M. Porkolab, Y. Takase, D. Brunner, I. C. Faust, A. E. Hubbard, B. L. Labombard, C. Lau
    Radiofrequency Power in Plasmas (Proc. 20th Top. Conf., Sorrento, Italy, 2013)   (AIP, Melville, NY, 2014)  pp. 121-128.  doi: 10.1063/1.4864510
  • Results of Lower Hybrid Wave Experiments Using a Dielectric Loaded Waveguide Attay Antenna on TST-2
    T. Wakatsuki, A. Ejiri, T. Shinya, Y. Takase, H. Furui, J. Hiratsuka, K. Imamura, T. Inada, H. Kakuda, H. Kasahara, Y. Nagashima, K. Nakamura, A. Nakanishi, T. Oosako, K. Saito, T. Seki, F. Shimpo, M. Sonehara, H. Togashi, S. Tsuda, N. Tsujii, T. Yamaguchi
    Radiofrequency Power in Plasmas (Proc. 20th Top. Conf., Sorrento, Italy, 2013)   (AIP, Melville, NY, 2014)  pp. 422-425. doi: 10.1063/1.4864578
  • Characteristics of a Novel Lower Hybrid Wave Antenna for the TST-2 Spherical Tokamak
    Y. Takase, C. P. Moeller, T. Shinya, T. Wakatsuki, A. Ejiri, H. Furui, J. Hiratsuka, K. Imamura, T. Inada, H. Kakuda, K. Nakamura, A. Nakanishi, T. Oosako, M. Sonehara, H. Togashi, S. Tsuda, N. Tsujii, T. Yamaguchi
    Radiofrequency Power in Plasmas (Proc. 20th Top. Conf., Sorrento, Italy, 2013)   (AIP, Melville, NY, 2014)  pp. 462-465.  doi: 10.1063/1.4864588
  • Injection and Confinement of a Laser Pulse in an Optical Cavity for Multi-Pass Thomson Scattering Diagnostics in the TST-2 Spherical Tokamak Device
    Hiro TOGASHI, Akira EJIRI, Makoto HASEGAWA, Junichi HIRATSUKA, Yoshihiko NAGASHIMA, Keishun NAKAMURA, Kazumichi NARIHARA, Yuichi TAKASE, Hiroshi TOJO, Naoto TSUJII, Ichihiro YAMADA, Takashi YAMAGUCHI and the TST-2 Team,
    Plasma Fusion Res. 9, 1202005 (2014). (Published Jan. 31, 2014, 3 pages).
  • Measurement of Radio Frequency Wave Induced Electron Density Fluctuations by a Microwave Reflectometer on LHD
    A. Ejiri, T. Tokuzawa, K. Saito, T. Seki, H. Kasahara, T. Mutoh, R. Kumazawa, I. Yamada, Y. Takase
    JPS Conf. Proc. 1, 015038 (2014). (Publined Mar. 20, 2014, 4 pages).
  • Analysis of Office/Laboratory Staying Hour and Home Working Hour of Japanese Scientists and Engineers
    A. Ejiri
    JPS Conf. Proc. 1, 018004 (2014). (Published Mar. 20, 2014, 4 pages).
  2012年度
  • Demonstration of in-situ relative calibration method for a Thomson scattering diagnostic on TST-2
    H Tojo, A Ejiri, J Hiratsuka, T Yamaguchi, Y Takase, K Itami and T Hatae
    Journal of Instrumentation Volume 7 April 2012, Published Apr. 10, 2012
  • Non-inductive current start-up assisted by energetic electrons in Q-shu University experiment with steady-state spherical tokamak
    M. Ishiguro, K. Hanada, H. Liu, H. Zushi, K. Nakamura, A. Fujisawa, H. Idei, Y. Nagashima, M. Hasegawa, S. Tashima, Y. Takase, Y. Kishimoto, O. Mitarai, S. Kawasaki, H. Nakashima and A. Higashijima
    Phys. Plasmas 19, 062508 (2012). (2012.6.27, 11 pages) http://dx.doi.org/10.1063/1.4731700
  • Microwave Doppler reflectometer system in LHD
    T. Tokuzawa, A. Ejiri, K. Kawahata, K. Tanaka, I. Yamada, M. Yoshinuma, K. Ida, and C. Suzuki
    Rev. Sci. Instrum. 83, 10E322 (2012); http://dx.doi.org/10.1063/1.4733736 (3 pages) 13 July 2012
  • Off-Axis Temperature Anisotropy Measurement by Double-Pass Thomson Scattering Diagnostic System on TST-2
    Junichi HIRATSUKA, Akira EJIRI, Makoto HASEGAWA, Yoshihiko NAGASHIMA, Yuichi TAKASE, Hiroshi TOJO, Takashi YAMAGUCHI, Takanori AMBO, Hirokazu FURUI,Takahiro HASHIMOTO, Hidetoshi KAKUDA, Kunihiko KATO, Takuya OOSAKO, Takuya SAKAMOTO, Ryota SHINO, Takahiro SHINYA, Masateru SONEHARA, Takuma WAKATSUKI and Osamu WATANABE
    Plasma Fusion Res. 7, 2402092 (2012). (2012.7.26, 5 pages)
  • Fluctuation Measurement Across the Broad Range of the Low-field Side Edge Plasmas in the TST-2 Spherical Tokamak
    Masateru Sonehara, Yoshihiko Nagashima, Yuichi Takase, Akira Ejiri, Takashi Yamaguchi, Takanori Ambo, Hidetoshi Kakuda, Junichi Hiratsuka, Takuya Sakamoto, Ryota Shino, Takuma Wakatsuki, Osamu Watanabe
    IEEJ Transactions on Fundamentals and Materials, 132, 499 (2012). (2012. 7.1 No. 7, P499-504)
  • QUEST Experiments Towards Steady State Operation of Spherical Tokamaks
    K. Hanada, H. Zushi, H. Idei, K. Nakamura, M. Ishiguro, S. Tashima, E. Kalinnikova, M. Sakamoto, M. Hasegawa, A. Fujisawa, K. Sato, N. Yoshida, H. Watanabe, K. Tokunaga, Y. Nagashima, A. Higashijima, S. Kawasaki, H. Nakashima, H. Liu, O. Mitarai, T. Maekawa, A. Fukuyama, Y. Takase, J. Qian
    IEEJ Transactions on Fundamentals and Materials, 132, 490 (2012). (2012. 7.1 No. 7, P490-498)
  • X-ray Measurements during Plasma Current Start-up Experiments using the Lower Hybrid Wave on the TST-2 Spherical Tokamak
    Takuma Wakatsuki, Akira Ejiri, Hidetoshi Kakuda, Yuichi Takase, Takanori Ambo, Hirokazu Furui, Takahiro Hashimoto, Junichi Hiratsuka, Hiroshi Kasahara, Kunihiko Kato, Ryuhei Kumazawa, Yoshihiko Nagashima, Kenji Saito, Takuya Sakamoto, Tetsuo Seki, Fujio Shimpo, Ryota Shino, Takahiro Shinya, Masateru Sonehara, Osamu Watanabe, Takashi Yamaguchi, Charles P. Moeller
    IEEJ Transactions on Fundamentals and Materials, 132 485 (2012). (2012.7.1 No. 7, P485-489)
  • Development of Multi-channel Doppler Spectroscopic Measurement System Using 8x8 Multianode Photomultiplier Tube Assembly
    S. Kamio, K. Yamasaki, K. Takemura, Q. H. Cao, T. G. Watanabe, H. Itagaki, T. Tsutsui, K. Ishiguchi, R. Imazawa, T. Yamada, C. Z. Cheng, M. Inomoto, Y. Takase, Y. Ono
    Rev. Sci. Instrum. 83, 083103 (2012) http://dx.doi.org/10.1063/1.4739774 (4 pages) (published online 6 August 2012)
  • Hiroshi IDEI, Hideki ZUSHI, Kazuaki HANADA, Evgeniya KALINNIKOVA, Kazuo NAKAMURA, Akihide FUJISAWA, Yoshihiko NAGASHIMA, Makoto HASEGAWA, Keisuke MATSUOKA, Tsuyoshi KARIYA, Tsuyoshi IMAI, Ryutaro MINAMI, Naoaki YOSHIDA, Mizuki SAKAMOTO, Hideo WATANABE, Kazutoshi TOKUNAGA, Akira EJIRI, Masatsugu SAKAGUCHI, Masaki ISHIGURO, Saya TASHIMA, Atsushi FUKUYAMA, Hiroe IGAMI, Shin KUBO, Mitsutaka ISOBE, Kenichi NAGAOKA, Hideya NAKANISHI, Nobuhiro NISHINO, Shoji KAWASAKI, Hisatoshi NAKASHIMA, Aki HIGASHIJIMA, Yuichi TAKASE, Takashi MAEKAWA, Osamu MITARAI, Mitsuru KIKUCHI and Kazuo TOI
    ECW/EBW Heating and Current Drive Experiment Results and Prospects for CW Operation in QUEST
    Plasma Fusion Res. 7, 2402112 (2012). (7 Pages, Published on Sep. 13, 2012)
  • Electron Acceleration by Magnetic Reconnection During Spherical Tokamak Merging Experiment
    S. Kamio, K. Yamasaki, K. Takemura, Q. H. Cao, T. G. Watanabe, H. Itagaki, T. Tsutsui, K. Ishiguchi, R. Imazawa, T. Yamada, C. Z. Cheng, M. Inomoto, Y. Takase, Y. Ono
    電気学会基礎・材料・共通部門大会講演論文集(CD-ROM) 巻：2012 ページ：ROMBUNNO.XVII-12 （発行年：2012年09月20日）
  • JT-60SAリサーチプラン
    プラズマ・核融合学会誌（研究最前線）
    M. Yoshida, G. Giruzzi, Y. Kamada, Y. Takase, T. Suzuki, K. Nagasaki, G. Matsunaga, M. Furukawa, K. Tanaka, K. Shinohara, M. Osakabe, H. Urano, T. Morisaki, T. Nakano, M. Sakamoto, S. Sakurai, A. Sagara, N. Hayashi, A. Fukuyama
    J. Plasma Fusion Res. 88 (11), 650-680 (2012)
  • 球状トカマク研究の進展　－核融合エネルギー開発に向けて－
    プラズマ・核融合学会誌（小特集）
    T. Maekawa, Y. Takase, K. Hanada, N. Yoshida, M. Nagata, Y. Ono, M. Inomoto, Y. Nagashima, Y. Nagayama,
    J. Plasma Fusion Res. 88 (12), 706-760 (2012).
  • Electron Temperature Measurement on QUEST Spherical Tokamak by Thomson Scattering System
    Takashi YAMAGUCHI, Akira EJIRI, Junichi HIRATSUKA, Makoto HASEGAWA, Yoshihiko NAGASHIMA, Kazumichi NARIHARA, Yuichi TAKASE, Hideki ZUSHI and the QUEST group
    Plasma Fusion Res. 8, 1302001 (2013). (4 Pages, Published on 13 Feb. 2013)
• 2011年度
  • Development of a plasma current ramp-up technique for spherical tokamaks by the lower hybrid wave
    Y. Takase, A. Ejiri, H. Kakuda, Y. Nagashima, T. Wakatsuki, O. Watanabe, P. Bonoli, O. Meneghini, S. Shiraiwa, J Wright, C. Moeller, H. Kasahara, R. Kumazawa, T. Mutoh, K. Saito and TST-2 Group
    Nucl. Fusion, 51, 063017 (2011). (2011.5.13, 8 pages)
  • Development of a Double-pass Thomson Scattering System in the TST-2 Spherical Tokamak
    Junichi HIRATSUKA, Akira EJIRI, Makoto HASEGAWA, Yoshihiko NAGASHIMA, Yuichi TAKASE, Hiroshi TOJO, Takashi YAMAGUCHI, Takanori AMBO, Hidetoshi KAKUDA, Takuya SAKAMOTO, Ryota SHINO, Masateru SONEHARA, Takuma WAKATSUKI and Osamu WATANABE
    Plasma Fusion Res. 6, 1202133 (2011). (2011.9.16, 3 pages)
  • LH transition and pedestal studies on MAST
    H. Meyer, M.F.M. De Bock, N.J. Conway, S.J. Freethy, K. Gibson, J. Hiratsuka, A. Kirk, C.A. Michael, T. Morgan, R. Scannell, G. Naylor, S. Saarelma, A.N. Saveliev, V.F. Shevchenko, W. Suttrop, D. Temple, R.G.L. Vann and the MAST and NBI teams
    Nucl. Fusion 51 113011 (2011).
  • M. Ishiguro, K. Hanada, H. Liu, H. Zushi, N. Yoshida, T. Tokunaga, K. Nakamura, A. Fujisawa, H. Idei, M. Sakamoto, M. Hasegawa, S. Tashima, Y. Takase, T. Maekawa, Y. Kishimoto,
    Direct measurement of energetic electron flow in Q-shu University experiment with steady-state spherical tokamak,
    Rev. Sci. Instrum. 82, 113509 (2011). (2011.11.21, 6 pages)
  • S. Kamio, Q. Cao, K. Abe, M. Sakumura, N. Suzuki, T. Watanabe, K. Ishiguchi, R. Imazawa, T. Yamada, M. Inomoto, Y. Takase, Y. Ono,
    Multipoint Spectroscopy Measurement of Spherical Tokamak Heating by Magnetic Reconnection in UTST,
    Plasma Fusion Res. 6, 2402033 (2011). (2011.7.12, 4 pages)
  • Y. Nagashima, A. Ejiri, Y. Takase, M. Sonehara, H. Kakuda, T. Oosako, J. Hiratsuka, O. Watanabe, T. Yamaguchi, H. Kobayashi, T. Wakatsuki, T. Sakamoto, K. Hanashima, T. Ambo, R. Shino, S. Inagaki,
    Evaluation of edge electron temperature fluctuation by the use of fast voltage scanning method on TST-2,
    Plasma Fusion Res. 6, 2402036 (2011). (2011.7.1, 5 pages)
  • Y. Nagashima, S.-I. Itoh, S. Inagaki, H. Arakawa, N. Kasuya, A. Fujisawa, K. Kamataki, T. Yamada, S. Shinohara, S. Oldenbu¨rger, M. Yagi, Y. Takase, P. H. Diamond, K. Itoh,
    Non-Gaussian properties of global momentum and particle fluxes in a cylindrical laboratory plasma,
    Phys. Plasmas 18, 070701 (2011). (2011.7.1, 4 pages)
  • M. Uchida, T. Maekawa, H. Tanaka, S. Ide, Y. Takase, F. Watanabe, S. Nishi,
    Generation of initial closed flux surfaces by ECH at a conventional aspect ratio of R/a ~ 3: experiments on the LATE device and JT-60U tokamak,
    Nucl. Fusion 51 063031 (2011). (2011.5.13, 8 pages)
  • D. Moreau, D. Mazon, M.L.Walker, J.R. Ferron, K.H. Burrell, S.M. Flanagan, P. Gohil, R.J. Groebner, A.W. Hyatt, R.J. La Haye, J. Lohr, F. Turco, E. Schuster, Y. Ou, C. Xu, Y. Takase, Y. Sakamoto, S. Ide, T. Suzuki, ITPA-IOS group members and experts,
    Plasma models for real-time control of advanced tokamak scenarios,
    Nucl. Fusion 51, 063009 (2011). (2011.5.10, 14 pages) .
  • H. Tojo, A. Ejiri, J. Hiratsuka, T. Yamaguchi, Y. Takase, K. Itami1, and T. Hatae1
    First measurement of electron temperature from signal ratios in a double-pass Thomson scattering system,
    Rev. Sci. Instrum. 83, 023507 (2012). (2012.2.22, 4 pages)
• 2010年度
  • Direct Measurements of High Harmonic Fast Wave Profile in the UTST Spherical Tokamak Plasma
    Takuma WAKATSUKI, Yoshihiko NAGASHIMA, Takuya OOSAKO, Hiroaki KOBAYASHI, Byung Il AN, Hidetoshi KAKUDA, Takuma YAMADA, Ryota IMAZAWA, Osamu WATANABE, Takashi YAMAGUCHI, Hiroki KURASHINA, Hiroyuki HAYASHI, Kotaro YAMADA, Takuya SAKAMOTO, Kentaro HANASHIMA, Junichi HIRATSUKA, Shuji KAMIO, Ryuma HIHARA, Keita ABE, Morio SAKUMURA, Qinghong CAO, Michiaki INOMOTO, Yasushi ONO, Akira EJIRI and Yuichi TAKASE
    Plasma Fusion Res. 5, 018 (2010)
  • Observation of Edge Reynolds Stress Increase Preceding an L-H Transition in Compact Helical System
    Yoshihiko NAGASHIMA, Kenichi NAGAOKA, Kimitaka ITOH, Akihide FUJISAWA, Mitsutaka ISOBE, Tsuyoshi AKIYAMA, Chihiro SUZUKI, Shin NISHIMURA, Yasuo YOSHIMURA, Keisuke MATSUOKA, Shoichi OKAMURA, Yuichi TAKASE, Akira EJIRI, Sanae -I. ITOH, Masatoshi YAGI and CHS Group,
    Plasma Fusion Res. 5, 022 (2010)
  • Steady-State Operation Scenario and the First Experimental Result on QUEST
    Kazuaki HANADA, Kohnosuke SATO, Hideki ZUSHI, Kazuo NAKAMURA, Mizuki SAKAMOTO, Hiroshi IDEI, Makoto HASEGAWA, Yuichi TAKASE, Osamu MITARAI, Takashi MAEKAWA, Yasuaki KISHIMOTO, Masaki ISHIGURO, Tomokazu YOSHINAGA, Hiroe IGAMI, Nobuhiro NISHINO, Hiroshi HONMA, Shoji KAWASAKI, Hisatoshi NAKASHIMA, Aki HIGASHIJIMA, Yuta HIGASHIZONO, Akira ANDO, Nobuyuki ASAKURA, Akira EJIRI, Yoshihiko HIROOKA, Akio ISHIDA, Akio KOMORI, Makoto MATSUKAWA, Osamu MOTOJIMA, Yuichi OGAWA, Noriyasu OHNO, Yasushi ONO, Martin PENG, Shigeru SUDO, Hiroshi YAMADA, Naoaki YOSHIDA and Zensho YOSHIDA,
    Plasma Fusion Res. 5, S1007 (2010).
  • Observation of Beat Oscillation Generation by Coupled Waves Associated with Parametric Decay during Radio Frequency Wave Heating of a Spherical Tokamak Plasma
    Yoshihiko Nagashima, Takuya Oosako, Yuichi Takase, Akira Ejiri, Osamu Watanabe, Hiroaki Kobayashi, Yuuki Adachi, Hiroshi Tojo, Takashi Yamaguchi, Hiroki Kurashina, Kotaro Yamada, Byung Il An, Hiroshi Kasahara, Fujio Shimpo, Ryuhei Kumazawa, Hiroyuki Hayashi1, Haduki Matsuzawa, Junichi Hiratsuka, Kentaro Hanashima1, Hidetoshi Kakuda, Takuya Sakamoto, and Takuma Wakatsuki
    Phys. Rev. Lett. 104, 245002 (2010)
  • Evaluation of Edge Electron Temperature Fluctuations Using a Conditional Technique on TST-2
    Jun'ichi OZAKI, Masateru SONEHARA, Yoshihiko NAGASHIMA, Yuichi TAKASE, Akira EJIRI, Kotaro YAMADA, Hidetoshi KAKUDA, Shigeru INAGAKI, Takuya OOSAKO, Byung Il AN, Hiroyuki HAYASHI, Kentaro HANASHIMA, Junichi HIRATSUKA, Hiroaki KOBAYASHI, Hiroki KURASHINA, Takuya SAKAMOTO, Takashi YAMAGUCHI, Osamu WATANABE and Takuma WAKATSUKI
    Plasma Fusion Res. 5, 023 (2010)
  • Electron Density Measurements of Non-Inductive Start-Up Plasmas in the TST-2 Spherical Tokamak
    Hiroki KURASHINA, Akira EJIRI, Yuichi TAKASE, Kentaro HANASHIMA, Takuya SAKAMOTO, Osamu WATANABE, Yoshihiko NAGASHIMA, Takashi YAMAGUCHI, Byung Il AN, Hiroaki KOBAYASHI, Hiroyuki HAYASHI, Kotaro YAMADA, Hazuki MATSUZAWA, Hidetoshi KAKUDA, Junichi HIRATSUKA, Takuma WAKATSUKI and Takuya OOSAKO
    Plasma Fusion Res. 5, 024 (2010)
  • Feasibility of a Multi-Pass Thomson Scattering System with Confocal Spherical Mirrors
    Junichi HIRATSUKA, Akira EJIRI, Yuichi TAKASE and Takashi YAMAGUCHI
    Plasma Fusion Res. 5, 044 (2010)
  • Osamu WATANABE, Akira EJIRI, Hiroki KURASHINA, Takuya OHSAKO, Yoshihiko NAGASHIMA, Takashi YAMAGUCHI, Takuya SAKAMOTO, Byung Il AN, Hiroyuki HAYASHI, Hiroaki KOBAYASHI, Kotaro YAMADA, Hidetoshi KAKUDA, Junichi HIRATSUKA, Kentaro HANASHIMA, Takuma WAKATSUKI and Yuichi TAKASE,
    Comparison of Hydrogen and Deuterium Plasmas in ECH Start-Up Experiment in the TST-2 Spherical Tokamak
    Plasma Fusion Res. 5, S2032 (2010).
  • Fluctuation measurement in the edge plasma on TST-2
    Yoshihiko NAGASHIMA, Jun’ichi OZAKI, Masateru SONEHARA, Yuichi TAKASE, Akira EJIRI, Kotaro YAMADA, Hidetoshi KAKUDA, Shigeru INAGAKI,　Takuya OOSAKO,　Byung Il AN1, Hiroyuki HAYASHI, Kentaro HANASHIMA, Junichi HIRATSUKA,　Hiroaki KOBAYASHI, Hiroki KURASHINA, Hazuki MATSUZAWA, Takuya SAKAMOTO,　Takashi YAMAGUCHI, Osamu WATANABE and Takuma WAKATSUKI
    Plasma Fusion Res. 5, S2049 (2010).
  • Masaki SUGIHARA, Kensuke OKI, Ryuya IKEZOE, Takumi ONCHI, Akio SANPEI, Haruhiko HIMURA, Sadao MASAMUNE, Tsuyoshi AKIYAMA, Akira EJIRI, Keishi SAKAMOTO, Kazunobu NAGASAKI and Vladimir ZHURAVLEV
    Density Regimes of Low-Aspect-Ratio RFP Plasmas in RELAX
    Plasma Fusion Res. 5, S2061 (2010).
  • Development of a Thomson scattering system in the TST-2 spherical tokamak
    T. Yamaguchi, A. Ejiri, J. Hiratsuka, Y. Takase, Y. Nagashima, O. Watanabe, T. Sakamoto, T. Oosako, B. I. An, H. Kurashina, H. Kobayashi, H. Hayashi, H. Matsuzawa, K. Yamada, H. Kakuda, K. Hanashima, T. Wakatsuki
    Plasma Fusion Res. 5, S2092 (2010).
  • Development of a bright polychromator for Thomson scattering measurements
    A. Ejiri, T. Yamaguchi, J. Hiratsuka, Y. Takase, M. Hasegawa and K. Narihara
    Plasma Fusion Res. 5, S2082 (2010).
  • Merging start-up experiments on the UTST spherical tokamak
    Takuma YAMADA, Ryota IMAZAWA, Shuji KAMIO, Ryuma HIHARA, Keita ABE,Morio SAKUMURA, Qinghong CAO, Takuya OOSAKO, Hiroaki KOBAYASHI, Takuma WAKATSUKI, Byungil AN, Yoshihiko NAGASHIMA, Hajime SAKAKITA, Haruhisa KOGUCHI, Satoru KIYAMA, Yoichi HIRANO, Michiaki INOMOTO, Akira EJIRI, Yuichi TAKASE and Yasushi ONO
    Plasma Fusion Res. 5, S2100 (2010).
  • Takuma YAMADA, Sanae-I. ITOH, Shigeru INAGAKI, Yoshihiko NAGASHIMA, Shunjiro SHINOHARA, Naohiro KASUYA, Kenichiro TERASAKA, Kunihiro KAMATAKI, Hiroyuki ARAKAWA, Masatoshi YAGI, Akihide FUJISAWA and Kimitaka ITOH
    Nonlinear Mode Couplings in a Cylindrical Magnetized Plasma
    Plasma Fusion Res. 5, S2016 (2010)
  • Hiroyuki ARAKAWA, Shigeru INAGAKI, Yoshihiko NAGASHIMA, Takuma YAMADA, Kunihiro KAMATAKI, Tatsuya KOBAYASHI, Satoru SUGITA, Masatoshi YAGI, Naohiro KASUYA, Akihide FUJISAWA, Sanae -I. ITOH and Kimitaka ITOH
    Probability Density Function of Density Fluctuations in Cylindrical Helicon Plasmas
    Plasma Fusion Res. 5, S2044 (2010).
  • Kunihiro KAMATAKI, Sanae-I. ITOH, Shigeru INAGAKI, Hiroyuki ARAKAWA, Yoshihiko NAGASHIMA, Takuma YAMADA, Masatoshi YAGI, Akihide FUJISAWA and Kimitaka ITOH
    ECRH Superposition on Linear Cylindrical Helicon Plasma in the LMD-U
    Plasma Fusion Res. 5, S2046 (2010).
  • Tatsuya KOBAYASHI, Shigeru INAGAKI, Hiroyuki ARAKAWA, Kunihiro KAMATAKI, Yoshihiko NAGASHIMA, Takuma YAMADA, Satoru SUGITA, Masatoshi YAGI, Naohiro KASUYA, Akihide FUJISAWA, Sanae -I. ITOH and Kimitaka ITOH
    Bispectral Analysis of Density and Potential Fluctuations in a High Neutral Density Cylindrical Plasma
    Plasma Fusion Res. 5, S2047 (2010).
  • Masaki ISHIGURO, Kazuaki HANADA, Kazuo NAKAMURA, Osamu MITARAI, Hideki ZUSHI, Hiroshi IDEI, Mizuki SAKAMOTO, Makoto HASEGAWA, Yuta HIGASHIZONO, Yuichi TAKASE, Takashi MAEKAWA, Yasuaki KISHIMOTO, Shoji KAWASAKI, Hisatoshi NAKASHIMA and Aki HIGASHIJIMA
    Reconstruction of Vacuum Magnetic Flux in QUEST
    Plasma Fusion Res. 5, S2083 (2010).
  • Y. Nagashima, S. Inagaki, K. Kamakaki, H. Arakawa, T. Yamada, S. Shinohara, Y. Kawai, M. Yagi, A. Fujisawa, S. Itoh, K. Itoh, Y.Takase,
    Development of radially movable multi-channel Reynolds stress probe system for a cylindrical laboratory plasma,
    Rev. Sci. Instrum. 82, 033503 (2011).
  • O. Mitarai, K. Nakamura, S. Tashima, M. Hasegawa, H. Idei, M. Sakamoto, K. Hanada, H. Zushi, K. Sato, M. Ishiguro, H. Q. Liu, Y. Higashizono, A. Higashijima, H. Nakashima, S. Kawasaki, Y. Takase, T. Maekawa, N. Nishino,
    First Ohmic Discharge Assisted with RF Power in QUEST Spherical Tokamak,
    Plasma Fusion Res. 6, 1402003 (2011). (2011.2.8 9 pages)
  • S.K. Sharma, H. Zushi, I. Takagi, Y. Hisano, M. Sakamoto, Y. Higashizono, T. Shikama, S. Morita, T. Tanabe, N. Yoshida, K. Hanada, M. Hasegawa, O. Mitarai, K. Nakamura, H. Idei, K.N. Sato, S. Kawasaki, H. Nakashima, A. Higashijima, Y. Nakashima, N. Nishino, Y. Hatano, A. Sagara, Y. Nakamura, N. Ashikawa, T. Maekawa, Y. Kishimoto, Y. Takase, QUEST Group,
    Measurement of hydrogen permeation due to atomic flux using permeation probe in the spherical tokamak QUEST
    Fusion Engineering and Design 85 (6) 950-955 (2010). (2010.9.15, 6 pages).
• 2009年度
  • Transient excitation of zonal flows by geodesic acoustic modes
    M. Sasaki, K. Itoh, A. Ejiri and Y. Takase
    Plasma Phys. Control. Fusion 51 085002 (2001).
  • Boundary of the geodesic acoustic eigenmode in the vicinity of the magnetic separatrix
    Y Nagashima1, K Itoh, A Fujisawa, K Shinohara, S-I Itoh, T Ido, M Yagi, K Hoshino, A Ejiri, Y Takase, K Uehara and Y Miura
    Plasma Phys. Contr. Fusion, 51, 065019 (2009)
  • Non-inductive plasma current start-up by EC and RF power in the TST-2 spherical tokamak
    A. Ejiri, Y. Takase, T. Oosako, T. Yamaguchi, Y. Adachi, O. Watanabe, Y. Nagashima, B.I. An, H. Kobayashi, H. Kurashina, H. Hayashi, H. Matsuzawa, K. Yamada, H. Tojo, T. Masuda, M. Sasaki, R. Kumazawa, H. Kasahara and F. Shimpo
    Nucl. Fusion, 49, 065010 (2009)
  • Parametric decay instability during high harmonic fast wave heating experiments on the TST-2 spherical tokamak
    T. Oosako, Y. Takase, A. Ejiri, Y. Nagashima, Y. Adachi, H. Kasahara, T. Yamada, O. Watanabe, H. Tojo, S. Kainaga, J. Sugiyama, T. Yamaguchi, B. An, H. Hayashi, H. Kobayashi, H. Kurashina, H. Matsuzawa, K. Yamada, R. Kumazawa, F. Shimpo, Y. Ono, T. Masuda and M. Sasaki
    Nucl. Fusion, 49, 065020 (2009).
  • Phase Alignments between MHD Modes Followed by Minor Collapses on TST-2
    H. TOJO, A. EJIRI, Y. TAKASE, Y. NAGASHIMA, O. WATANABE, Y. ADACHI, T. OOSAKO, T. YAMAGUCHI, B.Il AN, H. KOBAYASHI, H. KURASHINA, H. MATSUZAWA, K. YAMADA, M. SASAKI and T. MASUDA
    Plasma Fusion Res. 4, 015 (2009).
  • Calculation of Beam Trajectories of a Heavy Ion Beam Probe Diagnostic in the TST-2 Spherical Tokamak
    Y. Nagashima, A. Ejiri, A. Fujisawa, and Y. Takase
    IEEJ Trans. FM, Vol.129, No.9, pp.575-579
  • Poloidal eigenmode of the geodesic acoustic mode in the limit of high safety factor
    M. SASAKI, K. ITOH , A. EJIRI and Y. TAKASE
    J. Plasma Phys. 75, No.6, 721(2009).
• 2008年度
  • The Response of microwave reflectometry under generalized configuration
    A Ejiri, T Yamada, Y Adachi, O Watanabe and Y Takase
    Plasma Phys. Contr. Fusion 50 No. 6, 065003 (2008)
  • Electron Cyclotron Heating Start-Up Experiments on TST-2
    Junichi SUGIYAMA, Akira EJIRI, Yuichi TAKASE, Osamu WATANABE, Yuuki ADACHI,Hiroshi TOJO, Makoto SASAKI, Tetsuya MASUDA, Takuya OOSAKO and Soichiro KAINAGA
    Plasma Fusion Res. 3, 026 (2008).
  • Development of a Compact Thomson Scattering System for the TST-2 Spherical Tokamak
    Soichiro KAINAGA, Akira EJIRI, Yuichi TAKASE, OsamuWATANABE, Yuuki ADACHI, Takuya OOSAKO, Makoto SASAKI, Hiroshi TOJO, Tetsuya MASUDA, Junichi SUGIYAMA and Takashi YAMAGUCHI
    Plasma Fusion Res. 3, 027 (2008).
  • Temporal Evolution of the Pressure Profile and Mode Behavior during Internal Reconnection Events in the MAST Spherical Tokamak
    Hiroshi TOJO, Mikhall P. GRYAZNEVICH, Akira Ejiri, Alan SYKES and Yuichi TAKASE,
    Plasma Fusion Res. 3, S1065 (2008).
  • Geodesic Acoustic Modes in Multi-Ion System
    Makoto SASAKI, Kimitaka ITOH, Akira EJIRI and Yuichi TAKASE,
    Plasma Fusion Res. 3, S1017 (2008).
  • Observation of the Internal Structure of Energetic Particle-Driven MHD Modes in a Large Helical Device
    Tokihiko TOKUZAWA, Akira EJIRI, Kazuo KAWAHATA and LHD Experimental Group,
    Plasma Fusion Res. 3, S1064 (2008).
  • Plasma Current Sustainment by RF Power in ECH Start-up Plasma in the TST-2 Spherical Tokamak
    Osamu WATANABE, Akira EJIRI, Takashi YAMAGUCHI, Junichi SUGIYAMA, Takuya OOSAKO, Yuuki ADACHI, Kotaro YAMADA, Hiroshi TOJO, Soichiro KAINAGA, Yuichi TAKASE, Yoshihiko NAGASHIMA, Makoto SASAKI and Tetsuya MASUDA,
    Plasma Fusion Res. 3, 049 (2008).
  • Coexistence of Zonal Flows and Drift-Waves in a Cylindrical Magnetized Plasma
    Y. Nagashima, S. -I. Itoh, et al.,
    J. Phys. Soc. Jpn. 77 114501 (2008).
  • Nonlinear energy transfer of drift-wave fluctuation in a cylindrical laboratory plasma
    Y. NAGASHIMA, S.-I. ITOH, et al.,
    Plasma Fusion Res. 3, 056 (2008).
  • Detection of a new parametric decay instability branch in TST-2 during high harmonic fast wave heating
    Y. Adachi, A. Ejiri, Y. Takase, O. Watanabe, T. Oosako, H. Tojo, S. Kainaga, T. Masuda, M. Sasaki, J. Sugiyama, and T. Yamaguchi
    Rev. Sci. Instrum. 79, 10F507 (2008).
  • Poloidal mode analysis of magnetic probe data in a spherical tokamak configuration
    H. Tojo, A. Ejiri, M. P. Gryaznevich, Y. Takase, and Y. Adachi
    Rev. Sci. Instrum. 79, 10F120 (2008).
  • V-band frequency hopping microwave reflectometer in LHD
    T. Tokuzawa, A. Ejiri, K. Kawahata, K. Tanaka and Y. Ito
    Rev. Sci. Instrum, 79, 10F109 (2008).
  • Nonlinear self-interaction of geodesic acoustic modes in toroidal plasmas
    M. Sasaki, K. Itoh, Y. Nagashima, A. Ejiri, and Y. Takase
    Phys. Plasmas 16, 022306 (2009).
  • Observation of the parametric-modulational instability between the drift-wave fluctuation and azimuthally symmetric sheared radial electric field oscillation in a cylindrical laboratory plasma
    Y. Nagashima, S-I. Itoh, S. Shinohara, M. Fukao, A. Fujisawa, K. Terasaka,2 Y. Kawai, G. R. Tynan, P. H. Diamond, M. Yagi, S. Inagaki, T. Yamada, and K. Itohi
    Phys. Plasmas Vol.16, No.2, 020706 (2009).
• 2007年度
  • Radial Eigenmodes of Geodesic Acoustic Modes
    M. Sasaki, K. Itoh, A. Ejiri and Y. Takase,
    Contrib. Plasma Phys. 48, No. 1-3, 68-72 (2008)
  • Modification of Symmetry of Poloidal Eigenmode of Geodesic Acoustic Modes
    M. SASAKI, K. ITOH, A. EJIRI and Y. TAKASE,
    Plasma Fusion Res. 3, 009(2008).
  • プロジェクトレビュー」高速イオン励起MHD不安定性とそれらによる高速イオン輸送
    東井和夫、武智学、大舘暁、榊原悟、庄司多津男、徳沢季彦、江尻晶
    J. Plasma Fusion Res. 83, 1000-1003, Dec. 2007 [in Japanese]
  • Reflectometry for Density Fluctuation and Profile Measurements in TST-2
    Takuma YAMADA, Akira EJIRI, Yoshiyuki SHIMADA, Takuya OOSAKO, Jiro TSUJIMURA, Yuichi TAKASE, Yuuki TORII, Makoto SASAKI, Hiroshi TOJO, Tetsuya MASUDA, Hideo NUGA, Nobuyuki SUMITOMO, Soichiro KAINAGA and Junichi SUGIYAMA,
    Plasma Fusion Res. 2, S1037 (2007).
  • Soft X-ray Emission Profile and Mode Structure During MHD Events in the TST-2 Spherical Tokamak
    H. TOJO, A. EJIRI, Y. TAKASE, Y. TORII, T. OSAKO, M. SASAKI, T. MASUDA, Y. SHIMADA, N. SUMITOMO, J. TSUJIMURA, H. NUGA, S. KAINAGA and J. SUGIYAMA
    Plasma Fusion Res. 2, S1065 (2007).
  • Relative Frequency Calibration for Fast Frequency Sweep Microwave Reflectometry
    A. EJIRI, Y. SHIMADA, T. YAMADA, T. OOSAKO, Y. TAKASE and H. KASAHARA
    Plasma Fusion Research 2, 040(2007).
  • In search of zonal flows by using direct density fluctuation measurements
    Y Nagashima, K Itoh, S-I Itoh, A Fujisawa, M Yagi, K Hoshino, K Shinohara, A Ejiri, Y Takase, T Ido, K Uehara, Y Miura and the JFT-2M group
    Plasma Phys. Control. Fusion 49 1611-1625 (2007).
  • 炉心プラズマの定常化に向けたトーラスプラズマ開発の現状と展望
    高瀬他
    J. Plasma Fusion Res. 83, 413-464 (2007) [in Japanese]
  • Direct measurement of density oscillation induced by a radio-frequency wave
    T. Yamada, A. Ejiri, Y. Shimada, T. Oosako, J. Tsujimura, and Y. Takase and H. Kasahara
    Rev. Sci. Instrum. 78, 083502 (2007).
  • First Observation of RF-Induced Visible Light Fluctuations
    Yuki TORII, Akira EJIRI, Tetsuya MASUDA, Takuya OOSAKO, Makoto SASAKI, Hiroshi TOJO, Hideo NUGA, Yoshiyuki SHIMADA, Nobuyuki SUMITOMO, Jiro TSUJIMURA, Soichiro KAINAGA, Junichi SUGIYAMA and Yuichi TAKASE
    Plasma Fusion Res. 2, 023 (2007).
  • Toroidal current initiation in low aspect ratio tokamaks based on single-particle orbit analysis
    A. Ejiri and Y. Takase
    Nucl. Fusion 47, 403-416 (2007).
  • Prospective performances in JT-60SA towards the ITER and DEMO relevant plasmas,
    H. Tamai, T. Fujita, M. Kikuchi, K. Kizu, G. Kurita, K. Masaki, M. Matsukawa, Y. Miura, S. Sakurai, A.M. Sukegawa, Y. Suzuki, Y. Takase, K. Tsuchiya, D. Campbell, F. Romanelli
    Fusion Engineering and Design 82, 541 (2007).
  • Design optimization for plasma performance and assessment of operation regimes in JT-60SA
    T. Fujita, H. Tamai, M. Matsukawa, G. Kurita, J. Bialek, N. Aiba, K. Tsuchiya, S. Sakurai, Y. Suzuki, K. Hamamatsu, N. Hayashi, N. Oyama, T. Suzuki, G.A. Navratil, Y. Kamada, Y. Miura, Y. Takase, D. Campbell,a, J. Pamela, F. Romanelli, and M. Kikuchi
    Nucl. Fusion 47, 1512 (2007)
  • Overview of JT-60U results for the development of a steady-state advanced tokamak scenario
    H. Takenaga and the JT-60 Team
    Nucl. Fusion 47, S563 (2007)
  • Overview of recent physics results from the National Spherical Torus Experiment (NSTX)
    J.E. Menard, M.G. Bell, R.E. Bell, S. Bernabei, J. Bialek, ..... Y. Takase,....
    Nucl. Fusion 47, S645 (2007)
  • 実用炉に向けた核融合炉開発
    松田慎三郎、西尾敏、長山好夫、高瀬雄一、飛田健次、小西哲之、岡野邦彦、中村信吉、小野靖
    IEEJ Journal 128, 74-96 (2008)
• 2006年度
  • ECH and HHFW start-up experiments on the TST-2 spherical tokamak
    A. Ejiri, T. Oosako, J. Tsujimura, Y. Shimada, Y. Takase, Y. Torii, M. Sasaki, H. Tojo, T. Masuda, H. Nuga, N. Sumitomo, S. Kainaga, J. Sugiyama and N. Tsujii
    Trans. Fusion Sci. Tech. Vol.51, No. 2T, 168-170 (2007).
  • Tokamak and Spherical Tokamak Research in Japan
    Y. Takase,
    Trans. Fusion Sci. Tech. Vol.51, No. 2T, 46-51 (2007).