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活動業績

査読論文

2005（平成17）年度以降、当研究室から発表している査読付論文です。

2004年度以前のものについては、教員個人ページをご参照下さい。

2023年

  1. Akio Sanpei, Sadao Masamune, and Yasuaki Kuroe, “A Data-Assimilation Based Method for Equilibrium Reconstruction of Magnetic Fusion Plasma: Solution by Adjoint Method”, IEEE Access, Vol.11, pp.62639-62651 (2023)

  2. S. Inagaki, A. Sanpei, T. Inoue, N. Kojima, R. Takaoka, T. Sasaki, and H. Himura, “First experimental monitoring of the three-dimensional structure of toroidal plasmas using multiple soft X-ray imaging techniques”, Plasma and Fusion Research , Vol. 18, p.2402046 (2023)

  3. A. Sanpei, H. Himura, T. Inoue, S. Inagaki, N. Kojima, R. Takaoka, T. Sasaki “Relationship between edge magnetic field and rotation of the spatial structure of visible light emitted from low aspect RFP plasmas on RELAX”, Plasma and Fusion Research, Vol. 18, p.2402024 (2023)

  4. S. Inagaki, A. Sanpei, T. Inoue, H. Himura, “Initial experimental results of three-dimensional plasma structure reconstructed from seven independent X-ray images on RELAX”, Plasma and Fusion Research, Vol. 18, p.1202010 (2023)

  5. 高岡亮太, 比村治彦, “10MHzの-3dB通過帯域を持つ広帯域絶縁アンプの開発”, プラズマ・核融合学会誌, vol. 99, No. 1, 9 (2023)

  6. T. Okada, H. Himura, S. Yamada, S. Nishio, A. Sanpei, “Observation of impurity ions during a plasma translation experiment in nested Penning traps”, Physics Letters A, Vol. 460, 128617 (2023)

2022年

  1. T. Inoue, H. Himura, A. Sanpei, T. Murase, S. Nakagawa, T. Shimizu, A. Shimizu, M. Isobe, H. Hayashi, “Optimum set for completely supporting existing toroidal coils toward the investigation of two-fluid physics in toroidal plasmas”, Fusion Engineering and Design, Vol. 184, 113285 (2022)

  2. T. Ninomiya, A. Sanpei, M. Niimoto, S. Inagaki and H. Himura, “Three-dimensional reconstruction of large non-uniform surface wave plasma using multi-lens array attached to a single viewing port”, Jpn. J. Appl. Phys., Vol. 61, SI1009 (2022)

  3. S. Inagaki, A. Sanpei, H. Himura, “Multiple-pinhole camera for monitoring three-dimensional plasma shape”, Nuclear Instruments and Methods in Physics Research Section A, Vol. 1036, p.166857 (2022)

  4. Y. Kamada, E. Di Pietro, M. Hanada, P. Barabaschi, S. Ide, S. Davis, M. Yoshida, G. Giruzzi, C. Sozzi and the JT-60SA Integrated Project Team (A. Sanpei, et al), “Completion of JT-60SA construction and contribution to ITER”, Nuclear Fusion, vol. 62, No. 4, 042002 (2022)

  5. T. Nagano, A. Sanpei, S. Masamune, “Stabilization of resistive wall mode and improved plasma performance in a low-aspect-ratio reversed field pinch by a single mode control power supply system”, Electr. Eng. Jpn., Vol. 215, e23377 (2022)

  6. 長野友幸, 三瓶明希夫, 政宗貞男, “単一モード制御電源システムによる低アスペクト比RFPのRWM安定化とプラズマ性能改善”, 電気学会論文誌A, vol.142, No.2 pp.29-36 (2022)

  7. Y. Nakajima, H. Himura, T. Okada, “Clear imaging of ion cloud rotation using a combination of a thin metal wire, a micro-channel plate attached to a phosphor screen, and a high-speed camera”, AIP Advances, 12, 4, 045015 (2022)

  8. T. Kanki, H. Himura, “Simulations of novel compact separator for extracting specific reactive ions from large plasma source”, Jpn. J. Appl. Phys., 61, SI1004 (2022)

2021年

  1. T. Inoue, A. Sanpei, Y. Kawade, M. Suzuki, R. Ochiai, Y. Awatsuji, “Identification of pollens from polymer particles levitating in an RF plasma by the polarization imaging method”, IEEE Transactions on Plasma Science, Vol.49, No.9, pp.2967-2971 (2021)

  2. Y. Nakajima, H. Himura, A. Sanpei, “Counter differential rigid-rotation equilibrium of electrically non-neutral two-fluid plasma with finite pressure”, Journal of Plasma Physics, 87, 905870415 (2021)

  3. Akio Sanpei, Takayuki Okamoto, Sadao Masamune, and Yasuaki Kuroe, “A Data-Assimilation Based Method for Equilibrium Reconstruction of Magnetic Fusion Plasma and Its Application to Reversed Field Pinch”, IEEE Access, Vol.9, pp.74739-74751 (2021)

  4. Yasutaka Kawade, Akio Sanpei, Keita Akamatsu, Ryotaro Ochiai, Toshikazu Okada, Yasuaki Hayashi, and Haruhiko Himura, “Collection of microorganisms levitating in a radio-frequency discharge”, Japanese Journal of Applied Physics, vol.60, No.4, 046002 (2021)

2020年

  1. Akio Sanpei, Eisaku Kai, and Yasutaka Kawade, “Removal of ghost particles from the reconstruction of dusty plasma in integral photography by three-dimensional deconvolution”, Optics Express, Vol.28, pp.37743-37751 (2020)

  2. 長野友幸，政宗貞男，三瓶明希夫, “低アスペクト比RFP装置RELAXにおけるRWM安定化能動制御システム”, 電気学会論文誌A, vol.140, No.6 pp.340-341 (2020)

  3. M. Kitazawa, H. Himura, T. Mine, K. Kitamura, “Revisit: principle of transverse flow measurement by using an optical vortex beam in cylindrical coordinates”, OSA Continuum., 3, 9, 24701 (2020)

  4. T. Kanki, H. Himura, K. Tsumori, H. Nakano, “Simulations of negative ion extraction and transport for developing novel remote reactive ion processing system”, Japanese Journal of Applied Physics, 59, SJJE01 (2020)

2019年

  1. M. Inomoto, T. Ushiki, X. Guo, T. Sugawara, K. Kondo, T. Mihara, Y. Minami, Y. Inai, H. Kaneko, R. Yanai, Y. Takahata, H. Tanabe, Y. Ono, A. Sanpei and S. Kamio, “Effects of reconnection downstream conditions on electron parallel acceleration during the merging start-up of a spherical tokamak”, Nuclear Fusion, Volume 59, Number 8, 086040 (2019)

  2. Akio Sanpei, Tomohito Kigami, Yasuaki Hayashi, Haruhiko Himura, Sadao Masamune, Mai Sampei, “First Observation of Crystallike Configuration of Microorganisms in an RF Plasma”, IEEE Transactions on Plasma Science, Vol.47, Issue7, pp.3074-3078 (2019)

  3. R. Paccagnella, S. Masamune, N. Mizuguchi, I. Predebon, A. Sanpei, “Cylindrical vs toroidal Single Helical states in the low aspect- ratio RELAX device”, in the proceedings of the 46th EPS Conference on Plasma Physics, P5.1103 (2019)

  4. Toshiki KATO, Haruhiko HIMURA, Shinji SOWA and Akio SANPEI, “Controlling the Diameter of a Pure Electron Plasma to Produce an Exact Two-Fluid Plasma State in a Nested Trap”, Plasma and Fusion Research, 14, 1201039 (2019)

  5. K. Akaike, H. Himura, “A method for avoiding following ion leakage from a Penning trap”, Plasma and Fusion Research, 14, 4401149 (2019)

  6. N. Kodama, H. Himura, K. Azuma, K. Tsumori, H. Nakano, “Effect of a Magnetic Filter Across the Exit Hole of a Flat Oxygen Plasma Source” Plasma and Fusion Research, 14, 1206088 (2019)

2018年

  1. R. Paccagnella, S. Masamune, A. Sanpei, “Relaxation models for single helical reversed field pinch plasmas at low aspect ratio”, Physics of Plasmas, vol.25, 072507 (2018)

  2. Akihiro MOHRI and Akio SANPEI, “Repeatable Intense Beam Generation of Micro-Particles Attached with 10^7 Electrons”, Plasma and Fusion Research, vol.13, 1406042 (2018)

  3. A. Sanpei, T. Kigami, H. Kanaya, Y. Hayashi, M. Sampei, “Levitation of Microorganisms in the Sheath of an RF Plasma”, IEEE Transactions on Plasma Science, Vol.46, Issue4, pp.718-722 (2018)

  4. S. Yamada, H. Himura, T. Kato, S. Okada, A. Sanpei, S. Masamune, “Two-dimensional macroscopic shapes of lithium ion and electron plasmas after elapse of two-fluid plasma state”, Non-Neutral Plasma Physics, 10, 020016 (2018)

  5. K. Furukawa, H. Himura, S. Okada, A. Sanpei, S. Masamune, “Observation of macroscopic stability of weakly magnetized Li+ ion beams near the Brillouin density limit”, Non-Neutral Plasma Physics, 10, 020002 (2018)

  6. K. Akaike, H. Himura, “Studies of ion leakage from a Penning trap induced by potential barrier closure”, Physics of Plasmas, 25, 12, 122108 (2018)

  7. H. Himura, “Recent experiments with lithium ion and electron plasmas in the BX-U linear trap
    “, Non-Neutral Plasma Physics, 10, 020005 (2018)

2017年

  1. N. Aiba, S. Pamela, M. Honda, H. Urano, C. Giroud, E. Delabie, L. Frassinetti, I. Lupelli, N. Hayashi, G, Huijsmans, the JET Contributors and JT-60SA Research Unit (A. Sanpei, et al), “Analysis of ELM stability with extended MHD models in JET, JT-60U and future JT-60SA tokamak plasmas”, Plasma Phys. Control. Fusion, vol. 60, 014032 (2017)
  2. N. Hayashi, J. Garcia, M. Honda, E. Narita, S. Ide, G. Giruzzi, Y. Sakamoto, the JT-60U Team, the JET Contributors and the JT-60SA Team (A. Sanpei, et al), “Transport modelling of JT-60U and JET plasmas with internal transport barriers towards prediction of JT-60SA high-beta steady-state scenario”, Nucl. Fusion, vol. 57, 126037 (2017)
  3. Akio Sanpei, Kazuya Tokunaga, Yasuaki Hayashi, “Design of an open-ended plenoptic camera for three-dimensional imaging of dusty plasmas”, Japanese Journal of Applied Physics, Vol.56, No.8, 080305 (2017)
  4. 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. Castejón, 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. López-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, S. 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, and Y. Yoshimura, “Extension of the operational regime of the LHD towards a deuterium experiment”, Nuclear Fusion, Vol.56, No.8, 102023 (2017)
  5. Akio Sanpei, Kanae Nishimura, Yusuke Aoki, Sadao Masamune, Haruhiko Himura, Satoshi Ohdachi, Naoki Mizuguchi, “Features of the Electron-Temperature Distribution in a Low-Aspect-Ratio Reversed Field Pinch Plasmas”, Journal of the Physical Society of Japan, Vol.86, No.6, 063501 (2017)
  6. H. Shirai, P. Barabaschi, Y. Kamada and the JT-60SA Team (A. Sanpei, et al), “Recent progress of the JT-60SA project”, Nucl. Fusion, vol. 57, 102002 (2017)
  7. T Onchi, A Fujisawa, A Sanpei, H Himura, S Masamune and RELAX team, “Permutation entropy and statistical complexity in characterising low-aspect-ratio reversed-field pinch plasma”, Physica Scripta, vol.92, 055601 (2017)

  8. H. Himura, S. Kawai, K. Akaike, S. Okada, J. Aoki, S. Masamune, “Intermittent ion leakage from a Penning trap during potential barrier closure”, Physics of Plasmas, 24, 10, 102129 (2017)

  9. H. Himura, S. Yamada, T. Kato, S. Masamune, “First observation of independent ion and electron plasmas after elapse of two-fluid plasma state”, Plasma and Fusion Research, 12, 1201037 (2017)

2016年

  1. H. Himura, S. Nakata, A. Sanpei, “Applicability of micro-channel plate followed by phosphor screen to charged particles”, Rev. Sci. Instrum., vol.87, p.063306 (2016)

  2. H. Himura
    “BX-U linear trap for one-way production and confinement of Li+ and e－ plasmas”,

    Nuclear Instruments and Methods in Physics Research Section A: Accelerators,Spectrometers, Detectors and Associated Equipment Volume 811, 1 March 2016, Pages
    100-107.
    DOI: 10.1016/j.nima.2015.12.024

  3. S. Kawai, H. Himura, S. Masamune, and J. Aoki
    “Initial result of confinement of weakly magnetized lithium ion plasmas in a harmonicpotential well of the beam experiment upgrade linear trap”,
    Physics of Plasmas 23, 022113 (2016).
    DOI: 10.1063/1.4942227
  4. S. Yamada and H. Himura
    “Consecutive capture of images of both ion and electron fluids using high-voltage vacuumrelay”,
    Review of Scientific Instruments 87, 036109 (2016).
    DOI: 10.1063/1.4944861

  5. Yasuaki Hayashi, Masahiro Kawano, Akio Sanpei, and Suguru Masuzaki, “Mie-Scattering Ellipsometry System for Analysis of Dust Formation Process in Large Plasma Device”, IEEE TRANSACTIONS ON PLASMA SCIENCE, vol.44, No.6, p.1032 (2016)

  6. Akio Sanpei, Naoki Takao, Yusuke Kato, Yasuaki Hayashi, “Initial result of three-dimensional reconstruction of dusty plasma through integral photography technique”, IEEE Transactions on Plasma Science, Vol.44, Issue4, pp.558-561(2016)

2015年

  1. K. Ida, M. Yoshinuma, H. Tsuchiya, T. Kobayashi, C. Suzuki, M. Yokoyama, A. Shimizu, K. Nagaoka, S. Inagaki, K. Itoh & the LHD Experiment Group (A. Sanpei, S. Masamune, et al), “Flow damping due to stochastization of the magnetic field”, NATURE COMMUNICATIONS 6, 5816 (2015)

  2. A. Sanpei, Y. Soga, K. Ito, H. Himura, “Phase space analysis for dynamics of three vortices of pure electron plasma trapped with Penning trap”, AIP Conf. Proc., vol.1668, 030002 (2015)

  3. H. Himura, T. Noichi, S. Nakata, A. Sanpei, S. Kawai, “Improvement of confinement times of lithium ion and electron plasmas in BX-U”, AIP Conf. Proc. vol.1668, 050004 (2015)

  4. K. Ida, K. Nagaoka, S. Inagaki, H. Kasahara, T. Evans, M. Yoshinuma, K. Kamiya, S. Ohdach, M. Osakabe, M. Kobayashi, S. Sudo, K. Itoh, T. Akiyama, M. Emoto, A. Dinklage, X. Du, K. Fujii, M. Goto, T. Goto, M. Hasuo, C. Hidalgo, K. Ichiguchi, A. Ishizawa, M. Jakubowski, G. Kawamura, D. Kato, S. Morita, K. Mukai, I. Murakami, S. Murakami, Y. Narushima, M. Nunami, N. Ohno, N. Pablant1, S. Sakakibara, T. Seki, T. Shimozuma, M. Shoji, K. Tanaka, T. Tokuzawa, Y. Todo, H. Wang, M. Yokoyama, H. Yamada, Y. Takeiri, T. Mutoh, S. Imagawa, T. Mito, Y. Nagayama, K.Y. Watanabe, N. Ashikawa, H. Chikaraishi, A. Ejiri, M. Furukawa1, T. Fujita, S. Hamaguchi, H. Igami, M. Isobe, S. Masuzaki, T. Morisaki, G. Motojima, K. Nagasaki, H. Nakano, Y. Oya1, C. Suzuki, Y. Suzuki, R. Sakamoto, M. Sakamoto, A. Sanpei, H. Takahashi, H. Tsuchiya, M. Tokitani, Y. Ueda, Y. Yoshimura, S. Yamamoto1, K. Nishimura, H. Sugama, T. Yamamoto, H. Idei, A. Isayama, S. Kitajima, S. Masamune1, K. Shinohara, P.S. Bawankar, E. Bernard, M. von Berkel, H. Funaba, X.L. Huang, T. Ii, T. Ido, K. Ikeda, S. Kamio, R. Kumazawa, T. Kobayashi, C. Moon, S. Muto, J. Miyazawa, T. Ming, Y. Nakamura, S. Nishimura, K. Ogawa, T. Ozaki, T. Oishi, M. Ohno, S. Pandya, A. Shimizu, R. Seki, R. Sano, K. Saito, H. Sakaue, Y. Takemura, K. Tsumori, N. Tamura, H. Tanaka, K. Toi, B. Wieland, I. Yamada, R. Yasuhara, H. Zhang, O. Kaneko, A. Komori, “Overview of transport and MHD stability study: focusing on the impact of magnetic field topology in the Large Helical Device”, Nuclear Fusion, vol.55, 104018 (2015)
  5. H. Himura, M. Yamamoto, N. Mizuike, A. Kiyohara, “Development of prototype apparatus for creating ZnO at low temperature by DEZn and O- plasmas”, Japanese Journal of Applied Physics, 54, 1, 01AA05 (2015)

2014年

  1. Ryota UEBA, Sadao MASAMUNE, Akio SANPEI, Kosuke UCHIYAMA, Hiroyuki TANAKA, Kanae NISHIMURA, Go ISHII, Ryosuke KODERA, Haruhiko HIMURA, Daniel J. Den HARTOG and Haruhisa KOGUCHI, “Electron Temperature Measurement by Thomson Scattering in a Low-Aspect-Ratio RFP RELAX”, Plasma Fusion Res. 9, 1302009 (2014).
    DOI: 10.1585/pfr.9.1302009
  2. K. Nishimura, A. Sanpei, H. Tanaka, G. Ishii, R. Kodera, R. Ueba, H. Himura, S. Masamune, S. Ohdachi and N. Mizuguchi,
    “2D electron temperature diagnostic using soft x-ray imaging technique”,
    Rev. Sci. Instrum. 85, 033502 (2014).
    DOI: 10.1063/1.4867076
  3. Akio Sanpei, Kanae Nishimura, Sadao Masamune, Hiroyuki Tanaka, Haruhiko Himura, Satoshi Ohdachi, Naoki Mizuguchi, Tsuyoshi Akiyama,
    “Measurement and Evaluation of 3-D Structure in Low-Aspect-Ratio RFP RELAX with Dual
    SXR Imaging System”,
    JPS Conf. Proc. 1, 015027 (2014).
    DOI: 10.7566/JPSCP.1.015027
  4. Akio Sanpei, Haruhiko Himura, Sadao Masamune,
    “Formation Process of Non-Neutral Plasmas by Multiple Electron Beams on BX-U”,
    JPS Conf. Proc. 1, 015039 (2014).
    DOI: 10.7566/JPSCP.1.015039
  5. Haruka Shimomura, Haruhiko Himura, Akio Sanpei, Sadao Masamune,
    “Effects of Rotating Electric Field on Simultaneous Confinement of Lithium and Electron Plasmas”,
    JPS Conf. Proc. 1, 015040 (2014).
    DOI: 10.7566/JPSCP.1.015040
  6. Shuichi Nishioka, Haruhiko Himura, Akio Sanpei, Sadao Masamune,
    “Analysis of Orbital E×B Rotation of Non-Neutral Plasmas Formed in BX-U”,
    JPS Conf. Proc. 1, 015041 (2014).
    DOI: 10.7566/JPSCP.1.015041
  7. Haruhiko Himura, Akio Sanpei, Yuji Nishioka, Sadao Masamune,
    “Feasibility of Growth of ZnO Cluster in Penning Trap”,
    JPS Conf. Proc. 1, 015067 (2014).
    DOI: 10.7566/JPSCP.1.015067
  8. Masafumi ITAGAKI, Akio SANPEI, Sadao MASAMUNE and Kiyomasa WATANABE,
    “Reconstruction of the Eddy Current Distribution on the Vacuum Vessel in a Reversed Field Pinch Device based on the External Magnetic Sensor Signals;,
    Plasma Fusion Res. 9, 1402046 (2014).
    DOI: 10.1585/pfr.9.1402046
  9. Hiroyuki TANAKA, Sadao MASAMUNE, Seiya NAKAKI, Akio SANPEI, Kanae NISHIMURA, Ryosuke KODERA, Ryota UEBA, Go ISHII, Haruhiko HIMURA and Roberto PACCAGNELLA,
    “Effect on Plasma Performance of a Single MHD Mode Feedback Control in Low-Aspect-Ratio RFP RELAX;,
    Plasma Fusion Res. 9, 1302057 (2014).
    DOI: 10.1585/pfr.9.1302057
  10. T. Onchi, A. Fujisawa, A. Sanpei, “A Prototype Diagnostics System to Detect Ultraviolet Emission for Plasma Turbulence”, Rev. Sci. Instrum., 85, 113502 (2014)
  11. Masafumi ITAGAKI, A. Sanpei, S. Masamune, Kiyomasa WATANABE, “Reconstruction of the Eddy Current Profile on the Vacuum Vessel in a Fusion Device using only External Magnetic Sensor Signals”, WIT Transactions on Modelling and Simulation, Volume 57, pp.149-162 (2014)
  12. M. Itagaki, A. Sanpei, S. Masamune, K. Watanabe, “Reconstruction of the Eddy Current Distribution on the Vacuum Vessel in a Reversed Field Pinch Device based on the External Magnetic Sensor Signals”, Plasma and Fusion Research, Volume 9, 1402046-1 – 1402046-13 (2014)

2013年

  1. Ryuya Ikezoe(KIT, Univ. Tsukuba), Sadao Masamune, Kensuke Oki(KIT, Univ. Tsukuba), Akio Sanpei, Haruhiko Himura, Takumi Onchi(Univ. Saskatchewan), and Akira Hirose(Univ. Saskatchewan),
    “Asymmetric toroidal flux generation due to phase locking of internally resonant tearing modes in the RELAX reversed-field pinch”,
    Plasma Phys. Control. Fusion, 55, p.15005 (2013).
    DOI: 10.1088/0741-3335/55/1/015005
  2. Haruka SHIMOMURA, Haruhiko HIMURA, Takahiro OHTA, Takafumi NAKASE, Shuichi NISHIOKA, Akio SANPEI, Sadao MASAMUNE and Akihiro MOHRI (Kyoto Univ.),
    “Not Only Independently Producing but Simultaneously Confining of Lithium and Electron Plasmas”, Plasma Fusion Res. 8, 1201003 (2013).
    DOI: 10.1585/pfr.8.1201003
  3. 中瀬貴文, 比村治彦, 塩野剛司, 竹内信行,
    “蛍光体をITO膜付ガラス盤上へ塗布する簡易な方法”,
    J. Plasma Fusion Res. 89, No.3 (2013)180‐183.
  4. H. Himura, H. Shimomura, T. Nakase, A. Sanpei, S. Masamune,
    “Initial results on simultaneous confinement of pure lithium ion and electron plasmas”,
    Plasma Fusion Res. 8, 2401017-1 – 2401017-5 (2013).
    DOI: 10.1585/pfr.8.2401017 
  5. K. Oki, A. Sanpei, H. Himura, S. Masamune,
    “Dependence of Properties of Quasi-Single-Helicity States on Field Reversal Parameter in a Low-Aspect-Ratio Reversed Field Pinch”,
    Fusion Science and Technology 63, Number 1T, Pages 386-388 (2013).
  6. Y. Kamada, P. Barabaschi, S. Ishida, the JT-60SA Team and JT-60SA Research Plan Contributors (A. Sanpei, et al), “Progress of the JT-60SA project”, Nucl. Fusion, vol. 53, 104010 (2013)

2012年

  1. Kensuke OKI, Daisuke FUKAHORI, Kazuaki DEGUCHI, Seiya NAKAKI, Akio SANPEI, Haruhiko HIMURA, Sadao MASAMUNE and Roberto PACCAGNELLA
    “Characterization of Quasi-Single-Helicity States in a Low-Aspect-Ratio RFP”,
    Plasma Fusion Res. 7, 1402028 (2012).
    DOI: 10.1585/pfr.7.1402028
  2. Akio SANPEI, Kensuke OKI, Daisuke FUKAHORI, Kazuaki DEGUCHI, Seiya NAKAKI, Kanae NISHIMURA, Haruhiko HIMURA, Sadao MASAMUNE, Satoshi OHDACHI (NIFS), Nobuhiro NISHINO (Hiroshima Univ.) and Takumi ONCHI (Univ. Saskatchewan),
    “Design and Initial Result of Time-Resolved Vertical Soft X-Ray Imaging System in Low-A RFP”, Plasma Fusion Res., 7, 2402052 (2012).
    DOI: 10.1585/pfr.7.2402052
  3. Naoki MIZUGUCHI(NIFS, Sokendai), Akio SANPEI, Shinichi FUJITA, Kensuke OKI, Haruhiko HIMURA, Sadao MASAMUNE and Katsuji ICHIGUCHI(NIFS, Sokendai),
    “Modeling of Formation of Helical Structures in Reversed-Field Pinch”,
    Plasma Fusion Res., 7, 2403117 (2012).
    DOI: 10.1585/pfr.7.2403117
  4. Ryuya Ikezoe(KIT, Univ. Tsukuba), Sadao Masamune, Kensuke Oki(KIT, Univ. Tsukuba), Akio Sanpei, Haruhiko Himura, Takumi Onchi(Univ. Saskatchewan), and Akira Hirose(Univ. Saskatchewan),
    “Phase Locking and Unlocking Associated with Transition to Quasi-Single Helicity State in RELAX Reversed Field Pinch”,
    J. Phys. Soc. Jpn., 81, No.11, p.115001 (2012).
    DOI: 10.1143/JPSJ.81.115001

2011年

  1. R. Ikezoe, K. Oki, T. Onchi, Y. Konishi, M. Sugihara, S. Fujita, A. Sanpei, H. Himura and S. Masamune “Extended operational regimes and MHD behavior in a low-aspect-ratio reversed field pinch in RELAX”,
    Plasma Phys. Control. Fusion, 53, 025003 (2011).
    doi:10.1088/0741-3335/53/2/025003
  2. H. Himura, A. Irie and S. Masamune
    “Plasma irradiation to ionic liquids using 2.45 GHz microwave discharges”,
    Transactions of Material Research Society of Japan, 36, 59-63 (2011).
  3. K.Y. Watanabe, S. Masamune, Y. Takemura, H. Funaba, S. Sakakibara, F. Watanabe, K. Tanaka, S. Ohdachi, K. Toi, Y. Narushima, and LHD Experiment Group,
    “Effect of pressure-driven MHD instabilities on confinement in reactor-relevant high-beta helical plasmas”,
    Phys. Plasmas, 18, 056119 (2011).
    DOI: 10.1063/1.3592675
  4. Akio SANPEI, Kensuke OKI, Mitsuru NAKAMURA, Akio HIGASHI, Hidehiko MOTOI, Daisuke FUKAHORI, Haruhiko HIMURA, Sadao MASAMUNE, Satoshi OHDACHI (NIFS), Nobuhiro NISHINO (Hiroshima Univ.), Takumi ONCHI (Univ. Saskatchewan) and Ryuya IKEZOE (Univ. Tsukuba),
    “Initial Result of Successive SXR Imaging Measurement in Low-A RFP”,
    Plasma Fusion Res., 6, 2406096 (2011).
    DOI: 10.1585/pfr.6.2406096
  5. Takumi ONCHI, Ryuya IKEZOE, Kensuke OKI, Akio SANPEI, Haruhiko HIMURA, Sadao MASAMUNE, Nobuhiro NISHINO, Haruhisa KOGUCHI,
    “Observation of Helical Structure by Imaging Diagnostics in a Low-Aspect-Ratio Reversed Field Pinch”, J. Phys. Soc. Jpn., 80, 114501 (2011).
    DOI: 10.1143/JPSJ.80.114501
  6. Akio SANPEI, Kensuke OKI, Mitsuru NAKAMURA, Akio HIGASHI, Hidehiko MOTOI, Daisuke FUKAHORI, Haruhiko HIMURA, Sadao MASAMUNE, Satoshi OHDACHI (NIFS), Nobuhiro NISHINO (Hiroshima Univ.), Takumi ONCHI (Univ. Saskatchewan) and Ryuya IKEZOE (Univ. Tsukuba),
    “Tangential Image of Helical SXR Emissivity Structure in Low-Aspect-Ratio RFP”,
    IEEE Transaction Plasma Science, 39, 2410 (2011).
    DOI: 10.1109/TPS.2011.2160369

2010

  1. T. Wada, H. Himura, S. Masamune, N. Takeuchi
    “Effect of surface alternation of hydride titanium washers on discharge characteristics of plasma gun”,
    Vacuum, 84, 564 (2010).
    DOI: 10.1016/j.vacuum.2009.06.045
  2. H. Himura, K. Nakamura, S. Masamune, M. Isobe, A. Shimizu
    “Outward electron orbit extending to inward part of closed helical magnetic surfaces surrounded by shifted negative space potential”,
    Phys. Plasmas, 17, 032507 (2010).
    DOI: 10.1063/1.3339911
  3. T. Onchi, R. Ikezoe, K. Oki, A. Sanpei, H. Himura, and S. Masamune
    “Tangential soft-x ray imaging for three-dimensional structural studies in a reversed field pinch”,
    Rev. Sci. Instrum., 81, 073502 (2010).
    DOI: 10.1063/1.3455216
  4. 比村 治彦
    “正負2つの非中性プラズマのマージングによる拡張MHDの検証実験法の開発計画”,
    電気学会論文誌A, 130, No. 10, 977-982 (2010).
  5. Daichi SUGIMOTO, Haruhiko HIMURA, Hiroyuki OKADA, Satoshi YAMAMOTO, Shinji KOBAYASHI, Tohru MIZUUCHI, Sadao MASAMUNE and Fumimichi SANO
    “Experimental Studies of Helical Nonneutral Plasmas with a Helical Magnetic Axis”,
    Plasma Fusion Res., 5, S2028 (2010).
    DOI: 10.1585/pfr.5.S2028
  6. 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).
    DOI: 10.1585/pfr.5.S2061
  7. Akio SANPEI, Ryuya IKEZOE, Takumi ONCHI, Kensuke OKI, Masaki SUGIHARA, Yuusuke KONISHI, Shin-ichi FUJITA, Mitsuru NAKAMURA, Akio HIGASHI, Hidehiko MOTOI, Haruhiko HIMURA and Sadao MASAMUNE
    “Recent Progress in Low-A RFP Plasma Research in RELAX”,
    Plasma Fusion Res., 5, S2063 (2010).
    DOI: 10.1585/pfr.5.S2063
  8. Haruhiko HIMURA, Mitsutaka ISOBE, Akihiro SHIMIZU and Sadao MASAMUNE
    “Role of Negative Potential Barrier Formed by Electrons Confined in the Stochastic Magnetic Region of Helical Nonneutral Plasmas”,
    Plasma Fusion Res., 5, S2066 (2010).
    DOI: 10.1585/pfr.5.S2066

2009年

  1. A. Sanpei, K. Oki, R. Ikezoe, T. Onchi, K. Murata, H. Shimazu, T. Yamashita, S. Fujita, H. Himura, S. Masamune, J. K. Anderson
    “Equilibrium reconstruction and estimation of neoclassical effect in low-aspect-ratio RFP experiments on RELAX “,
    J. Phys. Soc. Jpn., 78, No.1, 013501 (2009).
    DOI: 10.1143/JPSJ.78.013501
  2. S. Masamune, A. Sanpei, R. Ikezoe, T. Onchi, K. Oki, T. Yamashita, H. Shimazu, H. Himura, R. Paccagnella
    “MHD Properties of Low-aspect Ratio RFP in RELAX”,
    Journal of Fusion Energy, 28, Issue2 (2009), Page 187.
    DOI: 10.1007/s10894-008-9172-z
  3. K. Nakamura, H. Himura, M. Isobe, A. Sanpei, S. Masamune
    “Numerical Investigation of Velocity Map of Outward Electrons Penetrating in Helical Magnetic Surfaces”,
    J. Plasma Fusion Res. SERIES, Vol. 8 (2009), Page 955. (PDF)
  4. M. Miyagishi, A. Irie, H. Himura, S. Masamune, A. Sanpei, N. Hasuike, N. Ichinose, T. Wakasugi “Change in Spectrum of Ionic Liquids Exposed to 2.45GHz Surface Wave Plasmas”,
    J. Plasma Fusion Res. SERIES, Vol. 8 (2009), Page 608. (PDF)
  5. R. Ikezoe, T. Onchi, K. Oki, A. Sanpei, H. Himura, S. Masamune
    “Characterization of MHD behavior in a low-aspect ratio RFP”,
    J. Plasma Fusion Res. SERIES, Vol. 8 (2009), Page 1031. (PDF)
  6. A. Sanpei, K. Oki, R. Ikezoe, T. Onchi, H. Shimazu, T. Yamashita, H. Himura, S. Masamune “Characterization of equilibria in a low-aspect-ratio RFP”,
    J. Plasma Fusion Res. SERIES, Vol. 8 (2009), Page 1066. (PDF)

2008年

  1. T. Onchi, N. Nishino, R. Ikezoe, A. Sanpei, H. Himura, and S. Masamune, “Observation of Simple Helical Structure in Low Aspect Ratio RFP Using Fast Camera”,
    Plasma and Fusion Research (Rapid Communications) 3, 005 (2008).
    DOI: 10.1585/pfr.3.005
  2. Q. Marksteiner, T. Pedersen, J. Berkery, M. Hahm, J. Mendez, B. Gevigney, and H. Himura,
    “Observations of an ion-driven instability in non-neutral plasmas confined on magnetic surfaces”,
    Physical Review Letters, 100, 065002-1 – 065002-4 (2008).
    DOI: 10.1103/PhysRevLett.100.065002
  3. R. Ikezoe, T. Onchi, K. Oki, A. Sanpei, H. Himura, and S. Masamune
    “Quasi-Periodic Growth of a Single Helical Instability in a Low-Aspect Ratio RFP”, Plasma and Fusion Research (Rapid Communications), 3, 029 (2008).
    DOI: 10.1585/pfr.3.029
  4. K. Oki, R. Ikezoe, T. Onchi, A. Sanpei, H. Himura, S. Masamune, R. Paccagnella “Observation of Large-Scale Profile Change of Magnetic Field in a Low-Aspect Ratio Reversed Field Pinch”,
    J. Phys. Soc. Jpn., 77, No.7, 075005 (2008).
    DOI: 10.1143/JPSJ.77.075005

2007年

  1. H. Himura, H. Wakabayashi, Y. Yamamoto, M. Isobe, S. Okamura, K. Matsuoka, A. Sanpei, S. Masamune
    “Experimental verification of non-constant potential and density on magnetic surfaces of helical nonneutral plasmas”,
    Phys. Plasmas 14 pp. 022507-1 – 022507-7, 2007. (PDF)
    DOI: 10.1063/1.2458548
  2. S. Masamune, A. Sanpei, H. Himura, R. Ikezoe, T. Onchi, M. Nagata, H. Hiramatsu, D. Ishijima “Research Plans for Low-Aspect Ratio Reversed Field Pinch (RFP)”,
    Transactions of Fusion Science and Technology 51 (No. 2T) pp.197-199, 2007.
  3. A. Sanpei, K. Ito, Y. Soga, J. Aoki and Y. Kiwamoto
    “Formation of a symmetric vortex configuration in a pure electron plasma trapped with a penning trap”,
    Hyperfine Interactions 174 pp.71-76, 2007.
    DOI: 10.1007/s10751-007-9566-8
  4. H. Himura, H. Wakabayashi, Y. Yamamoto, A. Sanpei, S. Masamune, M. Isobe, S. Okamura and K. Matsuoka
    “Hot electron plasmas trapped in helical magnetic surfaces”,
    Hyperfine Interactions 174 pp.83-88, 2007. (PDF)
    DOI: 10.1007/s10751-007-9568-6
  5. H. Himura, Y. Yamamoto, A. Sanpei, S. Masamune, M. Isobe, S. Okamura, K. Matsuoka
    “Electron current measurement of helical nonneutral plasmas for investigating plasma disruption observed in CHS experiments”,
    Plasma Fusion Res. 2, S1089 (2007).
    DOI: 10.1585/pfr.2.S1089
  6. Y. Yamamoto, H. Himura, A. Sanpei, S. Masamune, M. Isobe, S. Okamura, K. Matsuoka
    “Probing of toroidal electron plasmas confined on helical magnetic surfaces”,
    Plasma Fusion Res. 2, S1093 (2007).
    DOI: 10.1585/pfr.2.S1093
  7. K. Morita, H. Himura, A. Sanpei, S. Masamune “Development of phosphor screen having gridded energy analyzer for two-fluid nonneutral plasma experiments”,
    Plasma Fusion Res. 2, S1127 (2007).
    DOI: 10.1585/pfr.2.S1127
  8. T. Onchi, A. Sanpei, R. Ikezoe, H. Himura, S. Masamune
    “Application of a soft-X ray imaging system to the STE-2 RFP”,
    Plasma Fusion Res. 2, S1063 (2007).
    DOI: 10.1585/pfr.2.S1063
  9. A. Sanpei, T. Onchi, R. Ikezoe, H. Himura, S. Masamune
    “Design of soft-X ray imaging system for magnetic islands of RFP plasmas”, Plasma Fusion Res. 2, S1064 (2007). DOI: 10.1585/pfr.2.S1064
  10. S. Masamune, A. Sanpei, R. Ikezoe, T. Onchi, K. Murata, K. Oki, H. Shimazu, T. Yamashita, H. Himura “Characterization of Initial Low-Aspect Ratio RFP Plasmas in “RELAX””,
    J. Phys. Soc. Jpn. 76 (No.12), 123501 (2007).
    DOI: 10.1143/JPSJ.76.123501

2006年

  1. H. Himura, Y. Saito, A. Sanpei, S. Masamune, N. Takeuchi, T. Shiono
    “Optimized method of producing washers of titanium hydride for plasma gun using occluded hydrogen gas”,
    Rev. Sci. Instrum. 77 pp. 073506-1 – 073506-5, 2006. (PDF)
    DOI: 10.1063/1.2227648
  2. S. Masamune, K. Yukimura “Transient Ion Sheath in Pulsed Plasmas”,
    IEEE Trans. Plasma Science, 34 (No.4) pp.1195-1198, 2006.
    DOI: 10.1109/TPS.2006.876500
  3. H. Himura, Y. Yamamoto, A. Sanpei, S. Masamune, H. Wakabayashi, M. Isobe, and the CHS group “Recent results of helical nonneutral plasmas on Compact Helical System (CHS)”,
    Non-Neutral Plasma Physics VI, pp.51-55, 2006. (ISBN 978-0-7354-0360-4)
    DOI: 10.1063/1.2387907

2005年

  1. K. Yambe, S. Masamune, H. Arimoto, K. I. .Sato
    “Effect of Plasma Biasing on Suppression of Electrostatic Fluctuationin the Edge Region of STP-3(M) Reversed Field Pinch”,
    J. Phys. Soc. Jpn. 74 (No.2), pp.605-612, 2005.
    DOI: 10.1143/JPSJ.74.605

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