Extension of Improved Particle and Energy Confinement Regime in the Core of LHD Plasma
スポンサーリンク
概要
- 論文の詳細を見る
Recent two major topics of Large Helical Device (LHD) towards fusion relevant conditions, high-density operation and high-ion-temperature operation, are reported. Super dense core plasma was obtained by the combination of repetitive hydrogen ice pellet injection and high power neutral beam injection (NBI) heating. A very peaked density profile with the highest central density of 1.1 × 1021 m-3 was produced showing that the particle transport was suppressed very well in the plasma core. The spatial density profile varies as the position of magnetic axis (Rax), and the steepest profile is obtained at Rax = 3.95 m. The highest central ion temperature of 5.6 keV was obtained in hydrogen plasma at electron density of 1.6 × 1019 m-3 by NBI, where a peaked ion-temperature profile with internal ion energy transport barrier was observed. The profile of electron temperature did not change much and was broad even when the ion temperature had a peaked profile. The central ion temperature is higher than the electron temperature, which is a new operation regime of LHD. High central ion temperature accompanied strong toroidal rotation and an extreme hollow profile of carbon ions (impurity hole). These steep temperature profiles were obtained so far at around Rax = 3.6 m. The compatibility between particle and energy confinement is a new issue of LHD to explore a new operation regime for attractive fusion reactor.
著者
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KUBO Shin
National Insitute for Fusion Science
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SHIMOZUMA Takashi
National Insitute for Fusion Science
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YOSHIMURA Yasuo
National Insitute for Fusion Science
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KAWAHATA Kazuo
National Insitute for Fusion Science
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OHYABU Nobuyoshi
National Insitute for Fusion Science
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KANEKO Osamu
National Insitute for Fusion Science
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KOMORI Akio
National Insitute for Fusion Science
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YAMADA Hiroshi
National Insitute for Fusion Science
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EMOTO Masahiko
National Insitute for Fusion Science
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FUNABA Hisamichi
National Insitute for Fusion Science
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GOTO Motoshi
National Insitute for Fusion Science
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IDA Katsumi
National Insitute for Fusion Science
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IKEDA Katsunori
National Insitute for Fusion Science
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ISOBE Mitsutaka
National Insitute for Fusion Science
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KUMAZAWA Ryuhei
National Insitute for Fusion Science
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MASUZAKI Suguru
National Insitute for Fusion Science
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MORISAKI Tomohiro
National Insitute for Fusion Science
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MORITA Shigeru
National Insitute for Fusion Science
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MUTO Sadatsugu
National Insitute for Fusion Science
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NAGAYAMA Yoshio
National Insitute for Fusion Science
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NAKAMURA Yukio
National Insitute for Fusion Science
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NAKANISHI Hideya
National Insitute for Fusion Science
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NARIHARA Kazumichi
National Insitute for Fusion Science
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NARUSHIMA Yoshiro
National Insitute for Fusion Science
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NISHIMURA Kiyohiko
National Insitute for Fusion Science
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OHDACHI Satoshi
National Insitute for Fusion Science
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OSAKABE Masaki
National Insitute for Fusion Science
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SAGARA Akio
National Insitute for Fusion Science
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SAKAKIBARA Satoru
National Insitute for Fusion Science
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SAKAMOTO Ryuichi
National Insitute for Fusion Science
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SEKI Tetsuo
National Insitute for Fusion Science
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SHOJI Mamoru
National Insitute for Fusion Science
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SUDO Shigeru
National Insitute for Fusion Science
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TAKEIRI Yasuhiko
National Insitute for Fusion Science
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TOI Kazuo
National Insitute for Fusion Science
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TOKUZAWA Tokihiko
National Insitute for Fusion Science
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TSUMORI Katsuyoshi
National Insitute for Fusion Science
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WATANABE Kiyomasa
National Insitute for Fusion Science
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YAMADA Ichihiro
National Insitute for Fusion Science
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YOKOYAMA Masayuki
National Insitute for Fusion Science
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YOSHINUMA Mikiro
National Insitute for Fusion Science
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KOBAYASHI Masahiro
National Institute for Fusion Science, 322-6 Oroshi, Toki, Gifu 509-5292, Japan
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Mutoh Takashi
National Institute For Fusion Science
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ASHIKAWA Naoko
National Institute for Fusion Science
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Kato Daiji
National Inst. Fusion Sci. Toki Jpn
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Ichiguchi Katsuji
National Inst. For Fusion Sci. 322-6 Oroshi-cho Toki 509-5292 Jpn
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SUZUKI Chihiro
National Institute for Fusion Science
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NISHIURA Masaki
National Institute for Fusion Science
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KASUYA Naohiro
National Institute for Fusion Science
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Suzuki Yasuhiro
National Agriculture And Food Res. Organization (naro) National Inst. Of Crop Sci.
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Hamaguchi Shinji
National Institute For Fusion Science
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MITO Toshiyuki
National Institute for Fusion Science
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YANAGI Nagato
National Institute for Fusion Science
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TAKAHATA Kazuya
National Institute for Fusion Science
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CHIKARAISHI Hirotaka
National Institute for Fusion Science
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TAMURA Hitoshi
National Institute for Fusion Science
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IWAMOTO Akifumi
National Institute for Fusion Science
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MAEKAWA Ryuji
National Institute for Fusion Science
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Saito Kenji
National Institute of Genetics Research Organization of Information and Systems
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Sugama Hideo
National Institute for Fusion Science
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IGAMI Hiroe
National Institute for Fusion Science
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Tamura Naoki
National Institute For Fusion Science
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GONCHAROV Pavel
National Institute for Fusion Science
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OZAKI Tetsuo
National Institute for Fusion Science
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KANNO Ryutaro
National Institute for Fusion Science
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Toda Shinichiro
National Institute For Fusion Science
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MIZUGUCHI Naoki
National Institute for Fusion Science
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Imagawa Shinsaku
National Institute For Fusion Science
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Itoh Kimitaka
National Inst. For Fusion Sci. Gifu
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YOSHIMURA Shinji
National Institute for Fusion Science
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Akiyama Tsuyoshi
National Cardiovascular Center
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Nakajima Noriyoshi
National Institute For Fusion Science
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Shimizu Akihiro
National Inst. For Fusion Sci. Toki 509-5292 Jpn
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Ido Takeshi
National Inst. For Fusion Sci. Toki 509-5292 Jpn
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Tanaka Kenji
National Food Institute
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KASAHARA Hiroshi
National Institute for Fusion Science
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PETERSON Byron
National Insitute for Fusion Science
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Sato Kuninori
National Insititute for Fusion Science
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MORITA Shigeru
National Institute for Fusion Science, Toki 509-5292 Japan
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NAGAOKA Ken-ichi
National Institute for Fusion Science, Toki 509-5292 Japan
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GOTO Takuya
National Institute for Fusion Science, Toki 509-5292 Japan
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MIYAZAWA Jun-ichi
National Institute for Fusion Science, Toki 509-5292 Japan
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MOTOJIMA Gen
National Institute for Fusion Science, Toki 509-5292 Japan
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OBANA Tetsuhiro
National Institute for Fusion Science, Toki 509-5292 Japan
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SATAKE Shinsuke
National Institute for Fusion Science, Toki 509-5292 Japan
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TAKAHASHI Hiromi
National Institute for Fusion Science, Toki 509-5292 Japan
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TOKITANI Masayuki
National Institute for Fusion Science, Toki 509-5292 Japan
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YAMAGISHI Osamu
National Institute for Fusion Science, Toki 509-5292 Japan
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OHYABU Nobuyoshi
National Institute for Fusion Science, Toki 509-5292 Japan
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KAWAHATA Kazuo
National Institute for Fusion Science, Toki 509-5292 Japan
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MORISAKI Tomohiro
National Institute for Fusion Science, Toki 509-5292 Japan
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WATANABE Kiyomasa
National Institute for Fusion Science, Toki 509-5292 Japan
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NARUSHIMA Yoshiro
National Institute for Fusion Science, Toki 509-5292 Japan
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YOSHINUMA Mikiro
National Institute for Fusion Science, Toki 509-5292 Japan
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NAGAOKA Ken-ichi
National Institute for Fusion Science
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TOKITANI Masayuki
National Institute for Fusion Science, 322-6 Oroshi-cho, Toki 509-5292, Japan
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SHIMOZUMA Takashi
National Institute for Fusion Science, Toki 509-5292 Japan
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SHIMIZU Akihiro
National Institute for Fusion Science, Toki 509-5292 Japan
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MUTOH Takashi
National Institute for Fusion Science, Toki 509-5292 Japan
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SATO Kuninori
National Institute for Fusion Science, Toki 509-5292 Japan
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MOTOJIMA Gen
National Institute for Fusion Science, 322-6 Oroshi-cho, Toki 509-5292, Japan
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SEKI Tetsuo
National Institute for Fusion Science, Toki 509-5292 Japan
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SAKAMOTO Ryuichi
National Institute for Fusion Science, Toki 509-5292 Japan
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MIZUGUCHI Naoki
National Institute for Fusion Science, Toki 509-5292 Japan
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FUNABA Hisamichi
National Institute for Fusion Science, Toki 509-5292 Japan
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ICHIGUCHI Katsuji
National Institute for Fusion Science, Toki 509-5292 Japan
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YAMADA Ichihiro
National Institute for Fusion Science, Toki 509-5292 Japan
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IMAGAWA Shinsaku
National Institute for Fusion Science, Toki 509-5292 Japan
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TAKEIRI Yasuhiko
National Institute for Fusion Science, Toki 509-5292 Japan
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MUTO Sadatsugu
National Institute for Fusion Science, Toki 509-5292 Japan
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ASHIKAWA Naoko
National Institute for Fusion Science, Toki 509-5292 Japan
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SUDO Shigeru
National Institute for Fusion Science, Toki 509-5292 Japan
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SAKAKIBARA Satoru
National Institute for Fusion Science, Toki 509-5292 Japan
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GOTO Takuya
National Institute for Fusion Science
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GOTO Motoshi
National Institute for Fusion Science, Toki 509-5292 Japan
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SUZUKI Chihiro
National Institute for Fusion Science, Toki 509-5292 Japan
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KASUYA Naohiro
National Institute for Fusion Science, Toki 509-5292 Japan
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NISHIURA Masaki
National Institute for Fusion Science, Toki 509-5292 Japan
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TOKITANI Masayuki
National Institute for Fusion Science
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SATAKE Shinsuke
National Institute for Fusion Science, 322-6 Oroshi-cho, Toki 509-5292, Japan
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OHDACHI Satoshi
National Institute for Fusion Science, Toki 509-5292 Japan
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NAKAJIMA Noriyoshi
National Institute for Fusion Science, Toki 509-5292 Japan
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MOTOJIMA Gen
National Institute for Fusion Science
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SATAKE Shinsuke
National Institute for Fusion Science
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SAITO Kenji
National Institute for Fusion Science
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ITOH Kimitaka
National Institute for Fusion Science, Toki 509-5292 Japan
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KOBAYASHI Masahiro
National Institute for Fusion Science
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YOSHIMURA Shinji
National Institute for Fusion Science, Toki 509-5292 Japan
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IDO Takeshi
National Institute for Fusion Science, Toki 509-5292 Japan
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TAKAHASHI Hiromi
National Institute for Fusion Science
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TODA Shinichiro
National Institute for Fusion Science, Toki 509-5292 Japan
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TSUMORI Katsuyoshi
National Institute for Fusion Science, Toki 509-5292 Japan
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TAMURA Hitoshi
National Institute for Fusion Science, Toki 509-5292 Japan
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TAMURA Naoki
National Institute for Fusion Science, Toki 509-5292 Japan
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EMOTO Masahiko
National Institute for Fusion Science, Toki 509-5292 Japan
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YOKOYAMA Masayuki
National Institute for Fusion Science, Toki 509-5292 Japan
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OSAKABE Masaki
National Institute for Fusion Science, Toki 509-5292 Japan
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KUBO Shin
National Institute for Fusion Science, Toki 509-5292 Japan
関連論文
- Interferometry for Weakly Relativistic Plasmas
- Stability and Confinement Studies of High-Performance NBI Plasmas in the Large Helical Device Toward a Steady-State Helical Fusion Reactor
- Achievement of 10 keV Central Electron Temperatures by ECH in LHD
- Composition of Positive Ions in High-Density H_2 Plasmas Measured by Time-of-Flight Mass Spectrometry
- Feasibility of Microwave Transmissivity Measurement to Obtain Density Profile of Sheet Plasmas
- Local Impurity Deposition in a Magnetic Island by Means of a Tracer-Encapsulated Solid Pellet in the LHD
- Analysis of Radial Electric Field Bifurcation in LHD Based on Neoclassical Transport Theory
- Nonthermal Titanium Kα Spectra from Lower-Hybrid-Current-Driven Plasmas in the JIPPT-IIU Tokamak
- Transition of Edge Particle Transport in CHS
- Extension of Improved Particle and Energy Confinement Regime in the Core of LHD Plasma
- Clustered Data Storage for Multi-Site Fusion Experiments
- Causal Relationship between Zonal Flow and Turbulence in a Toroidal Plasma(Gases, plasmas, electric discharges, and beams)
- Conceptual Design of a Dispersion Interferometer Using a Ratio of Modulation Amplitudes
- Improved Resolution and Stability in a Dispersion Interferometer Using a Modulation Amplitude Ratio
- Construction of a 100-Hz-Repetition-Rate 28-Channel Thomson Scattering System for the JIPPT-IIU Tokamak
- Improvement in Plasma Heating at Higher-Density Region Using 106.4GHz Electron Cyclotron Heating System for Compact Helical System(Gases, plasmas, electric discharges, and beams)
- Statistical Estimation of Power Deposition Profile in Electron Cyclotron Heated Plasmas
- Band Rejection Filter for Measurement of Electron Cyclotron Emission during Electron Cyclotron Heating
- Electron Cyclotron Emission from Optically Thin Plasma in Compact Helical System
- Calibration Source for Electron Cyclotron Emission Measurements
- Feasibility of Electron Density Measurement Using Relativistic Downshift Frequency Effect of Electron Cyclotron Emission in Tokamak Plasmas
- Physics of Heliotron J Confinement
- Mode-Content Analysis and Field Reconstruction of Propagating Waves in Corrugated Waveguides of an ECH System
- Far Infrared Laser Diagnostics on the Compact Helical System
- Potential Measurement with the 6-MeV Heavy Ion Beam Probe of LHD
- Turbulence Response in the High Ti Discharge of the LHD
- Dynamic Transport Study of Electron Thermal Energy in Nonlinear Fusion Plasma
- Long Range Temperature Fluctuation in LHD
- Estimation of the Effective Collective Thomson Scattering Volume Using a Gaussian Beam in the LHD ECRH System
- Electrostatic Potential Measurement by Using 6-MeV Heavy Ion Beam Probe on LHD
- Observation of Edge Reynolds Stress Increase Preceding an L-H Transition in Compact Helical System
- Transport Dynamics and Multi-Scale Coupling of Turbulence in LHD
- Electron Heat Transport Analysis of Low-Collisionality Plasmas in the Neoclassical-Transport-Optimized Configuration of LHD
- Measuring Electron Temperature in the Tandem Mirror GAMMA 10 Plasma Using a Yttrium-Aluminum-Garnet Thomson Scattering System
- Particle Transport and Fluctuation Characteristics around the Neoclassically Optimized Configuration in LHD
- Improvement of Ion Confinement in Core Electron-Root Confinement (CERC) Plasmas in Large Helical Device
- Configuration Effects on Local Transport in High-Beta LHD Plasmas
- Experimental Conditions for Electron Bernstein Wave Heating Using EC Waves Injected from High-Field Side in CHS
- Triggering Instability of Sawtooth Crash in NBI-Heated Plasmas of CHS Heliotron/Torsatron
- Collective Thomson Scattering Study Using Gyrotron in LHD
- Observation of Space and Energy Distributions of High Energy Electrons Produced in ECH Plasmas of LHD
- Development of a Plasma Diagnostics System Using an Impulse Waveform Voltage
- 01aB22P Simulation Studies of Zonal Flows and Electron Bernstein Waves in Helical Systems
- Improved Data Acquisition Methods for Uninterrupted Signal Monitoring and Ultra-Fast Plasma Diagnostics in LHD
- Bi-Coherence Analysis of Fluctuations with Long Distance Correlation in Toroidal Plasmas
- Modeling of OXB Mode Conversion Scenario for EBWH/CD Experiments in QUEST
- Conceptual Design of Electron Density Measurement System for DEMO-Relevant Helical Plasmas
- Development of Collective Thomson Scattering Diagnostic for Bulk and Fast Ions in the Large Helical Device
- Improvements of CO2 Laser Heterodyne Imaging Interferometer for Electron Density Profile Measurements on LHD
- First Observation of ECH by Electron Bernstein Waves Excited via X-B Mode Conversion Process in LHD
- Present Status in the Development of 6 MeV Heavy Ion Beam Probe on LHD
- Study of Edge Transport Barrier Formation on CHS Plasma
- Nonstop Lose-Less Data Acquisition and Storing Method for Plasma Motion Images
- Experimental Study of Slow Cyclotron Maser Operation in Weakly Relativistic Region
- Design and Installation of a New Electron Cyclotron Emission Diagnostic Antenna in LHD
- First Demonstration of Rotational Transform Control by Electron Cyclotron Current Drive in Large Helical Device
- Design of Reflecting Mirrors for Electron Cyclotron Wave Launching System in GAMMA 10
- Improvement of Power Transmission for Fundamental Electron Cyclotron Resonance Heating System in GAMMA 10 Central Cell
- Composition of Positive Ions in High-Density H2 Plasmas Measured by Time-of-Flight Mass Spectrometry
- Formation of Electron-Root Radial Electric Field and its Effect on Thermal Transport in LHD High Te Plasma
- Fast-Ion-Diagnostics for CHS Experiment
- ECW/EBW Heating and Current Drive Experiment Results and Prospects for CW Operation in QUEST
- Simulation Studies on Advanced Microwave Diagnostics and Related Technology
- Experimental Study of Nonlinear Processes in Edge Turbulence of Toroidal Plasmas
- Broadband Multichannel Radiometer for ECE Measurements on KSTAR
- Pellet Injection and Internal Diffusion Barrier Formation in Large Helical Device
- Characteristics of Radiating Collapse at the Density Limit in the Large Helical Device
- Time Evolution of the Rotational Transform Profile in Current-Carrying LHD Plasmas
- Determination of the Major Impurity Radiators in the Reheat Mode Discharges in the Compact Helical System
- Effect of Ellipticity on Thermal Transport in ECH Plasmas in LHD
- Electron Bernstein Wave Heating through Slow X-B Mode Conversion in CHS
- Dependence of EC-Driven Current on the EC-Wave Beam Direction in LHD
- O-X-B Heating of Overdense Plasmas by 54.5 GHz Electron Cyclotron Waves in CHS
- Density Control by Second Harmonic X-Mode ECRH in LHD
- Development of ECE Imaging System on LHD
- Effects of Resonant Magnetic Fluctuations on Plasma Confinement in Current Carrying high-β Plasmas of LHD
- Onset of Resistive Interchange Mode in the Large Helical Device
- ECCD Experiment Using an Upgraded ECH System on LHD
- Measurements of Micro-Turbulence in High Beta and High Density Regimes of LHD and Comparison with Resistive G-Mode Scaling
- Laser Scattering Measurement of the Electron Density Fluctuations in CHS
- Characteristic Formation of Edge Transport Barrier in the Compact Helical System
- High Power and High Efficiency Operation of 77 GHz Gyrotrons by Stepwise Raising of the Anode Voltage
- Advanced Laser Diagnostics for Electron Density Measurements
- Efficient Heating at the Third-Harmonic Electron Cyclotron Resonance in the Large Helical Device
- Bench Testing of New Polarimeter with Silicon Photoelastic Modulator for Short Wavelength FIR Laser
- Design of the 48, 57 μm Poloidal Polarimeter for ITER
- Reconstruction of Edge Density Profiles Using Ultrashort-Pulse Reflectometry in LHD
- Density Reconstruction Using a Multi-Channel Far-Infrared Laser Interferometer and Particle Transport Study of a Pellet-Injected Plasma on the LHD
- Observation of the Internal Structure of Energetic Particle-Driven MHD Modes in a Large Helical Device
- Performance Improvement in Real-Time Mapping of Thomson Scattering Data to Flux Coordinates in LHD
- Instrumental Capabilities and Limitations of Two-Dimensional Phase Contrast Imaging on LHD
- Identification of Spurious Modes of High-Power 77-GHz Gyrotron for Collective Thomson Scattering in LHD
- Experimental Results for Electron Bernstein Wave Heating in the Large Helical Device
- First Observation of High Density Edge Transport Barrier Formation during Reheat Mode of Helical Plasma in CHS
- A Simultaneous Spectroscopic Measurement of the Global and Edge Local Structures in the Ion Temperature and Plasma Rotation Profiles in the Compact Helical System
- ECCD Experiments in Heliotron J, TJ-II, CHS, and LHD
- Quasi-Optical High Purity HE11-Mode Exciter for Oversized Corrugated Waveguide Transmission
- Interpretation of Line-Integrated Signals from 2-D Phase Contrast Imaging on LHD
- Notch Filter in 70 GHz Range for Microwave Plasma Diagnostics
- Bifurcation-Like Behavior of Electrostatic Potential in LHD