Ion Heating Experiments Using Perpendicular Neutral Beam Injection in the Large Helical Device
スポンサーリンク
概要
- 論文の詳細を見る
A perpendicular neutral beam (P-NB) injector was installed in the Large Helical Device (LHD) and utilized for high-power ion heating and measurement of the ion temperature (Ti) profile by charge exchange spectroscopy. Significant progress was achieved in ion heating experiments using P-NB, and a high Ti of 5.2 keV was achieved at the plasma center. A Ti peak profile with a steep gradient in the core region was observed, indicating an improved mode of ion transport. The enhancement of toroidal flow in the core region was observed with the Ti rise. Transport analysis shows improvement in anomalous transport in the core region, and the neoclassical transport remains unchanged when the high Ti is realized.
- 社団法人 プラズマ・核融合学会の論文
著者
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KANEKO Osamu
National Insitute for Fusion Science
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FUNABA Hisamichi
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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MORITA Shigeru
National Insitute for Fusion Science
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OKA Yoshihide
National Insitute for Fusion Science
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OSAKABE Masaki
National Insitute for Fusion Science
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SEKI Tetsuo
National Insitute for Fusion Science
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TAKEIRI Yasuhiko
National Insitute for Fusion Science
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TSUMORI Katsuyoshi
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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Mutoh Takashi
National Institute For Fusion Science
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NAGAOKA Kenichi
National Institute for Fusion Science
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IKEDA Katsunori
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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MATSUOKA Seikichi
Department of Nuclear Engineering, Kyoto University, Kyoto 606-8501, Japan
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YOSHINUMA Mikiro
National Institute for Fusion Science, Toki 509-5292, Japan
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SEKI Tetsuo
National Institute for Fusion Science, Toki 509-5292, Japan
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TAKEIRI Yasuhiko
National Institute for Fusion Science, Toki 509-5292, Japan
関連論文
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- 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
- Measurement of Edge Density Profiles and Fluctuations in the H-Mode Discharge of the Compact Helical System (CHS) with a Thermal Neutral Lithium Beam Probe
- Effect of Plasma Current on Magnetohydrodynamic Modes in Neutral Beam Heated Plasmas in Compact Helical System
- Experimental Observation of Magnetic Fluctuations in NBI Heated Plasmas in CHS
- Comparative Study on Effect of Boronization and Titanium Gettering in Compact Helical System Heliotron/Torsatron Device
- 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
- Bifurcation of Heat Transport in High Temperature Plasma(Gases, plasmas, electric discharges, and beams)
- Transition of Edge Particle Transport in CHS
- Possibility of Electric Field Bifurcation and Internal Transport barrier Formation in LHD Plasma : Fluids, Plasmas, and Electric Discharges
- Extension of Improved Particle and Energy Confinement Regime in the Core of LHD Plasma
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- Neutron and Fast Atom Spectrometry Using Natural Diamond Detectors
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- Effect of Halo Neutrals on Fast-Ion Charge Exchange Spectroscopy Measurements in LHD
- Progress in Impurity-Related Physics Experiments in LHD
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- Transport Dynamics and Multi-Scale Coupling of Turbulence in LHD
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- 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
- Effects of the Stochasticity on Transport Properties in High-β LHD
- Observation of Space and Energy Distributions of High Energy Electrons Produced in ECH Plasmas of LHD
- Optical Measurement of Cesium Behavior in a Large H− Ion Source for a Neutral Beam Injector
- Self-Reversal in Hydrogen Lyman-α Line Profile
- Evaluation of Fast-Ion Confinement Using a Radially Injected Neutral Beam in the LHD
- Development of Double-Structure Heavy-Element Impurity Pellet for Active Spectroscopy of High-Temperature Plasmas
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- Line analysis of EUV Spectra from Molybdenum and Tungsten Injected with Impurity Pellets in LHD
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- Survey of EUV Impurity Line Spectra and EUV Bremsstrahlung Continuum in LHD
- Development of Portal Web Pages for the LHD Experiment
- Experimental Check of Deceleration of Neutral Beam-Injected Energetic Ions in the HL-2A Tokamak
- Transport Study of LHD High-Beta Plasmas Based on Power Balance Analysis with TASK3D Code Module
- Present Status in the Development of 6 MeV Heavy Ion Beam Probe on LHD
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- Bifurcation of Heat Transport in High Temperature Plasma
- Effects of Plasma Radiation on the Thomson Scattering Diagnostic Installed on the Large Helical Device
- Study of Edge Transport Barrier Formation on CHS Plasma
- A Collisional-Radiative Model for Hydrogen including Velocity Changing Collisions between Atoms and Protons
- Analysis of Fe XXI Spectral Lines Measured in LHD Plasma
- Simultaneous Measurement of Electron and Ion Temperatures with Helium-like Argon X-Ray Spectrum
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