Fast-Ion-Diagnostics for CHS Experiment
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概要
- 論文の詳細を見る
Fast-ion-diagnostics have played an important role in investigating issues related to fast ion orbits and fast-ion-driven MHD instabilities in CHS experiments. The fast-ion diagnostics employed in CHS are reviewed and experimentally obtained knowledge is summarized.
著者
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YOSHIMURA Yasuo
National Insitute for Fusion Science
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ISOBE Mitsutaka
National Insitute for Fusion Science
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OSAKABE Masaki
National Insitute for Fusion Science
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TOI Kazuo
National Insitute for Fusion Science
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MATSUOKA Keisuke
National Institute for Fusion Science
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OKAMURA Shoichi
National Institute for Fusion Science
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Sasao Mamiko
Department Of Physics Osaka University:institute Of Plasma Physics Nagoya Univ
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NAGAOKA Kenichi
National Institute for Fusion Science
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TOI Kazuo
National Institute for Fusion Science, Toki 509-5292, Japan
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DARROW Douglass.
Princeton Plasma Physics Laboratory, Princeton, NJ 08543 USA
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OSAKABE Masaki
National Institute for Fusion Science, Toki 509-5292, Japan
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SASAO Mamiko
Department of Engineering, Tohoku University
関連論文
- Excitation of Stable Alfvén Eigenmodes by Application of Alternating Magnetic Field Perturbations in the Compact Helical System
- Increase of Central Ion Temperature after Carbon Pellet Injection in Ne-Seeded NBI Discharges of LHD
- Achievement of 10 keV Central Electron Temperatures by ECH in LHD
- 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
- 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
- Multi-Channel Neutron Emission and Triton Burn-up Measurement on JT-60U Using Digital Signal Processors
- Causal Relationship between Zonal Flow and Turbulence in a Toroidal Plasma(Gases, plasmas, electric discharges, and beams)
- Neutron and Fast Atom Spectrometry Using Natural Diamond Detectors
- Measurement of Space Potential Fluctuations During MHD Activities in a Toroidal Helical Plasma with a Heavy Ion Beam Probe
- Proposal of a Single Sweep Measurement of a Potential Profile in Tokamak Plasmas by High Voltage Heavy Ion Beam Probes
- Radiation Loss and Impurity Abundance during ICRF Heating in the JIPP T-IIU Tokamak
- Effect of In Situ Carbon Coating on ICRF-Heated Tokamak Plasmas Relating to Radiation Loss by Iron-Impurities in JIPP T-IIU
- Excitation of Stable MHD Mode Using Electrodes on the Compact Helical Sytem Plasmas
- Reconstruction of Local Emissivity Profile from Chord-Integrated Soft X-Ray Data in Heliotron/Torsatron Plasmas by Singular-Value Decomposition
- 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)
- Possibility of LHD Equilibrium with Zero Rotational Transform Surface
- Effect of Inner Subshell Ionization on Emission Lines of OIV Ions
- Effect of inner subshell ionization for emission lines of OIV ion
- Applicability of Laser Imaging System Using a Near Infrared Laser to Measure Density Fluctuations in High-Temperature Plasmas
- Physics of Heliotron J Confinement
- Effect of Halo Neutrals on Fast-Ion Charge Exchange Spectroscopy Measurements in LHD
- Mode-Content Analysis and Field Reconstruction of Propagating Waves in Corrugated Waveguides of an ECH System
- Progress in Impurity-Related Physics Experiments in LHD
- Potential Measurement with the 6-MeV Heavy Ion Beam Probe of LHD
- Turbulence Response in the High Ti Discharge of the LHD
- Parameter Regime of Ion Internal Transport Barrier Formation in the Large Helical Device
- Estimation of the Effective Collective Thomson Scattering Volume Using a Gaussian Beam in the LHD ECRH System
- Neutral Gas Compression in the Helical Divertor with a Baffle Structure in the LHD Heliotron
- Observation of Edge Reynolds Stress Increase Preceding an L-H Transition in Compact Helical System
- Studies of MHD Stability Using Data Mining Technique in Helical Plasmas
- 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
- Discriminating Acquisition of 15-MeV Protons from D-3He Fusion Reaction in LHD
- 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
- Transition of Toroidal Alfvén Eigenmode to Global Alfvén Eigenmode in CHS Heliotron/Torsatron Plasmas Heated by Neutral Beam Injection
- Collective Thomson Scattering Study Using Gyrotron in LHD
- Observation of Space and Energy Distributions of High Energy Electrons Produced in ECH Plasmas of LHD
- 01aB22P Simulation Studies of Zonal Flows and Electron Bernstein Waves in Helical Systems
- Optical Measurement of Cesium Behavior in a Large H− Ion Source for a Neutral Beam Injector
- Evaluation of Fast-Ion Confinement Using a Radially Injected Neutral Beam in the LHD
- Role of Negative Potential Barrier Formed by Electrons Confined in the Stochastic Magnetic Region of Helical Nonneutral Plasmas
- Design Study of a Lost Fast-Ion Probe in Large Helical Device
- Beam Ion Losses Caused by Magnetic Field Ripples in Various Plasma Parameter Ranges in the Large Helical Device
- Conceptual Design of Electron Density Measurement System for DEMO-Relevant Helical Plasmas
- Experimental Check of Deceleration of Neutral Beam-Injected Energetic Ions in the HL-2A Tokamak
- First Observation of ECH by Electron Bernstein Waves Excited via X-B Mode Conversion Process in LHD
- Observation of Fast Ion Losses Induced by Various MHD Modes Driven by Fast Ions and Bulk Plasma Pressure in the Large Helical Device
- Design Consideration on Compact Neutron Pinhole Camera with Nuclear Emulsion for Energetic-Ion Profile Diagnostics
- Present Status in the Development of 6 MeV Heavy Ion Beam Probe on LHD
- Study on the Calibration of LHD Neutron Monitoring System
- Study of Edge Transport Barrier Formation on CHS Plasma
- Two-Dimensional Measurement of Electron Density Profile in the Edge Region of the Large Helical Device Plasma by a Sheet-Shaped Thermal Lithium Beam
- Characterization of Ion Cyclotron Wall Conditioning Using Material Probes in LHD
- Neutron Emission Profile Measurement and Fast Charge Exchange Neutral Particle Flux Measurement for Transport Analysis of Energetic Ions in JT-60U
- First Demonstration of Rotational Transform Control by Electron Cyclotron Current Drive in Large Helical Device
- Energetic-Ion-Driven Global Instabilities Observed in the Large Helical Device and Their Effects on Energetic Ion Confinement
- Fast-Ion-Diagnostics for CHS Experiment
- Escaping Ion Measurement with High Time Resolution during Bursting Modes Induced by Neutral Beam Injection on CHS
- Observation of Low Frequency MHD Mode Driven by Energetic Particles in Large Helical Device Plasmas with Strong Interchange Mode Activities
- ECW/EBW Heating and Current Drive Experiment Results and Prospects for CW Operation in QUEST
- Visualization of H− Dynamics in Extraction Region of Negative-Ion Source by Hα Imaging Spectroscopy
- Experimental Study of Nonlinear Processes in Edge Turbulence of Toroidal Plasmas
- Density Regimes of Complete Detachment and Serpens Mode in LHD
- Characteristics of Radiating Collapse at the Density Limit in the Large Helical Device
- Determination of the Major Impurity Radiators in the Reheat Mode Discharges in the Compact Helical System
- 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
- Ion Heating Experiments Using Perpendicular Neutral Beam Injection in the Large Helical Device
- 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
- Observation of the Effect of Energetic Ions on Pellet Ablation in the Large Helical Device
- Energetic Ion Measurements Using a Directional Probe
- Characteristic Formation of Edge Transport Barrier in the Compact Helical System
- Measurement of Radial Structure of Energetic-Ion-Driven MHD Modes with a Fast Response Hα-Detector Array in the Large Helical Device
- High Power and High Efficiency Operation of 77 GHz Gyrotrons by Stepwise Raising of the Anode Voltage
- Efficient Heating at the Third-Harmonic Electron Cyclotron Resonance in the Large Helical Device
- Calibrations of Fast Ion Flux Measurement Using a Hybrid Directional Probe
- Simultaneous Measurements of Proton Ratio and Beam Divergence of Positive-Ion-Based Neutral Beam in the Large Helical Device
- Analysis of Energy Spectra of Fast Ion in the Large Helical Device
- Simulation Study of Energetic Ion Transport due to Alfvén Eigenmodes in LHD Plasma
- Observation of Toroidal Flow on LHD
- Plasma Diagnostics Required for a Heliotron-Type DEMO Reactor
- 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
- Development of an Array System of Soft X-ray Detectors with Large Sensitive Area on the Large Helical Device
- Tangential SX Imaging for Visualization of Fluctuations in Toroidal Plasmas
- Non-Inductive Current Drive by EC Waves in an Inboard Poloidal Magnetic Field Null Configuration on the Spherical Tokamak QUEST
- Bifurcation-Like Behavior of Electrostatic Potential in LHD