Plasma Rotation Measurements by Passive Spectroscopic Method in the HYBTOK-II using a Dynamic Ergodic Divertor
スポンサーリンク
概要
- 論文の詳細を見る
Plasma rotation or its shear is important in the formation of a transport barrier. It is believed that a rotating helical magnetic field generated by a dynamic ergodic divertor (DED) can generate a rotational torque in tokamak plasmas, and therefore control the rotation profiles. To measure the plasma rotations and investigate the effect of DEDs on them, we developed a passive spectroscopic measurement system for the small tokamak HYBTOK-II. A spontaneous toroidal plasma rotation in the co-current direction and poloidal plasma rotation in the electron diamagnetic drift direction have been observed without using a DED. Considerable changes in the plasma flow have been obtained using a DED for reducing toroidal and poloidal rotation velocities near the resonant magnetic surface. The change in the plasma rotation velocity was found to couple with the change in the radial electric field.
著者
-
Ohno Noriyasu
EcoTopia Research Institute, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
-
TAKAMURA Shuichi
Department of Electrical and Electronic Engineering, Faculty of Engineering, Aichi Institute of Technology, Toyota 470-0392, Japan
-
OKAMOTO Masaaki
Graduate School of Engineering, Nagoya University, Nagoya 464-8603, Japan
-
OHNO Noriyasu
EcoTopia Science Institute, Nagoya University, Nagoya 464-8603, Japan
-
HASEBE Yu
Graduate School of Engineering, Nagoya University, Nagoya 464-8603, Japan
-
KAJITA Shin
Japan Atomic Energy Agency, Naka 311-0193, Japan
関連論文
- Compact and Powerful Plasma Generator
- Asymmetric Sidebands of Low Frequency Waves in a Current Carrying Plasma
- Excitation and Damping of Continuous Pseudo Acoustic and Ion Waves in a Plasma
- Ballistic Phase Mixing of Continuous Pseudo Waves in a Plasma
- Ion Wave Damping in a Nonuniform Plasma
- Ion Wave Damping in Nonuniform Plasma
- Study of Runaway Electron Transport in Edge Stochastic Magnetic Field in the JFT-2M Tokamak
- Sensitive Detection of Probing Electron Transport and Magnetic Field Structure in Toroidal Plasma Configuration
- Effective Emission and Ionization Rate Coefficients of Atomic Carbons in Plasmas
- Development of Divertor Plasma Simulators with High Heat Flux Plasmas and its Application to Nuclear Fusion Study : A Review
- Velocity Space Diffusion of High Energy Ions Induced by a Lower Hybrid Wave in a Nonuniform Magnetic Field
- Effects of Lower Hybrid Wave Heating on Alpha-Particle Confinement in a Tokamak
- Effect of Lower Hybrid Wave Heating on Alpha-Particle Dynamics
- Observation of Transverse Dust Lattice Wave Excited by Unstable Vertical Oscillations of Dust Particles in an Ion Sheath with Low Gas Pressure
- Observation of the Structure and its Formation Process of a New Volumetric Coulormb Cloud Composed of Different Multiple Dust Layers
- Effects of Ion Flow by E×B Drift on Dust Particle Behavior in Magnetized Cylindrical Electron Cyclotron Resonance Plasmas
- Plasma-Induced Arc and Its Plasma Response in a Toroidal Device
- Erosion and Redeposition Processes of Molybdenum with Oblique Incidence of Magnetic Field
- Micron-Bubble Formation on Polycrystal Tungsten due to Low-Energy and High-Flux Helium Plasma Exposure
- Ignition Characteristics of Radio Frequency Inductively Coupled Plasmas at Atmospheric Pressure
- 27pB03 Effects of RF Power and Neutral Gas Pressure on the E-H Transition Time in High Pressure RF ICPs
- Horizontal Plasma Position Control System for a Tokamak Using Modern Optimal Control Theory
- Compact Antennas for Lower Hybrid Wave Heating
- Monitoring of Radiation and Impurity Transport in HYBTOK-I Plasma
- Alumina Loaded Antenna for Lower Hybrid Wave Heating
- Effict of Lower Hybrid Heating on Fast Ion Behavior in a Tokamak
- Interactions between Ion Waves and a High-Frequency Electric Field
- Static and Dynamic Erosion Characteristics of High-Temperature Metal-Carborn Composite Materials under High-Flux Plasma Irradiation
- Measurement of Electric Field Distribution along the Plasma Column in Microwave Jet Discharges at Atmospheric Pressure
- 01pC23P Effects of Tungsten Electrode on the Initiation of High-Pressure Induction Plasmas
- Plasma Rotation Measurements by Passive Spectroscopic Method in the HYBTOK-II using a Dynamic Ergodic Divertor
- Basic Study on the Generation of RF Plasmas in Premixed Oxy-combustion with Methane
- Alleviation of Helium Holes/Bubbles on Tungsten Surface by Use of Transient Heat Load
- Formation of Nanostructured Tungsten with Arborescent Shape due to Helium Plasma Irradiation
- Fast Initiation and Mode Transition of Radio Frequency Induction Plasmas at Atmospheric Pressure Using Tungsten Pin Electrodes Array
- Control of Energetic Electron Component in a Magnetically Confined Diffusion Ar Plasma
- Validity of Electron Temperature Measurement by Using Boltzmann Plot Method in Radio Frequency Inductive Discharge in the Atmospheric Pressure Range
- Assessment of Meander-Line Antenna Covered with Dielectric Material for LHW Heating
- Hydrogen Blister Formation on Cold-Worked Tungsten with Layered Structure
- Wave Field Structures in a Toroidal Plasma at the Frequency Range of Alfvén Resonance
- Structural Bifurcation of Microwave Helium Jet Discharge at Atmospheric Pressure
- Systematic Analysis of Current Decay Time during Disruption in HYBTOK-II Tokamak