Design and Installation of a New Electron Cyclotron Emission Diagnostic Antenna in LHD
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概要
- 論文の詳細を見る
A new electron cyclotron emission (ECE) antenna was designed and installed outside of torus, when the heating and diagnostics systems were reconfigured in LHD. Its design is based on Gaussian beam optics and consists of two plane and two concave mirrors. The mirror surfaces are defined using the concept of constant phase to improve matching to the corrugated waveguide. The new ECE antenna was used in a 2010 experiment to measure the electron temperature profile and its fluctuations.
著者
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KUBO Shin
National Insitute for Fusion Science
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KAWAHATA Kazuo
National Insitute for Fusion Science
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NAGAYAMA Yoshio
National Insitute for Fusion Science
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Inagaki Shigeru
Research Institute For Applied Mechanics Kyushu University
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TSUCHIYA Hayato
National Institute for Fusion Science, 322-6 Oroshi, Toki 509-5292, Japan
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KAWAHATA Kazuo
National Institute for Fusion Science, Toki 509-5292, Japan
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TSUCHIYA Hayato
National Institute for Fusion Science
関連論文
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- Achievement of 10 keV Central Electron Temperatures by ECH in LHD
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- Feasibility of Microwave Transmissivity Measurement to Obtain Density Profile of Sheet Plasmas
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- Analysis of Radial Electric Field Bifurcation in LHD Based on Neoclassical Transport Theory
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- Steady Burning Criteria for D-3He Spherical Tokamak Reactor with Internal Transport Barrier
- Evaluation of Edge Electron Temperature Fluctuations Using a Conditional Technique on TST-2
- Extension of Improved Particle and Energy Confinement Regime in the Core of LHD Plasma
- Coexistence of Zonal Flows and Drift-Waves in a Cylindrical Magnetized Plasma(Gases, plasmas, electric discharges, and beams)
- Clustered Data Storage for Multi-Site Fusion Experiments
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- 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
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- 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
- Maximum Entropy Analysis of the 2D Density Turbulence Measured by MIR in TPE-RX
- Nonlinear Energy Transfer of Drift-Wave Fluctuation in a Cylindrical Laboratory Plasma
- Density Collapse and Fluctuation Observed in Poloidally Rotating Plasma on TU-Heliac
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- Estimation of the Effective Collective Thomson Scattering Volume Using a Gaussian Beam in the LHD ECRH System
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- Experimental Conditions for Electron Bernstein Wave Heating Using EC Waves Injected from High-Field Side in CHS
- Collective Thomson Scattering Study Using Gyrotron in LHD
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- Bi-Coherence Analysis of Fluctuations with Long Distance Correlation in Toroidal Plasmas
- Assessment of Spherical Tokamak Reactors Comparing with Other Fusion Power Plants
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- Recent Progress on Microwave Imaging Technology and New Physics Results
- Development of Collective Thomson Scattering Diagnostic for Bulk and Fast Ions in the Large Helical Device
- A Conceptual Design of Superconducting Spherical Tokamak Reactor
- Development of Portal Web Pages for the LHD Experiment
- 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
- Nonstop Lose-Less Data Acquisition and Storing Method for Plasma Motion Images
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- 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
- ECW/EBW Heating and Current Drive Experiment Results and Prospects for CW Operation in QUEST
- Simulation Studies on Advanced Microwave Diagnostics and Related Technology
- Broadband Multichannel Radiometer for ECE Measurements on KSTAR
- Identification of MHD Mode Structure using ECE and SX Measurements
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- Characteristics of Radiating Collapse at the Density Limit in the Large Helical Device
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- Effect of Ellipticity on Thermal Transport in ECH Plasmas in LHD
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- 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
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- Advanced Laser Diagnostics for Electron Density Measurements
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