Design of Soft-X Ray Imaging System for Magnetic Islands of RFP Plasmas
スポンサーリンク
概要
- 論文の詳細を見る
A soft X ray (SXR) imaging system for diagnosing magnetic islands of a reversed field pinch (RFP) plasma is proposed. The SXR imaging system utilizes a microchannel plate (MCP) to record a higher-resolution distribution of two-dimensional (2D) luminosity on a phosphor plate. In order to identify the structure of the magnetic island from the obtained SXR image, we have calculated the 2D image expected from RFP plasmas. It is found that the 2D image reflects the change in the radiation intensity caused by the magnetic island. Also, the magnetic island can be distinguished clearly when the radiation power emitted from the magnetic island is more than about 20 % of that on the magnetic axis of RFP. Regarding with the view angle α of the SXR imaging system, the magnetic island due to a tearing mode on the m = 1/n = 8 rational surface can be detected as far as α > π/10.
- 社団法人 プラズマ・核融合学会の論文
著者
-
Sanpei Akio
Department Of Electronics And Information Science Kyoto Institute Of Technology
-
Ikezoe Ryuya
Department Of Electronics Kyoto Institute Of Technology
-
Masamune Sadao
Department Of Electrical Engineering Kyoto Institute Of Technology
-
Onchi Takumi
Department Of Electronics Kyoto Institute Of Technology
-
Himura Haruhiko
Department Of Electronics Kyoto Institute Of Technology
-
SANPEI Akio
Department of Electronics, Kyoto Institute of Technology, Kyoto 606-8585, Japan
-
MASAMUNE Sadao
Department of Electronics, Kyoto Institute of Technology, Kyoto 606-8585, Japan
関連論文
- Relaxation of Azimuthal Flow Pattern from Ring to Bell Shape through Two-Dimensional Turbulence Triggered by Diocotron Instability(Gases, plasmas, electric discharges, and beams)
- Equilibrium Reconstruction and Estimation of Neoclassical Effect in Low-Aspect-Ratio Reversed Field Pinch Experiments on RELAX(Gases, plasmas, electric discharges, and beams)
- Characterization of Initial Low-Aspect Ratio RFP Plasmas in "RELAX"(Gases, plasmas, electric discharges, and beams)
- Accelerated Merging of Electron Vortices in Background Vorticity
- Effect of Plasma Biasing on Suppression of Electrostatic Fluctuation in the Edge Region of STP-3(M) Reversed Field Pinch(Gases, Plasmas and Electric Discharges)
- Contribution of the Electrostatic Fluctuation to the Particle and Energy Fluxes in the Edge Region of STP-3 (M) Reversed Field Pinch Plasma (Gases, Plasmas and Electric Discharges)
- Coupling of Tearing Modes in Normal RFP Discharge
- Observation of m=0 Structure with Streak Picture in a Reversed Field Pinch Having Large Magnetic Reynolds Number
- The Behavior of Neutral Particles in NOVA-II Plasma
- Determination of Z_ and Ion Density of NOVA II Tokamak Plasma by Neutral Beam Probe
- A Monte-Carlo Simulation for Neutral Beam Probing of Plasma Current Profile
- A Monte-Carlo Simulation for Neutral Beam Probing of Plasma Current Profile
- A Proposal for Neutral Beam Probing of Plasma Current Profile
- Non-Thermal Radiation at Runaway Electron Instability
- Production of Fast Neutral Lithium Beam for High Temperature Plasma Probing
- MHD Diffusion in the Reversed Field Pinch Plasma
- High-Density Current Injection to Magnetically Confined Plasmas with a Miniature Plasma Source
- Stability of Resistive Shell Modes in the RFP Surrounded by External Helical Current
- Magnetic Island in Helically Perturbed Force-Free Equilibrium
- Reduction of Anomalous Resistance in an RFP with Improved Shell Proximity
- Fast Electron Behavior in Comparison with Dynamo Models in a Reversed-Field Pinch
- Effect of Insulator Gap on the Performance of a Reversed-Field Pinch Produced in a Thick Metal Chamber : Nuclear Science, Plasmas and Electric Discharges
- Magnetic Fluctuations in an Asymmetric Reversed-Field Pinch
- Field Analysis of Two-Dimensional Dynamics of Non-neutral Plasma by Imaging Diagnostics and Examination by Sector Probing
- Analysis of Ion Current Extracted from Pulsed Plasma : A Basic Study on Three Dimensional Ion Implantation
- Observation of Large-Scale Profile Change of Magnetic Field in a Low-Aspect Ratio Reversed Field Pinch
- STUDY ON EVOLUTION OF ION CURRENT EXTRACTED FROM PULSED PLASMA FOR PLASMA BASED ION IMPLANTATION
- Role of Negative Potential Barrier Formed by Electrons Confined in the Stochastic Magnetic Region of Helical Nonneutral Plasmas
- Phase Locking and Unlocking Associated with Transition to Quasi-Single Helicity State in the RELAX Reversed-Field Pinch
- Observation of Helical Structure by Imaging Diagnostics in a Low-Aspect-Ratio Reversed Field Pinch
- Not Only Independently Producing but Simultaneously Confining of Lithium and Electron Plasmas
- Design of Soft-X Ray Imaging System for Magnetic Islands of RFP Plasmas
- Experimental Studies of Helical Nonneutral Plasmas with a Helical Magnetic Axis
- Effect of Plasma Biasing on Suppression of Electrostatic Fluctuation in the Edge Region of STP-3(M) Reversed Field Pinch(Gases, Plasmas and Electric Discharges)