Development of Heat Flow Measurement using Thermal Probe Method in Divertor Simulator MAP-II

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概要

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• The method of measuring heat flow Q as a function of the sheath potential V is investigated in order to improve the time response of the thermal probe method. We found that the time constant τ for reaching a steady state in thermal phenomena was 123 ± 18 s. The result of τ indicated that the applicable method for measuring the Q-V characteristic was biasing the thermal probe in a stepwise manner, and this was verified experimentally. Although there existed a V-dependent offset of the Q-V curve deduced from the temperature gradients against that calculated from the ion current, a procedure to deduce the ion temperature Ti is developed. The experimental error in Ti was too large, and was caused by the error in Q. Thus we have to improve the accuracy of the Q measurement.

• 社団法人 プラズマ・核融合学会の論文

著者

• Chung Kyu-sun

  Electric Probe Applications Laboratory (epal) Hanyang University

• TANAKA Satoru

  School of Civil Engineering, Kyoto University

• Kado Shinichiro

  High Temperature Plasma Center The University Of Tokyo

• SHIKAMA Taiichi

  School of Engineering, The University of Tokyo

• SHIKAMA Taiichi

  School of Engineering, The University of Tokyo, Bunkyo, Tokyo 113-8656, Japan

• IIDA Yohei

  School of Engineering, The University of Tokyo, Tokyo 113-8656, Japan

• KUWAHARA Yosuke

  School of Engineering, The University of Tokyo, Tokyo 113-8656, Japan

• SCOTTI Filippo

  School of Engineering, The University of Tokyo

• SCOTTI Filippo

  School of Engineering, The University of Tokyo, Bunkyo, Tokyo 113-8656, Japan

• KURIHARA Kiminori

  School of Engineering, The University of Tokyo, Bunkyo, Tokyo 113-8656, Japan

• KURIHARA Kiminori

  School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo 113-8656, Japan

• MATSUURA Hiroto

  Graduate School of Engineering, Osaka Prefecture University, Sakai, Osaka 599-8531, Japan

• KUWAHARA Yosuke

  School of Engineering, The University of Tokyo, Bunkyo, Tokyo 113-8656, Japan

• CHUNG Kyu-Sun

  Electric Probe Applications Lab (ePAL), Hanyang University, Seoul 133-791 Korea

• MATSUURA Hiroto

  Graduate School of Engineering, Osaka Prefecture University, Osaka 599-8531, Japan

• IIDA Yohei

  School of Engineering, The University of Tokyo, Bunkyo, Tokyo 113-8656, Japan

• TANAKA Satoru

  School of Engineering, The University of Tokyo, Bunkyo, Tokyo 113-8656, Japan

関連論文

• Transition of Edge Particle Transport in CHS
• Determination of Plasma Flow Velocity by Mach Probe and Triple Probe with Correction by Laser-Induced Fluorescence in Unmagnetized Plasmas
• Optimization of Hanyang University Plasma Focus Device as a Neutron Source
• Measurement of Rotational Populations of CH Radicals in Low-Temperature Plasmas
• Experimental Evaluation of Predissociation Rate in v=4 State Usable for Analysis of H_2 Fulcher-α Band Emission(Gases, Plasmas and Electric Discharges)
• Measurements of Plasma Flow Velocity in DC Plasma Jets Using Perpendicular and Parallel Mach Probes
• Measurement of Edge Plasma Heat Flux in Heliotron J Using a Thermal Probe
• HYBRID SIMULATION OF STRUCTURAL CONTROL WITH A VARIABLE DAMPER
• Applicability of Laser Imaging System Using a Near Infrared Laser to Measure Density Fluctuations in High-Temperature Plasmas
• Fulcher-α Band Spectra in Mixed Hydrogen Isotope Plasmas
• Comparison between Laser Thomson Scattering and Spectroscopic Measurements in Low Temperature Helium Plasmas in Divertor/Edge Simulator MAP-II
• Development of Laser Photodetachment Technique Using Heated Probe to Eliminate the Effect of Probe Surface Ablation Phenomena
• The Effect of Superthermal Electrons on Mach Probe Diagnostics
• Measurement of Gas Composition Ratio of H-He Mixture Plasmas in Divertor Simulator MAP-II
• Application of the Liquid-Crystal-Based Tunable Lyot Filter to the Optical Emission Imaging Plasma Spectrometry
• Thomson Scattering Measurements of Helium Recombining Plasmas in the Divertor Simulator MAP-II
• Development of Heat Flow Measurement using Thermal Probe Method in Divertor Simulator MAP-II
• Measurement of Rotational Populations of CH Radicals in Low-Temperature Plasmas
• Bispectral Analysis of Harmonic Oscillations Measured using Beam Emission Spectroscopy and Magnetic Probes in CHS
• First Observation of High Density Edge Transport Barrier Formation during Reheat Mode of Helical Plasma in CHS

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