Direct Measurement of a Mode-Converted Electron Bernstein Wave in the Internal Coil Device Mini-RT

スポンサーリンク

概要

• 論文の詳細を見る

• An electric field measurement system in the Electron Cyclotron Range of Frequency (ECRF) has been developed for the direct detection of mode-converted Electron Bernstein Waves (EBWs), where a low-power ECRF wave (1-2.1 GHz, 10 W) is injected into overdense plasmas (typical peak density is 7 × 1016 m-3 ), and the ECRF electric field is directly measured using a small monopole antenna (an element size of 5 mm) inserted into the confined plasma. A density gradient is an important parameter for mode conversion to EBW. In the internal coil device, Mini-RT, a steep density gradient (e.g., Ln ∼ 5 cm) is available at the plasma surface. We have detected short-wavelength waves with refractive indices of ∼10 or more around the electron cyclotron harmonic resonance layers, and confirmed a phase reversal of an ECRF electric field at the same locations. Since the EBW is a backward wave with a short wavelength, experimental results suggest the direct measurement of the mode-converted EBW in plasma.

• 社団法人 プラズマ・核融合学会の論文

著者

• OGAWA Yuichi

  High Temperature Plasma Center, the University of Tokyo

• MORIKAWA Junji

  High Temperature Plama Center, the University of Tokyo

• Sakata Daisuke

  Graduate School Of Environmental Earth Science Hokkaido University

• Yatsuka Eiichi

  Graduate School Of Frontier Sciences The University Of Tokyo

• YATSUKA Eiichi

  Graduate School of Frontier Sciences, University of Tokyo, Kashiwa 277-8561, Japan

• SAKATA Daisuke

  Graduate School of Frontier Sciences, University of Tokyo, Kashiwa 277-8561, Japan

• KINJO Kiyotake

  Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa 277-8568, Japan

関連論文

• Experiment on Deflection of High-Speed Plastic Pellets Using Curved Guide Tubes
• Levitation Experiment Using a High-Temperature Superconductor Coil for a Plasma Confinement Device(Superconductors)
• Screening for EGFR-Binding Peptides by Multi-Component Fluorescent Labeling Method
• Plasma Production by Electron Cyclotron Heating on the Internal Coil Device Mini-RT
• Fecal DNA-based discrimination between indigenous Martes zibellina and non-indigenous Martes melampus in Hokkaido, Japan
• Plasma Production by Electron Cyclotron Heating on the Internal Coil Device Mini-RT
• Wave Characteristics in the Electron Cyclotron Range of Frequencies in Overdense Plasmas in the Internal Coil Device Mini-RT
• Long-Lived Pure Electron Plasma in Ring Trap-1
• Direct Measurement of a Mode-Converted Electron Bernstein Wave in the Internal Coil Device Mini-RT

スポンサーリンク