Measurement of 3-D Mode Structure of the Edge Harmonic Oscillations in CHS using Beam Emission Spectroscopy

スポンサーリンク

概要

• 論文の詳細を見る

• The 3-D spatial structure - radial locality and poloidal/toroidal mode numbers - of the magnetohydrodynamic fluctuation called "edge harmonic oscillation (EHO)" in the compact helical system (CHS) was investigated using beam emission spectroscopy (BES) as the diagnostic method of the local density fluctuations and the magnetic probe array. We found two groups of harmonic oscillations in CHS, one with a frequency of 4.0 kHz and a harmonic located in the edge region of the normalized minor radius ρ = 0.95 near the rotational transform ι = 1 surface, and the other with a frequency of 3.5 kHz and a harmonic located in the core region ρ = 0.53 near the ι = 0.5 surface. The magnetic probe signals showed that the poloidal/toroidal mode numbers of the edge mode and the core mode were -1/1 and -2/1, respectively. They were consistent with the rotational transform of the magnetic field at the locations of those modes.

• 社団法人 プラズマ・核融合学会の論文

著者

• Akiyama T.

  National Institute for Fusion Science

• Shimizu A.

  National Cardiovascular Center, Division of Cardiology

• Kado S.

  High Temperature Plasma Center The University Of Tokyo

• OKAMURA S.

  National Institute for Fusion Science, Toki, Gifu 509-5292, Japan

• KADO S.

  High Temperature Plasma Center, The University of Tokyo, Kashiwa, Chiba 277-8568, Japan

• YOSHINUMA M.

  National Institute for Fusion Science, Toki, Gifu 509-5292, Japan

• OISHI T.

  National Institute for Fusion Science, Toki, Gifu 509-5292, Japan

• IDA K.

  National Institute for Fusion Science, Toki, Gifu 509-5292, Japan

• MINAMI T.

  National Institute for Fusion Science, Toki, Gifu 509-5292, Japan

• NAGAOKA K.

  National Institute for Fusion Science, Toki, Gifu 509-5292, Japan

関連論文

• 30pXH-8 Microturbulence measurements by using a CO_2 laser phase contrast interferometer on LHD
• 23aQB-1 Improvement of Laser Thomson Scattering system for low temperature plasmas in MAP-II
• 27pUC-10 Development of a versatile rotatable fast-scanning probe system for the MAP-II and DiPS divertor simulators
• 24aTB-1 Development of an asymmetric double monochromator in the laser Thomson scattering system for low temperature recombining plasmas in MAP-II
• 20aQE-4 Comparison between Laser Thomson Scattering and He I CR Model Measurements of Helium EIR Plasmas in Divertor Simulator MAP-II
• CORRELATION BETWEEN CLINICAL MANIFESTATION AND ELECTROPHYSIOLOGY OF RECIPROCATING TACHYCARDIA IN PATIENTS WITH WPW SYNDROME : Arrhythmias (II) : FREE COMMUNICATIONS (III) : PROCEEDINGS OF THE 49th ANNUAL SCIENTIFIC MEETING OF THE JAPANESE CIRCULATION SOCI
• CLONING, EXPRESSION, AND CHARACTERIZATION OF ESTROGEN RECEPTOR ALPHA mRNA IN MUMMICHOG, FUNDULUS HETEROCLITUS
• 01pC12P DiPS : A Diversified Plasma Simulator for Divertor and Space Plasma Simulations
• 30aB04 Laser Thomson Scattering Diagnostics for Low Temperature : Recombining Plasmas in Divertor Simulator MAP-II
• Probing of Toroidal Electron Plasmas Confined on Helical Magnetic Surfaces
• Electron Current Measurement of Helical Nonneutral Plasmas for Investigating Plasma Disruption Observed in CHS Experiments
• Electron Loss Cross Sections for a Heavy Ion Beam Probe
• Measurement of 3-D Mode Structure of the Edge Harmonic Oscillations in CHS using Beam Emission Spectroscopy
• Spatial Resolution of the Heavy Ion Beam Probe on LHD
• Observation of Hydrogen and Cesium Spectra in a Negative Ion Source for a Neutral Beam Injector using a Multi-Channel Spectrometer
• 26aEC-6 The First Observation of Off-axis Fishbone-like instabilities in high Ti-plasmas of LHD

もっと見る 閉じる

スポンサーリンク