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Descriptions of a linear device developed for research on advanced plasma imaging and dynamics

Rev. Sci. Instrum. 80, 103503 (2009); doi:10.1063/1.3239405

Published 7 October 2009

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J. Chung,1 K. D. Lee,1 D. C. Seo,1 Y. U. Nam,1 W. H. Ko,1 J. H. Lee,1 and M. C. Choi2
1National Fusion Research Institute, Gwahangno 113, Daejeon 305-333, Korea
2Korea Basic Science Institute, 804-1 Ochang, Cheongwon 363-883, Korea
The research on advanced plasma imaging and dynamics (RAPID) device is a newly developed linear electron cyclotron resonance (ECR) plasma device. It has a variety of axial magnetic field profiles provided by eight water-cooled magnetic coils and two dc power supplies. The positions of the magnetic coils are freely adjustable along the axial direction and the power supplies can be operated with many combinations of electrical wiring to the coils. A 6 kW 2.45 GHz magnetron is used to produce steady-state ECR plasmas with central magnetic fields of 875 and/or 437.5 G (second harmonic). The cylindrical stainless steel vacuum chamber is 300 mm in diameter and 750 mm in length and has eight radial and ten axial ports including 6-in. and 8-in. viewing windows for heating and diagnostics. Experimental observation of ECR plasma heating has been recently carried out during the initial plasma operation. The main diagnostic systems including a 94 GHz heterodyne interferometer, a high-resolution 25 channel one-dimensional array spectrometer, a single channel survey spectrometer, and an electric probe have been also prepared. The RAPID device is a flexible simulator for the understanding of tokamak edge plasma physics and new diagnostic system development. In this work, we describe the RAPID device and initial operation results. ©2009 American Institute of Physics
History: Received 30 June 2009; accepted 8 September 2009; published 7 October 2009
Permalink: http://link.aip.org/link/?RSINAK/80/103503/1
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KEYWORDS and PACS

Keywords
PACS
  • 52.75.-d
    Plasma devices
  • 52.50.Qt
    Plasma heating by radio-frequency fields
  • 52.55.Fa
    Tokamaks
  • 52.40.Hf
    Plasma-material interactions; boundary layer effects
  • YEAR: 2009

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ISSN:
0034-6748 (print)   1089-7623 (online)
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REFERENCES (11)
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