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Title: High-impedance wire grid method to study spatiotemporal behavior of hot electron clump generated in a plasma

High-impedance Wire Grid (HIWG) detector has been developed to study spatiotemporal behavior of a hot electron clump generated in an electron cyclotron resonance (ECR) plasma. By measuring the floating potentials of the wire electrodes, and generating structure matrix made of geometrical means of the floating potentials, the HIWG detector reconstructs the spatial distribution of high-temperature electron clump at an arbitrary instant of time. Time slices of the spike event in floating potential revealed the growth and decay process of a hot spot occurs in an ECR plasma.
Authors:
; ;  [1] ; ;  [2] ;  [3] ;  [4]
  1. Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, 816-8580 Kasuga, Fukuoka (Japan)
  2. National Institute for Fusion Science, 509-5292 Toki, Gifu (Japan)
  3. Department of Physics, Nagoya University, 464-8602 Nagoya, Aichi (Japan)
  4. College of Industrial Technology, Nihon University, 275-8575 Narashino, Chiba (Japan)
Publication Date:
OSTI Identifier:
22392229
Resource Type:
Journal Article
Resource Relation:
Journal Name: Review of Scientific Instruments; Journal Volume: 85; Journal Issue: 11; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; ELECTRON CYCLOTRON-RESONANCE; ELECTRONS; GRIDS; HOT SPOTS; IMPEDANCE; PLASMA; POTENTIALS; SPATIAL DISTRIBUTION; WIRES