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Title: Validation experiment of a numerically processed millimeter-wave interferometer in a laboratory

We propose a new interferometer system for density profile measurements. This system produces multiple measurement chords by a leaky-wave antenna driven by multiple frequency inputs. The proposed system was validated in laboratory evaluation experiments. We confirmed that the interferometer generates a clear image of a Teflon plate as well as the phase shift corresponding to the plate thickness. In another experiment, we confirmed that quasi-optical mirrors can produce multiple measurement chords; however, the finite spot size of the probe beam degrades the sharpness of the resulting image.
Authors:
; ;  [1] ;  [2] ; ;  [3] ; ;  [4] ;  [5]
  1. Department of Information Electronics, Fukuoka Institute of Technology, Fukuoka 811-0295 (Japan)
  2. Art, Science and Technology Center for Cooperative Research, Kyushu University, Kasuga, Fukuoka 816-0811 (Japan)
  3. Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577 (Japan)
  4. National Institute for Fusion Science, Toki, Gifu 509-5202 (Japan)
  5. Tokyo University of Agriculture and Technology, Koganei, Tokyo 184-8588 (Japan)
Publication Date:
OSTI Identifier:
22303686
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; ANTENNAS; DENSITY; INTERFEROMETERS; MIRRORS; NUMERICAL ANALYSIS; PLATES; TEFLON; THICKNESS; VALIDATION