Published February 2009 | Version v1
Report Metadata-only

Analysis of propagating mode contents in the corrugated waveguides of ECH system for precise alignment

Creators

  • 1. National Inst. for Fusion Science, Toki, Gifu (Japan)
  • 2. Kyushu Univ., Research Inst. for Applied Mechanics, Fukuoka (Japan)
  • 3. Plasma Science and Fusion Center, Massachusetts Inst. of Technology, Cambridge, MA (United States)

Description

A new method is proposed to analyze mode contents of high power electromagnetic waves that are propagating through corrugated waveguides in the electron cyclotron resonance heating (ECH) system for nuclear fusion devices. The method was applied to a 168GHz transmission line of the ECH system in Large Helical Device (LHD) to evaluate the waveguide alignment. Mode contents of the propagating wave could be well analyzed using this method. Furthermore, the wave field in the waveguide was reconstructed using the obtained information of the each mode content. (author)

Part of:
ITC18: 18th international Toki conference. Development of physics and technology of stellarators/heliotrons 'en route to DEMO'. Proceedings

Additional details

Publishing Information

Imprint Title
ITC18: 18th international Toki conference. Development of physics and technology of stellarators/heliotrons 'en route to DEMO'. Proceedings
Imprint Pagination
523 p.
Journal Page Range
p. 301-304
Report number
NIFS-PROC--78

Conference

Title
18. international Toki conference on development of physics and technology of stellarators/heliotrons 'en route to DEMO'
Acronym
ITC18
Dates
9-12 Dec 2008
Place
Toki, Gifu (Japan)

INIS

Country of Publication
Japan
Country of Input or Organization
Japan
INIS RN
42019061
Subject category
S70: PLASMA PHYSICS AND FUSION TECHNOLOGY;
Resource subtype / Literary indicator
Conference
Descriptors DEI
ALIGNMENT; AMPLITUDES; ECR HEATING; ELECTRON CYCLOTRON-RESONANCE; GHZ RANGE 100-1000; LHD DEVICE; MICROWAVE AMPLIFIERS; NORMAL-MODE ANALYSIS; POWER TRANSMISSION LINES; WAVE PROPAGATION; WAVEGUIDES
Descriptors DEC
AMPLIFIERS; CLOSED PLASMA DEVICES; CYCLOTRON RESONANCE; ELECTRONIC EQUIPMENT; EQUIPMENT; FREQUENCY RANGE; GHZ RANGE; HEATING; HIGH-FREQUENCY HEATING; MICROWAVE EQUIPMENT; PLASMA HEATING; RESONANCE; THERMONUCLEAR DEVICES

Optional Information

Notes
5 refs., 5 figs.