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Analysis of the ITER ECH Waveguide Transmission Line Expansion Unit

Journal Article · · Fusion Science and Technology
 [1];  [1];  [1];  [1];  [1];  [1]
  1. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
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The ITER Electron Cyclotron Heating (ECH) system consists of transmission lines made up of individual sections of evacuated, aluminum, circularly corrugated waveguides. The high-intensity beam of electromagnetic radiation, necessary for plasma heating, heats the waveguides and other components in the transmission lines causing the lines to expand and contract. To maintain the structural integrity and the required straightness in the transmission lines, expansion units have to be incorporated into the ECH transmission line system. Calculations of several models of expansion units have been completed in this paper to evaluate the effect of the design and materials on the functionality of the expansion unit. Finally, models have been evaluated assuming three different expansion ranges and several different materials.
Research Organization:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC05-00OR22725
OSTI ID:
1394150
Journal Information:
Fusion Science and Technology, Journal Name: Fusion Science and Technology Journal Issue: 3 Vol. 72; ISSN 1536-1055
Publisher:
American Nuclear Society
Country of Publication:
United States
Language:
English

References (1)

HE 11 mitre bends and gaps in a circular corrugated waveguide journal October 1994

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Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
ECH
ITER
electron cyclotron heating
expansion unit
waveguide