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Title: Analysis of the ITER LFS Reflectometer Transmission Line System

Abstract

A critical issue in the design of the ITER Low Field Side (LFS) reflectometer is the transmission line (TL) system. A TL connects each launcher to a diagnostic instrument. Each TL will typically consist of ~42 m of corrugated waveguide and up to 10 miter bends. Important issues for the performance of the TL system are mode conversion and reflections. Minimizing mode conversion and reflections in the waveguide are critical to minimizing standing waves and phase errors in the reflectometer-measured phase. The performance of the corrugated waveguide and miter bends is analyzed and recommendations given.

Authors:
 [1];  [1];  [1];  [1];  [1]
  1. ORNL
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1016590
DOE Contract Number:  
DE-AC05-00OR22725
Resource Type:
Journal Article
Journal Name:
Review of Scientific Instruments
Additional Journal Information:
Journal Volume: 81; Journal Issue: 10; Journal ID: ISSN 0034-6748
Country of Publication:
United States
Language:
English

Citation Formats

Hanson, Gregory R, Wilgen, John B, Bigelow, Tim S, Diem, Stephanie J, and Biewer, Theodore M. Analysis of the ITER LFS Reflectometer Transmission Line System. United States: N. p., 2010. Web. doi:10.1063/1.3485086.
Hanson, Gregory R, Wilgen, John B, Bigelow, Tim S, Diem, Stephanie J, & Biewer, Theodore M. Analysis of the ITER LFS Reflectometer Transmission Line System. United States. https://doi.org/10.1063/1.3485086
Hanson, Gregory R, Wilgen, John B, Bigelow, Tim S, Diem, Stephanie J, and Biewer, Theodore M. 2010. "Analysis of the ITER LFS Reflectometer Transmission Line System". United States. https://doi.org/10.1063/1.3485086.
@article{osti_1016590,
title = {Analysis of the ITER LFS Reflectometer Transmission Line System},
author = {Hanson, Gregory R and Wilgen, John B and Bigelow, Tim S and Diem, Stephanie J and Biewer, Theodore M},
abstractNote = {A critical issue in the design of the ITER Low Field Side (LFS) reflectometer is the transmission line (TL) system. A TL connects each launcher to a diagnostic instrument. Each TL will typically consist of ~42 m of corrugated waveguide and up to 10 miter bends. Important issues for the performance of the TL system are mode conversion and reflections. Minimizing mode conversion and reflections in the waveguide are critical to minimizing standing waves and phase errors in the reflectometer-measured phase. The performance of the corrugated waveguide and miter bends is analyzed and recommendations given.},
doi = {10.1063/1.3485086},
url = {https://www.osti.gov/biblio/1016590}, journal = {Review of Scientific Instruments},
issn = {0034-6748},
number = 10,
volume = 81,
place = {United States},
year = {Fri Jan 01 00:00:00 EST 2010},
month = {Fri Jan 01 00:00:00 EST 2010}
}