Analysis of the ITER LFS Reflectometer Transmission Line System

Journal Article · Fri Jan 01 04:00:00 EST 2010 · Review of Scientific Instruments

DOI:https://doi.org/10.1063/1.3485086· OSTI ID:1016590

Hanson, Gregory R ^[1]; Wilgen, John B ^[1]; Bigelow, Tim S ^[1]; Diem, Stephanie J ^[1]; Biewer, Theodore M ^[1]

---

1. ORNL

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.

• Research Organization: Oak Ridge National Laboratory (ORNL)
• Sponsoring Organization: SC USDOE - Office of Science (SC)
• DOE Contract Number: AC05-00OR22725
• OSTI ID: 1016590
• Journal Information: Review of Scientific Instruments, Journal Name: Review of Scientific Instruments Journal Issue: 10 Vol. 81; ISSN 0034-6748
• Country of Publication: United States
• Language: English