Large-Aperture Broadband Polarization Rotator for the KSTAR ECE Imaging System
SCIE
SCOPUS
- Title
- Large-Aperture Broadband Polarization Rotator for the KSTAR ECE Imaging System
- Authors
- Jaehyun Lee; Gunsu Yun; Minwoo Kim; Woochang Lee; Park, HK
- Date Issued
- 2012-01
- Publisher
- IOP Publishing
- Abstract
- The electron cyclotron emission (ECE) imaging system installed in the KSTAR tokamak has been designed for 2D electron temperature measurement based on the X-mode 2nd harmonic ECE radiation at a magnetic field similar to 2 T. For operation at higher magnetic fields (similar to 3-3.5 T) in the future, the frequency of the X-mode 2nd harmonic ECE (> 170 GHz) exceeds the detectable range of the system. Instead of extending the detector frequency range, large-aperture half-wave plates for polarization rotation have been developed to utilize the O-mode fundamental ECE, which is within the detectable range (similar to 65-135 GHz) of the present system.
- Keywords
- Radiation and optical windows; Plasma diagnostics - interferometry, spectroscopy and imaging
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/15620
- DOI
- 10.1088/1748-0221/7/01/C01037
- ISSN
- 1748-0221
- Article Type
- Article
- Citation
- JOURNAL OF INSTRUMENTATION, vol. 7, no. 1, page. C01037, 2012-01
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- There are no files associated with this item.
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