Advancements in electron cyclotron emission imaging demonstrated by the TEXTOR ECEI diagnostic upgrade
- University of California at Davis, Davis, California 95616 (United States)
- Association EURATOM-FOM, FOM Institute for Plasma Physics Rijnhuizen, Trilateral Euregio Cluster, 3430 BE Nieuwegein (Netherlands)
- Pohang University of Science and Technology, Pohang, Gyeongbuk 790-784 (Korea, Republic of)
- University of Colorado at Boulder, Boulder, Colorado 80309 (United States)
A new TEXTOR electron cyclotron emission imaging system has been developed and employed, providing a diagnostic with new features and enhanced capabilities when compared to the legacy system it replaces. Optical coupling to the plasma has been completely redesigned, making use of new minilens arrays for reduced optical aberration and providing the new feature of vertical zoom, whereby the vertical coverage is now remotely adjustable on a shot-by-shot basis from 20-35 cm. Other innovations, such as the implementation of stacked quasioptical planar notch filters, allow for the diagnostic to be operated without interruption or degradation in performance during electron cyclotron resonance heating. Successful commissioning of the new diagnostic and a demonstration of the improved capabilities are presented in this paper, along with a discussion of the new technologies employed.
- OSTI ID:
- 22051038
- Journal Information:
- Review of Scientific Instruments, Vol. 80, Issue 9; Other Information: (c) 2009 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0034-6748
- Country of Publication:
- United States
- Language:
- English
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