Dual array 3D electron cyclotron emission imaging at ASDEX Upgrade

Journal Article · Sat Nov 15 00:00:00 EST 2014 · Review of Scientific Instruments

DOI:https://doi.org/10.1063/1.4891061· OSTI ID:22308620

Classen, I. G. J.,; Bogomolov, A. V. ^[1]; Domier, C. W.; Luhmann, N. C. ^[2]; Suttrop, W.; Boom, J. E. ^[3]; Tobias, B. J. ^[4]; Donné, A. J. H. ^[1]

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1. FOM-Institute DIFFER, Dutch Institute for Fundamental Energy Research, 3430 BE Nieuwegein (Netherlands)
2. Department of Applied Science, University of California at Davis, Davis, California 95616 (United States)
3. Max-Planck-Institut für Plasmaphysik, Boltzmannstraße 2, 85748 Garching (Germany)
4. Princeton Plasma Physics Laboratory, Princeton, New Jersey 08540 (United States)

In a major upgrade, the (2D) electron cyclotron emission imaging diagnostic (ECEI) at ASDEX Upgrade has been equipped with a second detector array, observing a different toroidal position in the plasma, to enable quasi-3D measurements of the electron temperature. The new system will measure a total of 288 channels, in two 2D arrays, toroidally separated by 40 cm. The two detector arrays observe the plasma through the same vacuum window, both under a slight toroidal angle. The majority of the field lines are observed by both arrays simultaneously, thereby enabling a direct measurement of the 3D properties of plasma instabilities like edge localized mode filaments.

• OSTI ID: 22308620
• Journal Information: Review of Scientific Instruments, Vol. 85, Issue 11; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0034-6748
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
ASDEX TOKAMAK
EDGE LOCALIZED MODES
ELECTRON CYCLOTRON-RESONANCE
ELECTRON TEMPERATURE
EMISSION
PLASMA