Dual array ECEI instrument for imaging and visualization of MHD and microturbulence phenomena on the DIII-D tokamak

B.J Tobias,X Kong,M Johnson,H.K Park,R.M Nazikian,C.W Domier,M Smith,N.C Luhmann

doi:10.1109/plasma.2009.5227714

Dual array ECEI instrument for imaging and visualization of MHD and microturbulence phenomena on the DIII-D tokamak

B.J Tobias, X Kong + Show 6 more

https://doi.org/10.1109/plasma.2009.5227714

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Publication Date: Jun 1, 2009

Affiliation: University of California, Davis, Pohang University of Science and Technology

#Electron Cyclotron Emission ) Imaging #Electron Cyclotron Emission + Show 8 more

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Abstract

An innovative, dual array electron cyclotron emission (ECE) imaging (ECEI) instrument is under construction for use on the DIII-D tokamak. ECEI is a passive radiometric imaging diagnostic technique in which broadband ECE radiation is collected by a 1-D imaging array to generate 2-D localized, time-resolved electron temperature Te images.1,2 Translatable optics allow each array to independently focus on different portions of the DIII-D plasma, forming 20 (v) × 8 (h) = 128 channel images of Te profiles and fluctuations.

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