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CORRELATION ECE MEASUREMENTS OF TURBULENT ELECTRON TEMPERATURE FLUCTUATIONS IN DIII-D

Massachusetts Institute of Technology, Plasma Science and Fusion Center, 175 Albany St. Cambridge, MA 02139, USA

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University of California, Los Angeles, Los Angeles, CA 90095, USA

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University of California, Los Angeles, Los Angeles, CA 90095, USA

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University of California, Los Angeles, Los Angeles, CA 90095, USA

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University of California, Los Angeles, Los Angeles, CA 90095, USA

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University of California, Los Angeles, Los Angeles, CA 90095, USA

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J.C. HILLESHEIM

University of California, Los Angeles, Los Angeles, CA 90095, USA

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University of California, Los Angeles, Los Angeles, CA 90095, USA

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University of California, Los Angeles, Los Angeles, CA 90095, USA

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University of California, San Diego, San Diego, CA 92093, USA

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University of Wisconsin, Madison, Madison, WI 53706, USA

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General Atomics, San Diego, CA 92186-5608, USA

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General Atomics, San Diego, CA 92186-5608, USA

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General Atomics, San Diego, CA 92186-5608, USA

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General Atomics, San Diego, CA 92186-5608, USA

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General Atomics, San Diego, CA 92186-5608, USA

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General Atomics, San Diego, CA 92186-5608, USA

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https://doi.org/10.1142/9789814340274_0022Cited by:1 (Source: Crossref)

Abstract:

This paper describes measurements of long wavelength, turbulent electron temperature fluctuations in the core plasma of the DIII-D tokamak made with a correlation electron cyclotron emission (CECE) radiometer-based diagnostic. Experimental and simulation results indicate that long wavelength electron temperature fluctuations (1) are similar in amplitude and spectrum to density fluctuations, (2) can be associated with both ITG and TEM turbulence, (3) exhibit changes in the relative fluctuation level that correlate with changes in electron thermal transport, and (4) are correlated, but out of phase, with density fluctuations measured simultaneously with reflectometry.

Electron Cyclotron Emission and Electron Cyclotron Resonance Heating (EC-16)

Electron Cyclotron Emission and Electron Cyclotron Resonance Heating (EC-16)

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