Title

Upper Limit on Turbulent Electron Temperature Fluctuations in the Core of Alcator C-Mod

Document Type

Article

Publication Date

9-1-2004

Department

Chemistry and Biochemistry

Abstract

Electron cyclotron emission correlation radiometry is used to measure the local turbulent electron temperature fluctuations in the plasma core of the Alcator C-Mod tokamak. Using standard analysis techniques, we see no evidence of the broadband fluctuations seen in other devices. From an analysis of the diagnostic resolution, coupled with these data, we can place an upper limit on the measurable fluctuation amplitude and set bounds for the wave number spectrum required for the electrostatic turbulence model of anomalous heat flux to be valid.

Publication Title

Nuclear Fusion

Volume

44

Issue

9

First Page

987

Last Page

991

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