Density profiles in tokamaks from electron cyclotron radiation spectra |
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Authors: | D A Boyd |
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Institution: | (1) Laboratory for Plasma and Fusion Energy Studies, University of Maryland, 20742 College Park, Maryland |
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Abstract: | Measurement of the line shape of optically thick and optically thin lines in the electron cyclotron radiation spectrum emitted by a tokamak plasma may yield both electron temperature and density profiles. Currently temperature profiles are routinely extracted from optically thick lines. Consequently, this paper is addressed to the density profile problem. Algorithms for extracting density profiles are outlined in the case of uncontrolled reflection and controlled reflection of the cyclotron radiation within the tokamak vacuum chamber. |
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Keywords: | density profiles tokamak electron cyclotron emission |
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