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The dynamic behaviour of the electron temperature profile was studied in different phases of the TEXTOR Tokamak discharge. The T e profile evolution was observed during start-up, flat-top and current ramp-down phase. Detailed measurements during sawtooth activity and density limit disruption were obtained. The heat diffusivity chi e was evaluated from heat pulse propagation data. The energy and current quench times were recorded in a density limit disruption after a preceding T e profile contraction.
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Waidmann et al. (1989) studied this question.
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