{'fraction_non_alphanumeric': 0.015988372093023256, 'fraction_numerical': 0.0, 'mean_word_length': 4.838983050847458, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
Study of local electron heat transport on TFTR

The anomalously fast relaxation of the perturbations to the electron temperature profile caused by a sawtooth crash has been studied extensively on TFTR. It is shown that on a short time-scale the heat pulse is not simply diffusive as has been generally assumed, but that modelling of the heat pulse requires a transient enhancement in χe following the sawtooth crash. It is also shown that the time dependent enhancement in χe predicted by non-linear thermal transport models, i.e. incremental chi models or the Rebut-Lallia-Watkins transport model, is much smaller than that required to explain the anomalies in the heat pulse propagation