{'fraction_non_alphanumeric': 0.026124818577648767, 'fraction_numerical': 0.001451378809869376, 'mean_word_length': 4.948275862068965, '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}}
Thermal equilibria of detached plasmas and density limits

A theoretical investigation of the thermal equilibria of detached plasmas has been performed. The transport model used is that for the ηe modes. The model explains the scaling of the plasma radius, central electron temperature, impurity radiation, electron energy confinement time with plasma current and central density as observed on TFTR. Furthermore, assuming that the plasma disrupts when the safety factor reaches two at the edge of the detached plasma, a density limit ncr is obtained. For the impurity density nI independent of the plasma density, whereas for nI = fn(0), where f is the fraction of impurities, ncr ∝ BT/R.