{'fraction_non_alphanumeric': 0.0189873417721519, 'fraction_numerical': 0.008438818565400843, 'mean_word_length': 4.894409937888199, '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}}
Laser methods for generating megavolt terahertz pulses

the lack of understanding of the mechanism responsible for the production of inversion between vibrational levels in a gas discharge. The situation became clear with the emergence of a paper by N N Sobolev and V V Sokovikov [21] and Ref. [22] that followed. The authors compared data on the average electron energy in the discharge with the energy dependence of the excitation cross section for the corresponding molecular vibrational levels and saw that the electron impact mechanism is highly efficient. In this case, the inversion between vibrational levels is produced due to collisions with atoms and molecules. When these papers appeared, a start was made on a targeted theoretical description of the CO2 laser and a new impetus was given to experiments aimed at its improvement. Notably, the USSR's first CO2 gas-dynamic laser was put into operation in the framework of this work [23].