{'fraction_non_alphanumeric': 0.02682403433476395, 'fraction_numerical': 0.027896995708154508, 'mean_word_length': 4.942675159235669, '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}}
Threshold photoelectron spectroscopy in the inner-valence ionization region and photo-double ionization of SF6

The threshold photoelectron (TPE) spectrum of SF6 has been recorded over the photon energy range 25-140 eV using synchrotron radiation and a penetrating-field electron spectrometer. In addition, the photo-double ionization spectrum of SF6 has been obtained over the energy range 30.7-49.3 eV using the threshold photoelectrons coincidence technique. The TPE spectrum in the inner-valence ionization region is found to be significantly different to the conventional photoelectron spectrum in the same binding energy region. Indirect autoionization of neutral Rydberg and shape-resonance states of SF6 dominate the formation of the TPE spectrum. Inner-valence SF6 + ion states appear to play a major role in the formation of the SF6 2+ ion states. The onset of double ionization in SF6 was found to occur at 31.98±0.02 eV.