{'fraction_non_alphanumeric': 0.04914933837429111, 'fraction_numerical': 0.07939508506616257, 'mean_word_length': 5.0227272727272725, '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}}
Hyperfine Structure of the 47R(9-2), 48P(11-3) and 48R(15-5) Lines of 127I2 at 612 nm as Secondary Standards of Optical Frequency

A spectroscopic study of the 47R(9-2), 48P(11-3) and 48R(15-5) lines of the B-X electronic transition 127I2 iodine molecule at 612 nm was undertaken using a continuous-wave tunable dye laser. The uncertainty in the frequency interval measurements between the hyperfine components, of a few kHz, allows determination of the differences between constants of the four principal hyperfine interactions.