{'fraction_non_alphanumeric': 0.019696969696969695, 'fraction_numerical': 0.02727272727272727, 'mean_word_length': 5.064220183486238, '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}}
Profile of Akira Tonomura.

One of the most useful scientific instruments of the 20th century, the electron microscope, continues to be used worldwide to examine the atomic world. The first transmission electron microscopes were developed in the 1930s and began seeing institutional use in the 1940s. In the 1970s, the microscope was developed further into a device that could record not just the intensity of the electrons, but their phase as well, by using coherent field-emission electron beams. Physicist Akira Tonomura, elected to the National Academy of Sciences in 2000 as a Foreign Associate, was responsible for much of this technological development.