{'fraction_non_alphanumeric': 0.021379980563654033, 'fraction_numerical': 0.008746355685131196, 'mean_word_length': 4.628415300546448, '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': 1, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
Small angle neutron scattering at 4.3 MeV from heavy elements

The associated particle technique was employed to produce a collimated beam of 4.3 MeV neutrons from the reaction D(d,n)He. A rotating target assembly permitted the use of thin deuterated polyethylene deuterium targets. The use of a position sensitive detector in the associated particle technique was demonstrated. Data was accumulated by an on-line computer system. The d i f f e r e n t i a l scattering cross section for 4.3 MeV neutrons was measured for scattering samples of uranium, bismuth, and lead over the angular range of 5° to 15°. The data were corrected for the effects of f i n i t e angular resolution, neutron multiple scattering, air scattering, and neutron ine l o r t i c scattering. The experimental scattering cross sections were in agreement with those calculated on the basis of a nuclear optical model interaction plus an electromagnetic Schwinger interaction. No evidence was found to substantiate anamalous cross sections at small angles.