{'fraction_non_alphanumeric': 0.02287581699346405, 'fraction_numerical': 0.002178649237472767, 'mean_word_length': 5.126666666666667, '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}}
Effect of hydrogenous shields on the average energy of neutron spectra

In a previous work, the authors and colleagues studied problems of photoneutron transport in concrete rooms using the Monte Carlo transport program, MORSE and supporting experimental measurements. From this work, an empirical method of calculation was developed based on the average energy, anti E, of the neutron spectrum. Using this method, it is possible to calculate the effect of metal shielding and also scattering inside a concrete room based on anti E, and to provide a suitable conversion factor for converting fluence to either dose equivalent or to absorbed dose. For subsequent shielding, TVL's for polyethylene or concrete were given for two different geometries, one from the accelerator moderated by a heavy metal (sphere geometry) and the other from these same spectra modified by room scattering (long geometry). 3 refs., 4 figs.