{'fraction_non_alphanumeric': 0.030066815144766147, 'fraction_numerical': 0.0200445434298441, 'mean_word_length': 4.837662337662338, '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}}
The Use of "Effective" Energy to Calculate Absorbed Dose

The absorbed dose in water, aluminium and copper is calculated from photon spectra, as well as from their corresponding single effective energies, for eight photon spectra with peak energies from 45 to 105 kv. The ratio of "effective energy dose" to "spectrum dose", which should be 1.00 if the single effective energy is equivalent to the spectrum, is then re-evaluated as each photon spectrum is hardened theoretically. For water the ratio of absorbed doses remains very close to 1.00; for aluminium and copper it deviates by as much as +16% and +22% respectively. It is shown that filtrations producing ratios of effective energy to peak energy greater than 0.7 are necessary to obtain an accuracy better than 5%. Dose distributions near an aluminium/water interface calculated for photon spectra and effective energy are also presented.