Shoe-Fitting Fluoroscope - "According to Williams (1949), the machines generally employed a 50 kv x-ray tube operating at 3 to 8 milliamps. When you put your feet in a shoe fitting fluoroscope, you were effectively standing on top of the x-ray tube. The only “shielding” between your feet and the tube was a one mm thick aluminum filter. Some units allowed the operator to select one of three different intensities: the highest intensity for men, the middle one for women and the lowest for children."
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