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Experimental setup for measurement of attenuation of scattered radiation. “X” marks the location of the x-ray tube focal spot. The circular object in the enclosure is the 180 cm3 ionization chamber, the oblong object is the 1800 cm3 ionization chamber. Distances: A = 70, B = 47, C = 40 cm. “C” represents the distance from the phantom to the lead or garment being tested.
