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phantom


The phantom is constructed of proprietary tissue equivalent epoxy materials. Linear attenuations [?] of the simulated tissues are within 1% of actual attenuation for bone and water from 50 keV to 15 MeV. It’s circular in shape and approximates the size of an average patient. Tissue equivalent interchangeable rod inserts for ionization chambers allow for point dose measurements in multiple planes in the phantom and film calibration.