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An absorbed dose due to examination on the VolumeScope x-ray device

An absorbed dose in a patient due to an X-ray examination by the VôlumeScope Compton scatter tomographic scanner was calculated and measured. The calculation model takes into account the energy spectrum of incident photons, the attenuation of primary and scattered radiation in the surrounding medium, multiple scattering and detector/collimator efficiency. The measurements were performed in various parts of a tissue-equivalent human phantom by LiF thermoluminescent detectors. Typical measured dose per examination was 1-3 mGy, the calculated dose was 1.95-2.2 mGy.