title: The dependence of the scattered radiation dose to personnel on technique factors in diagnostic radiology.
abstract: The measurement and prediction of scattered radiation dose to staff in diagnostic radiology is particularly important, owing to the increased use and complexity of interventional radiology. The air kerma-area product and scattered radiation dose in the vicinity of the patient couch, for both overcouch and undercouch X-ray tube geometries, were simultaneously monitored. The scattered radiation distribution at the couchside was deduced at a range of tube potentials for both overcouch and undercouch X-ray tube geometries. The variation of scattered radiation with field size on both geometries was investigated, as well as the variation with focus-table distance on an overcouch tube geometry. It was discovered that the scattered radiation dose at a point correlated with the air kerma-area product and the result may be used for radiation protection purposes. A method of predicting the scattered radiation dose at a given position is described.
authors: Regional Medical Physics Department, Newcastle General Hospital, Newcastle-Upon-Tyne, UK.
authors: N W
authors: NW
authors: Marshall
authors: K
authors: K
authors: Faulkner
mesh_terms: D006801:Humans; D008961:Models, Structural; D016273:Occupational Exposure; D011829:Radiation Dosage; D015641:Radiography, Interventional / Q000295:instrumentation; D012542:Scattering, Radiation; D012867:Skin / Q000528:radiation effects; D014965:X-Rays