Journal of Medical Physics
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Year : 1989  |  Volume : 14  |  Issue : 2  |  Page : 21-28

A Comparison Of The Radiation Dose To The Lens Of The Eye From Four Modern C.T. Scanners

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L H Sim

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A series of measurements of absorbed radiation dose to the lens of the eye, given during certain C.T. examinations was performed. Results obtained demonstrate the variation of dose with technique employed. Four current generation C.T. scanners installed in and around Brisbane were examined in this study. Measurements were made using a small waterproof ionization chamber and a purpose built phantom. The study was undertaken to determine the level of radiation dose delivered to the lens of the eye during certain routine C.T. examinations (i.e. axial orbit) with normally used scanning parameters on a variety of current generation C.T. scanners.

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