Spatial Distribution of Dose in Computed Tomography with Special Reference to Thin-Slice Techniques
Abstract
The spatial dose distribution in a cylindrical polystyrene phantom with a diameter of 200 mm was measured for seven computed tomography (CT) scanners. The measurements were performed in the head mode and mainly for narrow slices in the range 1.5 to 4 mm. Both radial and axial dose profiles were measured and the dose distribution for multiple-scan procedures was calculated. The ratio between the surface and centre doses for a single scan varied...
Paper Details
Title
Spatial Distribution of Dose in Computed Tomography with Special Reference to Thin-Slice Techniques
Published Date
Nov 1, 1987
Journal
Volume
28
Issue
6
Pages
771 - 777
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