Experimental method to obtain scattering contribution in portal dose images
Abstract
A method for evaluating scattered dose contribution in portal images acquired under clinical conditions (phantom-device distance of 30 cm) is presented. This method is based on radiographic film and ionisation chamber measurements and is valid for homogenecus polystyrene phantoms and square fields of different size. The portal imaging device consisted of a radiographic film placed between slabs of polystyrene under full build-up conditions (1.5...
Paper Details
Title
Experimental method to obtain scattering contribution in portal dose images
Published Date
Jan 1, 2005
Journal
Volume
21
Issue
1
Pages
31 - 40
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