The Exploration of X-ray Dose Distribution: An Automatic Method

Abstract

An apparatus is described which enables X-ray dose distributions in air or in a water phantom to be explored automatically. Apart from its applications in the investigation of routine treatments, the apparatus greatly facilitates the assessment of specialised techniques such as those employing asymmetrical beam filtration. The speed of operation is such that isodose lines can be plotted at the rate of 2·5 to 3·0 cm. per minute, enabling an average set of curves to be obtained in less than two hours. No subsequent paper work is involved.