Patent ID: 7162010
Filing Date: 2007-01-09
Classification: G01T

Abstract:
1. A method for measuring an entrance dose received by an object having a thickness, the method taking into consideration the object's morphology, the entrance dose being delivered by a radiology apparatus of the type comprising an X-ray beam source and a detector for the X-ray beam, the method comprising the steps of: placing the object on a surface between the source and the detector, calculating an attenuation-ratio by determining energy-levels of an X-ray beam leaving the X-ray beam source and arriving at the detector respectively, calculating a distance between the X-ray beam source and the object to obtain a source to object distance, the distance calculation comprising a step of calculating the object's thickness based upon the attenuation-ratio and a step of defining a surface-position of the object, and employing the source to object distance to calculate the entrance dose of the X-ray beam arriving at the object.