Patent ID: 9724052
Date: 2017-08-08
CPC Classifications: A61B

Claim:
1. A collimator controller configured to select, from at least two different collimator settings, a collimator setting for an x-ray imager to acquire an image of an object whilst a person is present at a position around said object, each setting defining i) a target volume of the object to be irradiated by a beam of primary radiation generated by an x-ray source of said imager and ii) a non-target volume of the object not to be irradiated by said primary radiation beam or to be irradiated at lesser intensity than the target volume, the controller's selection biased for the one of the at least two settings that results in a lower secondary radiation dosage for the person that is produced by the interaction of the target volume with the primary radiation, if each of the at least two collimator settings cause about the same dosage for the object when so irradiated, the controller further including a detection unit configured to detect the position of the person relative to the object.