Collimators in CT scanning are used to do all of the following EXCEPT

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The collimator must be in perfect alignment with the tube and detector array to optimize the beam location.CT scanners therefore use collimators to protect the patient and limit the beam to the size of the detector array that is active during data acquisition.Prepatient collimators restrict the width and shape the beam to the area of interest for a single rotation of the tube and detectors around the patient.Postpatient collimators, if present, reduce the scattered x-rays from entering the detector array, which would reduce the image contrast.These detector collimators also define the slice thickness,

Collimators in CT Scanning Are Used to Do All of the Following