Patent ID: 6375354
Filing Date: 2002-04-23
Classification: A61B

Abstract:
A method for determining a variable lateral center-to-center setpoint for a digital imaging system having a digital detector and a radiation source, the method comprising:providing the detector at a first detector position, the detector having a detector lateral centerline; positioning the radiation source at a first source position along a source longitudinal axis; generating a first radiation field with the radiation source, the first radiation field being detectable by the detector; detecting the first radiation field at the detector; determining a first lateral centerline of the first radiation field; positioning the radiation source at a second source position, the second source position being laterally displaced from the first source position; generating a second radiation field with the radiation source, the second radiation field being detectable by the detector; detecting the second radiation field at the detector; determining a second lateral centerline of the second radiation field; and determining a lateral gain constant based on the determined first and second lateral centerlines and the first and second source positions.