Patent ID: 7697659

Claim:
A radiographic imaging system comprising: a radiation source to project radiographic energy toward a subject to be scanned; a detector assembly configured to receive radiographic energy from the radiation source and attenuated by the subject, the detector assembly comprising: a plurality of direct conversion detectors configured to convert the received radiographic energy to electrical signals representative of energy sensitive radiographic data, the plurality of direct conversion detectors comprising: a first direct conversion detector having a first thickness and a first set of electrical contacts attached thereto, each electrical contact of the first set of electrical contacts having a first surface area; a second direct conversion detector having a second thickness different from the first thickness and positioned to receive radiographic energy passing through the first direct conversion detector, the second direct conversion detector having a second set of electrical contacts attached thereto, each electrical contact of the second set of electrical contacts having a second surface area different from the first surface area; a data acquisition system (DAS) coupled to the first and second sets of electrical contacts and configured to receive the electrical signals therefrom; and an image reconstructor connected to the DAS and configured to reconstruct an image of the subject from the electrical signals received by the DAS; wherein the DAS is configured to recognize saturated data from the electrical signals of one of the first and second sets of electrical contacts and input the recognized saturated data to a self-correctability algorithm to correct the saturated data using unsaturated data from the other of the first and second sets of electrical contacts.