Patent Number: 7,613,274

Title: Method and system of energy integrating and photon counting using layered photon counting detector

Abstract: A diagnostic imaging system includes an x-ray source that emits a beam of x-ray energy toward an object to be imaged and an energy discriminating (ED) detector that receives the x-ray energy emitted by the x-ray energy source. The ED detector includes a first layer having a first thickness, wherein the first layer comprises a semiconductor configurable to operate in at least an integrating mode and a second layer having a second thickness greater than the first thickness, and configured to receive x-rays that pass through the first layer. The system further includes a data acquisition system (DAS) operably connected to the ED detector and a computer that is operably connected to the DAS. The computer is programmed to identify saturated data in the second layer and substitute the saturated data with non-saturated data from a corresponding pixel in the first layer.

Inventors: Tkaczyk; John Eric (Delanson, NY), Short; Jonathan D. (Saratoga Springs, NY), Du; Yanfeng (Rexford, NY), Li; Wen (Clifton Park, NY), Wu; Xiaoye (Rexford, NY)

Assignee: General Electric Company

International Classification: G01N 23/00 (20060101)

Expiration Date: 1/03/02017