Multi-layer direct conversion computed tomography detector module

Abstract

A computed tomography detector module is presented. The detector module includes a substrate having a topside and a bottom side. Additionally, the detector module includes a plurality of detector layers disposed on the top side of the substrate in a direction that is substantially orthogonal to the substrate, where each of the plurality of detector layers comprises a direct conversion material configured to absorb radiation, and where each of the plurality of detector layers comprises a first side and a second side. Further, the detector module includes a plurality of pixelated anode contacts is disposed on the first side of each of the plurality of detector layers. Also, the detector module includes a common cathode contact is disposed on the second side of each of the plurality of detector layers.

Description

technical field [0001] The present invention relates generally to radiographic detectors for diagnostic imaging, and more particularly to multilayer direct conversion computed tomography (CT) detectors for high throughput imaging using photon counting and energy discrimination. Background technique [0002] Radiographic imaging systems, such as X-rays and computed tomography (CT), have been used to view the interior of objects in real time. Typically, the imaging system includes an x-ray source for emitting x-rays at an object of interest, such as a patient or a piece of luggage. A detection device, such as an array of radiation detectors, is located on the other side of the object and is used to detect X-rays emitted through the object. As will be appreciated, the intensity of the attenuated beam of radiation received at the detector array generally depends on the attenuation of x-rays by the object. Each detector element of the detector array is used to generate an indep...

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