公开(公告)号：US20150103973A1

公开(公告)日：2015-04-16

申请号：US14052026

申请日：2013-10-11

Applicant: General Electric Company

Inventor： James Zhengshe Liu ,  Jonathan Edvard Snyder ,  Richard Larry Anderton ,  David Ellis Barker ,  Brian James Grekowicz

IPC: G01T1/208 ,  G01T1/20 ,  G01N23/223 ,  G01N23/02 ,  G01N23/04

CPC classification number: H01L27/14641 ,  A61B6/4208 ,  A61B6/545 ,  G01N23/04 ,  G01T1/17 ,  G01T1/2006 ,  G01T1/2018 ,  G01T1/208 ,  H01L27/146 ,  H01L27/14601 ,  H01L27/14609 ,  H04N5/32 ,  H04N5/355 ,  H04N5/3559 ,  H04N5/3745 ,  H04N5/37452

Abstract: An x-ray system with multiple dynamic range selections. The system including an x-ray source and a detector, wherein the detector includes a scintillator and a pixel. The pixel includes a photodiode and first and second capacitors connectable to the photodiode. The pixel is configured to be switched between a first state where only the first capacitor is connected to the photodiode and a second state where both capacitors are connected to the photodiode. The x-ray source directs x-rays to the detector and a region of interest positioned between the source and detector, the scintillator converts the x-rays to light, and the pixel photodiode converts the light to an electrical charge. The charge is stored in the first capacitor when the pixel is in the first state and in the first and second capacitors when the pixel is in the second state.

Abstract translation: 具有多种动态范围选择的x射线系统。 所述系统包括x射线源和检测器，其中所述检测器包括闪烁体和像素。 像素包括光电二极管和可连接到光电二极管的第一和第二电容器。 像素被配置为在只有第一电容器连接到光电二极管的第一状态和两个电容器连接到光电二极管的第二状态之间切换。 x射线源将x射线引导到检测器和感兴趣的区域位于源极和检测器之间，闪烁体将x射线转换成光，并且像素光电二极管将光转换成电荷。 当像素处于第一状态时，当像素处于第二状态时，电荷被存储在第一电容器中。