| 摘要 |
PROBLEM TO BE SOLVED: To provide an X-ray detector and an X-ray CT apparatus for improving X-ray utilization efficiency while leaving a gap existing between two-dimensionally arrayed solid-state detectors. SOLUTION: A scintillator 41 has a parallelepiped structure in which an upper surface (a) and a lower surface c are shifted in a channel direction by a size d<SB>1</SB>exceeding the width l<SB>1</SB>and an X-ray insensitive region when viewed from the incidence direction of X-rays is eliminated. Thus, the utilization efficiency of X-rays is improved and X-ray detection sensitivity and the image quality of tomographic images to be imaged are improved as a result. COPYRIGHT: (C)2007,JPO&INPIT |
