Patent ID: 6630676
Filing Date: 2003-10-07
Classification: A61B,G01T

Abstract:
An X-ray image taking apparatus comprising:a supporting portion, an X-ray tube attached to one side of the supporting portion, and a plane type radiation detector unit connected to the other side of the supporting portion to be able to face the X-ray tube, said radiation detector unit including; an X-ray converting layer sensitive to X-rays and outputting charge signals corresponding to intensity of incident X-rays, an active matrix board located under the X-ray converting layer and having switching elements arranged in a matrix shape, a gate circuit portion having gate lines electrically connected to the switching elements for sequentially turning on the respective switching elements when signals are read, a reading circuit portion having reading signal lines for reading charge signals accumulated in respective pixels through reading signal lines, a control circuit portion electrically connected to the gate circuit portion and the reading circuit portion for controlling the same, and a rotating shaft disposed on one end side of the unit and rotationally attached to the supporting portion of the image taking apparatus so that the radiation detector unit can face the X-ray tube substantially perpendicularly to receive the X-rays thereon and can be rotated through the rotating shaft not to face the X-ray tube.