Patent ID: 6549609
Filing Date: 2003-04-15
Classification: A61B

Abstract:
An X-ray apparatus, comprising:an X-ray tube; a solid state flat detector opposing said X-ray tube across a patient being examined, the patient defining a body axis; an X-ray limiting device for limiting X-rays from said X-ray tube; a driver for rotating said X-ray tube and said X-ray limiting device about a stationary axis disposed above the patient and extending parallel to the body axis, wherein the driver rotates said X-ray tube and said X-ray limiting device in an arc defining a plane oriented perpendicularly to the body axis; an edge detector for detecting x-rays irradiated onto an edge part of said solid state flat detector; a controller for receiving a signal from said edge detector and controlling, with said signal, said X-ray limiting device so that X-rays do not go outside of said solid state flat detector.