Patent ID: 7336766
Filing Date: 2008-02-26
Classification: H01J,H05G

Abstract:
1. An X-ray apparatus having a rotary anode x-ray tube, comprising; an anode target arranged in a vacuum envelope, a rotary body mechanically coupled to the anode target and configured to rotate together with the anode target, and a fixed shaft supporting the rotary body, allowing the rotary body to rotate on a bearing; a stator coil generating a rotating magnetic field for rotating the rotary body of the rotary anode X-ray tube; a drive-power-supply device controlling a drive power to be supplied to the stator coil; a memory unit storing drive conditions of various types of a plurality of X-ray tubes for controlling the drive power to be supplied to the stator coil; and a control unit supplying a lower level drive power than the drive conditions to an X-ray tube to detect a power consumed in the stator coil and determining whether a selected one of the drive conditions stored in the memory unit and a condition of the detected consumed power match or not.