X-RAY IMAGING SYSTEM AND POSITION CALIBRATION METHOD OF THE SAME

Disclosed are an X-ray photographing system and a position calibration method of an X-ray photographing system, which automatically measure a relative position relation among devices configuring the same system and calibrate an error. A medical X-ray photographing system comprises: a photographing device having a sensor and arranged to be movable; a photographing table supporting an object photographed by the photographing and having a plurality of beacons to enable the sensor to recognize a position; a controller for analyzing the position information recognized by the sensor, comparing a position of the photographing device with that of the photographing table and calibrating the position of the photographing device according to a position error; and a driving device for moving the photographing device to a position calibrated by the controller.