X-ray apparatus

摘要: In order to perform stereoradiography, an X-ray apparatus utilizes tube (2) having a pair of focal points (FR, Fb). The beams alternately irradiated from the toward image intensifier (3) through patient (P) are limited by beam limiting device (10, 11, 12, 13). shapes onto circular detection surface into polygon such as octagon, which looks like approximate circular. irradiation field on can be circumscribed input window (i.e. effective area), preventing going out surface. Thus, direct leaking over is avoidable.