ROENTGENFERNSEHANLAGE ZUR DURCHLEUCHTUNG EINES UNTERSUCHUNGSOBJEKTES.

摘要

The x-ray system has an x-ray tube (2) and an aperture stop (3) on one side of the patient (1) and an x-ray image amplifier (5) coupled to a television camera (7) on the opposite side. The television camera is coupled to the display monitor (13) via an image store (8) and a video processor (12) or directly. The aperture stop uses a member of adjustable stop plates 4a, 4b, 4c, 4d) each cooperating with a respective position sensor (19a, 19b, 19c, 19d) supplying a signal representing its position relative to the x-ray beam to the video processor (12). This allows the corresponding position to be marked on the display screen.