Abstract: An X-ray source is mounted in an enclosure for angulating longitudinally about a horizontal axis. An X-ray permeable patient supporting table is mounted on the top of the enclosure for executing lateral and longitudinal movements. An X-ray image receiving device such as an X-ray image intensifier is mounted above the table on a vertically movable arm which is on a longitudinally movable carriage. Electric control means are provided for angulating the X-ray source and image intensifier synchronously as the image intensifier system is shifted longitudinally or vertically such that the central ray from the X-ray source is kept perpendicular to the image input plane of the image intensifier.