Abstract: This invention discloses an X-ray photography device having an X-ray tube associated with a primary diaphragm for defining or limiting the X-ray beam by partially blocking the same. The X-ray tube is mounted or carried in such a fashion that the beam can be directed at random towards any desired target. The device further includes a film cassette constituting a desired target which is similarly freely movable at random independently of the X-ray tube. Means are provided to accurately align the X-ray beam and target and to insure proper target coverage by the beam.

Abstract: An X-ray diagnostic apparatus including an automatic exposure timer which measures the X-radiation dosage on a film during the exposure or X-raying of an object, and automatically interrupts the exposure when a predetermined dosage has been reached; including a programming arrangement in which the exposure data for example, the X-ray tube voltage, the initial emission current and the darkening of the film, are manually adjustable in an organ-programmed manner dependent upon the portion of a patient's body which is being X-rayed; and including a time control circuit by means of which the emission current is reduced during an exposure.