Abstract: X-ray equipment in which the X-ray source and X-ray detector can be moved in a simple and uncomplicated manner permits an X-ray picture to be taken only when the X-ray source and X-ray detector are aligned to match one another. This provides the user with information about how this appropriate alignment can be achieved, which helps to avoid failed exposures, and which conforms to radiation hygiene. The X-ray equipment comprises: an evaluation device for determining a suitable trigger setting for an X-ray picture, in which the X-ray source and detector have such positions and alignments that an X-ray picture of the examination object can be taken using the X-ray equipment; a signal device for outputting signals that inform a user how a trigger setting is to be achieved; and a release device for releasing the X-ray equipment for an X-ray picture when the X-ray equipment has a trigger setting.

Abstract: A portable X-ray detector unit comprising a portable, hand-held cassette (10) having a plurality of exposure detection fields (identified by markings (12)) for measuring the level of radiation to which a subject to be imaged is exposed. Automatic exposure control means (26), for terminating radiation supply to the subject (4) when it is determined that the level of exposure exceeds a predetermined threshold, are interpreted in the portable detector unit, and a user-interface (16, 18) is provided to control the exposure detection fields (12) and/or the control means (26).

Abstract: The invention relates to X-ray equipment (1) in which the X-ray source (2) and X-ray detector (4) can be moved in a simple and uncomplicated manner, which permits an X-ray picture to be taken only when the X-ray source (2) and X-ray detector (4) are aligned to match one another, which provides the user with information about how this appropriate alignment can be achieved, which helps to avoid failed exposures, and which conforms to radiation hygiene.

Abstract: There is described an X-ray system having at least one component (12, 2, 31, 32) that is shiftable (moveable) or pivotable along at least one traverse path to at least one predeterminable locking position (Bx). Components of this kind are in particular the moving parts of a stand such as the moving parts of a ceiling stand (1), floor stand or wall stand for an X-ray generator (2, 21), and the X-ray generator (2, 21) that is fastened to the stand in such a way as to be capable of being pivoted and extended or retracted. Such components also include the shiftable (moveable) or pivotable top of a patient table and a film cassette that is displaceably or pivotably mounted in the table or on a wall stand.

Abstract: There is described an X-ray system having at least one component (12, 2, 31, 32) that is shiftable (moveable) or pivotable along at least one traverse path to at least one predeterminable locking position (Bx). Components of this kind are in particular the moving parts of a stand such as the moving parts of a ceiling stand (1), floor stand or wall stand for an X-ray generator (2, 21), and the X-ray generator (2, 21) that is fastened to the stand in such a way as to be capable of being pivoted and extended or retracted. Such components also include the shiftable (moveable) or pivotable top of a patient table and a film cassette that is displaceably or pivotably mounted in the table or on a wall stand.

Abstract: The invention relates to an ionization chamber which includes a plurality of measuring field electrodes (131 . . . 133) which are arranged on a substrate (120) at a distance from one another and are provided with supply leads (134), and at least one electrode (180) which is arranged at a distance from and faces the substrate and emits charge carriers under the influence of X-rays. An insulating layer (140; 190) provided on the supply leads and/or on the electrode, at least at the area of the supply leads, prevents the signals from the ionization chamber from being falsified by the charge carriers incident on the supply leads. The electrically insulating (layers) have such a high X-ray transparency that they are practically not reproduced in an X-ray image.

Abstract: An apparatus, including a photoconductor (1) for converting X-rays into a charge pattern, and a controllable charging device (3, 9) for charging the surface of the photoconductor to a defined potential. The service life of the charging device is prolonged in that there is provided a measuring device for measuring the potential on the surface of the photoconductor and for controlling the charging device in dependence on the potential.

Abstract: An X-ray apparatus, includes a photoconductor for convening X-rays into a charge pattern and a corona charging device for charging the surface of the photoconductor to a defined potential prior to an X-ray exposure. Deposits of dust on the corona charging device, and the associated artefacts in the X-ray image, are avoided in that there is provided a control unit for operating the corona charging device in a charging mode and in a cleaning mode, a first voltage being applied to the corona charging device in the charging mode whereas in the cleaning mode a second voltage is applied thereto which has, at least temporarily, a polarity which opposes that of the first voltage.

Abstract: A luminescent layer is exposed to X-rays or gamma rays and whose luminescence is converted into an electric signal by a photo-electric transducer. Sensitivity variations of the combination formed by the luminescent layer and the transducer are compensated for in that the luminescent layer is repeatedly exposed to an electric field, during which exposure the sensitivity of the luminescent layer and the transducer is measured and stored, a calibration factor of the measuring device is created and changed each time in dependence on the stored sensitivity.