Abstract: Depth diaphragm for an x-ray device, which diaphragm has a plurality of adjustable diaphragm blades (1) for displaying an area being examined, which blades (1) can be moved in such a way that said area being examined can be displayed asymmetrically.

Abstract: Reliable and at the same time simple operation of a plurality of system components using only a single control element is guaranteed by means of the combination of a control lever (10) which can be swiveled manually and a rotational control unit (11) which can be rotated manually. Translatory control motions can be executed intuitively by means of swivel movements (16) of the control lever (10) and rotatory control motions can be executed intuitively by means of rotary movements (14) of the rotational control unit (11). The embodiment of the rotational control unit (11) in the form of a ring element surrounding the control lever (10), which can be can be adjusted by raising or lowering into different operating positions, associated in each case with a specific operating function, is particularly advantageous.

Abstract: An x-ray diagnostic apparatus has an x-ray radiator, a control device connected thereto, a radiation detector and a patient positioning table. A patient weighing device that is connected with the control device to influence parameters for setting the x-ray radiation is associated with the patient positioning table.

Abstract: To protect a digital flat detector, especially a mobile detector, against being damaged by the effect of impact, an automatically triggering device is provided. The automatically triggering device, including an airbag for example, is provided for protection against the effect of external mechanical impact.

Abstract: An X-ray appliance is disclosed including an X-ray emitter, arranged such that it cannot rotate, and a flat detector mounted such that it can rotate. The appliance further includes an upgraded calibration device, by which calibration images are recorded for different rotations of the detector relative to the X-ray emitter, with a complete calibration data record with a gain image and pixel defect map being created for each rotation position of the flat detector.

Abstract: A method is disclosed for operating a flat detector in different dose ranges and at different amplifier levels. A previously measured detector sensitivity is respectively used for the calibration. The detector sensitivity is determined for each amplifier level at a multiplicity of different points in the overall gain-specific dose range. Further, a calibration value of the previously measured neighboring values is used in order to calibrate a measurement image for a predetermined dose.

Abstract: An X-ray detector includes an X-ray converter for conversion of X-ray radiation to light, and a photodiode sensor with an arrangement of two or more photodiode elements for detection of the light produced by the X-ray radiation in the X-ray converter. A nonlinearly absorbent filter is located between the X-ray converter and the photodiode sensor.

Abstract: Method for an x-ray arrangement for compensation of scattered radiation and x-ray apparatus The invention concerns a method for an x-ray arrangement comprising two x-ray systems (1, 2) for compensation of scattered radiation. In addition, the invention concerns an x-ray apparatus with two x-ray systems (1, 2) which respectively comprise an x-ray source (4, 5) and an x-ray detector (5, 7). An x-ray scattered radiation image based on the x-ray radiation (11) scattered on a subject (P) is acquired for at least one of the two x-ray systems (1, 2), given a definite positioning of the x-ray systems (1, 2) relative to one another. The acquired x-ray scattered radiation image is saved and used for subtraction from an x-ray image acquired with the x-ray system (1, 2) in order to compensate for the influence of the scattered radiation originating from the other x-ray system (1, 2) and to achieve an improved image quality.

Abstract: Catheter for examining and for performing interventions in cavities, in particular for medical applications in body cavities or vessels using a device for the improved illumination of the target region, wherein, besides at least one continuous central lumen (2), at least one lumen (4) is provided for receiving a glass fiber (9) in the catheter sheath (3).

Abstract: An X-ray detector includes an X-ray converter for conversion of X-ray radiation to light, and a photodiode sensor with an arrangement of two or more photodiode elements for detection of the light produced by the X-ray radiation in the X-ray converter. A nonlinearly absorbent filter is located between the X-ray converter and the photodiode sensor.

Abstract: An x-ray tube has an anode and an electron emitter from which an electron beam emanates, the electron beam impinging the incident surface of the anode in a focal spot from which a useful x-ray beam emanates. At least in the region of its electron-emitting surface, the electron emitter is formed of an electron-emitting material that has a lower electron affinity than tungsten (a low-temperature emitter). Further, an apertured diaphragm at anode potential is arranged between the electron emitter and the anode and through which the electron beam passes. As electron-emitting material, the electron emitter contains lanthanum hexaboride (LaB.sub.6) or an alloy of the systems iridium/cerium (Ir/Ce) or iridium/lanthanum (Ir/La) systems.