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AssigneeSiemens Aktiengesellschaft
InventorManfred Pfeiler
Estimating the term…
In an exemplary embodiment, a radiation detector for receiving the radiation emerging from the radiography subject delivers electrical output signals corresponding to the received radiation profile, generating a relative movement between the support device and the radiation beam, and with a measurand converter and a video unit for the formation of the X-ray shadow image. The radiation detector is an X-ray image intensifier with an outlet-connected television camera. A cancellation device is present which cancels the formation in the target region which is disposed immediately before the line image in the direction of movement of the line image, generated by the X-ray beam, on the target. The effect of the stray radiation on the image quality is thereby eliminated.
A diagnostic radiology system comprising a radiographic unit having a support for a radiography subject, having an X-ray tube, which emits a fan-shaped radiation beam, having a radiation detector for receiving the radiation emerging from the radiography subject, which radiation detector delivers electric output signals corresponding to the received radiation profile, having means for generating relative movement between the support for the radiography subject and the radiation beam over an excursion range, and having a measurand converter which, from the detector output signals, determines the X-ray shadow image corresponding to the excursion range and provides an output for effecting display of such image, characterized in that the radiation detector (5, 6) is of the electrostatic memory type for electrostatically storing signals in accordance with the received radiation, and that a canceling device is present which cancels the stored signals in the memory area which, in the direction of movement of the line image formed by the X-ray beam (3), are disposed before the line image.
Dependencies are inferred from the claim text.