| 摘要 |
The invention relates to an X-ray device having an X-ray radiation source ( 7 ), a collimator ( 6 ) and an X-ray detector ( 4 ). The reduction in the radiation dose to which a patient ( 5 ) is exposed, said reduction being generated by the collimator ( 6 ), is calculated by a data processing unit ( 2 ) from the current setting of the shield and filter elements of the collimator ( 6 ) and displayed on a display unit ( 3 ), for example, as an area shielding factor AA and/or a dose reduction factor DRF. The user can in this way detect the potential of the collimator that still exists for image improvement and for minimizing the exposure to radiation.
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