Apparatus for controlling radiation with a modulated active surface which is sensitive to ionization radiation.

摘要

The invention relates to a radiological system of the mammographic type in which a radiation monitor 22 is provided.
The invention resides in the fact that the entry face of the detector 22 is masked by a strip 23 which absorbs X-radiation except in zones whose variable dimensions are provided in order to adapt to the different shapes of breast. The strip 23 is driven by a motor 24 and stops, under the control of the practitioner, so that the appropriate zone is aligned with the entry face of the detector 22.