PLANAR IMAGE DETECTOR FOR ELECTROMAGNETIC RAYS PARTICULARLY X-RAYS

摘要

The invention is directed to a planar image detector (5) for electromagnetic rays (3) for viewing an examination subject that comprises an active surface on a substrate (20) having a matrix (12) of radiation-sensitive pixel elements for imaging, whereby a radiation-sensitive sensor (24) for generating control signals for an exposu re control (28) is arranged immediately next to the active area within the rays (3) attenuat ed by the examination subject (4).