The invention relates to an arrangement with light-sensitive or X-ray-sensitive
sensors which are arranged in rows and columns of a matrix and generate charges
in dependence on the amount of incident radiation, each sensor including a photosensor
element with an intrinsic storage capacitor and/or a storage capacitor connected
parallel to its terminals, and also a respective transistor; it also includes at
least one switching line for each row of sensors via which the transistors can
be activated so that the charges of the relevant activated sensors S can be read
out simultaneously via read-out lines 8 in order to ensure that, in conformity
with the relevant mode of operation of the arrangement, the switching noise caused
by the reading out of the sensors is reduced and/or a higher image repeat rate
or more stable operating conditions for the photosensor element, also in the case
of large signals, as well as an increase of the dynamic range of the photosensor
element become possible in that each sensor S includes a further transistor 5
which is connected directly to the photosensor element 1 and can be
activated via at least one control line, both transistors 3, 5 of each sensor
S being connected in series and an electrode of a further capacitor 4 being
connected to the junction of the two transistors 3, 5.
