|An apparatus for detecting radiation is provided. In embodiments, at
least one sensor medium is provided, of a kind that interacts with
radiation to generate photons and/or charge carriers. The apparatus also
includes at least one electrode arrangement configured to collect
radiation-generated charge from a sensor medium that has been provided.
The apparatus also includes at least one photodetector configured to
produce an electrical output in response to photons generated by
radiation in such a sensor medium, and an electronic circuit configured
to produce an output that is jointly responsive to the collected charge
and to the photodetector output. At least one such electrode arrangement,
at least one such photodetector, and at least one such sensor medium are
combined to form an integral unit.