Zusammenfassung
Geiger-mode avalanche photodiodes (APD) or photon counting detectors
(PCD) have become the basis of a range of new detectors and applications.
Such devices are sensitive to single photons and are being adapted
to create different detector technologies such as the silicon photomultiplier
(SPM). A silicon photomultiplier, so-called because of its similarity
in performance to conventional photomultiplier tubes, is based on
an array of photon counting detectors but with a single common output.
While the silicon photomultiplier does not provide positional information,
it does allow photon number resolution and photon counting at higher
count rates than are achievable with a solitary PCD. These new detectors
are enabling a range of new applications in the fields of medicine,
biology, high-energy physics and space exploration. In this paper
we report the performance of PCD with dimensions ranging from 20
μm × 20 μm to 200 μm × 200 μm and on 1 mm<sup>2</sup> silicon
photomultipliers and illustrate the use of an SPM in single photon
counting mode.
Nutzer