06 Jul 2009 Hamamatsu Photonics have expanded their range of semi-conductor detectors featuring photon detection capability with the introduction of the brand new S11028 series multi-pixel photon counter (MPPC). The new device utilizes a Geiger-mode avalanche photodiode structure for ultra-low-level light detection, and a two-stage thermoelectric cooler, which operates down to -20oC and reduces dark count to 1/20 of that at room temperature. The MPPC is easily connected to an external circuit for simple operation and is operated from a low voltage power supply (typically 70 Volts).
The S11028 series, with its active area of 1 mm x 1 mm, is available in three pixel counts (100, 400, or 1600 pixels). Each pixel contains a quenching resistor so that simultaneous photon events can be counted separately and with a high degree of accuracy. The devices feature typical gain values from 250,000 to several million, depending on the specific pixel number. |
