1. Afterpulse and delayed crosstalk analysis on a STMicroelectronics silicon photomultiplier
- Author
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Delfo Sanfilippo, Ferenc Nagy, B. Carbone, Jozsef Molnar, Massimo Mazzillo, A. Piana, Giorgio Fallica, Lucio Renna, and Giuseppina Valvo
- Subjects
Crosstalk ,Physics ,Nuclear and High Energy Physics ,Silicon photomultiplier ,Optics ,Dynamic range ,business.industry ,business ,Instrumentation - Abstract
Crosstalk and afterpulsing in silicon photomultipliers can strongly limit the photon-counting resolution and dynamic range of the sensors. In this work we present a method and a measurement (as a demonstration) to separate the afterpulse and delayed crosstalk components of the delayed correlated pulses in STMicroelectronics silicon photomultiplier signals. The contribution of delayed crosstalk can be significant since even if one suppresses afterpulses by applying a longer recharge time, the delayed crosstalk component remains unaffected. This was the case for our measurement: 207 ns recharge was long enough to suppress afterpulses (3.3%), while the delayed crosstalk remained large (12.8%).
- Published
- 2014