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Timing performance of a digital SiPM prototype measured with a picosecond injection laser

Year: 2025

Type: preprint

Abstract: The DESY digital silicon photomultiplier (dSiPM) is a monolithic detector based on complementary metal-oxide-semiconductor (CMOS) single-photon avalanche diodes (SPADs) and features a fully digital readout. The dSiPM prototype was characterized using a picosecond injection laser. Different contributions to the time resolution from both SPADs and digitization electronics are quantified. The dSiPM achieves a temporal resolution of approximately 50 ps under optimal conditions, while localized charge deposition with the laser revealed in-pixel variations of the time resolution linked to the SPAD layout. Combining fast timing with a pixelated readout, the device is a promising candidate for 4D-tracking detectors and other precision timing applications.

Source: arXiv (Cornell University)

Authors: Rastorguev, Daniil, Diehl, Inge, Hansen, Karsten, King, Finn, Lachnit, Stephan, Spannagel, Simon, Vanat, Tomas, Vignola, Gianpiero

Institutions: University of Wuppertal, Deutsches Elektronen-Synchrotron DESY, University of Bonn

Language: English

Topic: Particle Detector Development and Performance

Subfield: Nuclear and High Energy Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

OpenAlex ID: W4415032154

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