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

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

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

Instrumentation and Detectors 2025-05-06 v1

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

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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.

Keywords

digital silicon photomultiplier single-photon avalanche diode timing performance time resolution picosecond laser 4D-tracking

Cite

@article{arxiv.2505.02632,
  title  = {Timing performance of a digital SiPM prototype measured with a picosecond injection laser},
  author = {Daniil Rastorguev and Inge Diehl and Karsten Hansen and Finn King and Stephan Lachnit and Simon Spannagel and Tomas Vanat and Gianpiero Vignola},
  journal= {arXiv preprint arXiv:2505.02632},
  year   = {2025}
}

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

Abstract

Keywords

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