%0 Journal Article
%A King, Finn
%A Diehl, Inge
%A Feyens, Ono
%A Gregor, Ingrid-Maria
%A Hansen, Karsten
%A Lachnit, Stephan
%A Poblotzki, Frauke
%A Rastorguev, Daniil
%A Spannagel, Simon
%A Vanat, Tomas
%A Vignola, Gianpiero
%T Test Beam Characterization of a Digital Silicon Photomultiplier
%J Nuclear instruments & methods in physics research / Section A
%V 1081
%@ 0167-5087
%C [Amsterdam]
%I Elsevier
%M PUBDB-2024-07022
%P 170874
%D 2025
%X Conventional silicon photomultipliers (SiPMs) are well established as light detectors with single-photon-detection capability and used throughout high energy physics, medical, and commercial applications. The possibility to produce single photon avalanche diodes (SPADs) in commercial CMOS processes creates the opportunity to combine a matrix of SPADs and an application-specific integrated circuit in the same die. The potential of such digital SiPMs (dSiPMs) is still being explored, while it already is an established technology in certain applications, like light detection and ranging (LiDAR). A prototype dSiPM, produced in the LFoundry 150-nm CMOS technology, was designed and tested at DESY. The dSiPM central part is a matrix of 32 by 32 pixels. Each pixel contains four SPADs, a digital front-end, and has an area of 69.6 × 76 µm2. The chip has four time-to-digital converters and includes further circuitry for data serialization and data links.This work focuses on the characterization of the prototype in an electron beam at the DESY II Test Beam facility, to study its capability as a tracking and timing detector for minimum ionizing particles (MIPs). The MIP detection efficiency is found to be dominated by the fill factor and on the order of 31 
%F PUB:(DE-HGF)16
%9 Journal Article
%R 10.1016/j.nima.2025.170874
%U https://bib-pubdb1.desy.de/record/617744