TY  - CONF
AU  - Diehl, Inge
AU  - Feindt, Finn
AU  - Hansen, Karsten
AU  - Lachnit, Stephan
AU  - Poblotzki, Frauke
AU  - Rastorguev, Daniil
AU  - Spannagel, Simon
AU  - Vanat, Tomas
AU  - Vignola, Gianpiero
TI  - The DESY digital silicon photomultiplier: Device characteristics and first test-beam results
JO  - Nuclear instruments & methods in physics research / Section A
VL  - 1064
SN  - 0168-9002
CY  - Amsterdam
PB  - North-Holland Publ. Co.
M1  - PUBDB-2024-00531
SP  - 169321
PY  - 2024
N1  - CC BY 4.0 Deed, Received 13 February 2024, Revised 27 March 2024, Accepted 3 April 2024, Available online 5 April 2024, Version of Record 13 April 2024.
AB  - Silicon Photomultipliers (SiPMs) are state-of-the-art photon detectors used in particle physics, medical imaging, and beyond. They are sensitive to individual photons in the optical wavelength regime and achieve time resolutions of a few tens of picoseconds, which makes them interesting candidates for timing detectors in tracking systems for particle physics experiments. The Geiger discharges triggered in the sensitive elements of a SiPM, Single-Photon Avalanche Diodes (SPADs), yield signal amplitudes independent of the energy deposited by a photon or ionizing particle. This intrinsically digital nature of the signal motivates its digitization already on SPAD level. A digital SiPM (dSiPM) was designed at Deutsches Elektronen Synchrotron (DESY), combining a SPAD array with embedded CMOS circuitry for on-chip signal processing. A key feature of the DESY dSiPM is its capability to provide hit-position information on pixel level, and one hit time stamp per quadrant at a 3 MHz readout-frame rate. The pixels comprise four SPADs and have a pitch of about 70 μm. The four time stamps are provided by 12 bit Time-to-Digital Converters (TDCs) with a resolution better than 100 ps. The chip was characterized in the laboratory to determine dark count rate, breakdown voltage, and TDC characteristics. Test-beam measurements are analyzed to assess the DESY dSiPMs performance in the context of a 4D-tracking applications. The results demonstrate a spatial hit resolution on a pixel level, a minimum-ionizing particle detection efficiency of about 30 
T2  - 13th International "Hiroshima" Symposium on the Development and Application of Semiconductor Tracking Detectors
CY  - 3 Dec 2023 - 8 Dec 2023, Vancouver (Canada)
Y2  - 3 Dec 2023 - 8 Dec 2023
M2  - Vancouver, Canada
LB  - PUB:(DE-HGF)16 ; PUB:(DE-HGF)8
UR  - <Go to ISI:>//WOS:001300021300001
DO  - DOI:10.1016/j.nima.2024.169321
UR  - https://bib-pubdb1.desy.de/record/602205
ER  -