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| Home > Publications database > The DESY digital silicon photomultiplier: Device characteristics and first test-beam results |
| Typ | Amount | VAT | Currency | Share | Status | Cost centre |
| Hybrid-OA | 2500.00 | 0.00 | EUR | 96.15 % | (DEAL) | 28920 / 476152 |
| Payment fee | 100.00 | 0.35 | EUR | 3.85 % | (DEAL) | 28920 / 476152 |
| Hybrid-OA | -700.00 | 0.00 | EUR | -26.92 % | (Storniert) | 28920 / 476152 |
| Hybrid-OA | 700.00 | 0.00 | EUR | 26.92 % | (Zahlung erfolgt) | 28901 / 476152 |
| Sum | 2600.00 | 0.35 | EUR | |||
| Total | 2600.35 |
| Journal Article/Contribution to a conference proceedings | PUBDB-2024-00531 |
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2024
North-Holland Publ. Co.
Amsterdam
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Please use a persistent id in citations: doi:10.1016/j.nima.2024.169321 doi:10.3204/PUBDB-2024-00531
Abstract: 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 % and a time resolution in the order of 50 ps.
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