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arXiv:2007.13537 (physics)
[Submitted on 27 Jul 2020 (v1), last revised 10 Mar 2021 (this version, v2)]

Title:Characterization of New Silicon Photomultipliers with Low Dark Noise at Low Temperature

Authors:K. Ozaki, S. Kazama, M. Yamashita, Y. Itow, S. Moriyama
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Abstract:Silicon photomultipliers (SiPMs) have a low radioactivity, compact geometry, low operation voltage, and reasonable photo-detection efficiency for vacuum ultraviolet light (VUV). Therefore it has the potential to replace photomultiplier tubes (PMTs) for future dark matter experiments with liquid xenon (LXe). However, SiPMs have nearly two orders of magnitude higher dark count rate (DCR) compared to that of PMTs at the LXe temperature ($\sim$ 165 K). This type of high DCR mainly originates from the carriers that are generated by band-to-band tunneling effect. To suppress the tunneling effect, we have developed a new SiPM with lowered electric field strength in cooperation with Hamamatsu Photonics K. K. and characterized its performance in a temperature range of 153 K to 298 K. We demonstrated that the newly developed SiPMs had 6--54 times lower DCR at low temperatures compared to that of the conventional SiPMs.
Comments: 9 pages,13 figures, 2 tables
Subjects: Instrumentation and Detectors (physics.ins-det)
Cite as: arXiv:2007.13537 [physics.ins-det]
  (or arXiv:2007.13537v2 [physics.ins-det] for this version)
  https://doi.org/10.48550/arXiv.2007.13537
Journal reference: JINST 16 P03014 (2021)
Related DOI: https://doi.org/10.1088/1748-0221/16/03/P03014

Submission history

From: Kosuke Ozaki [view email]
[v1] Mon, 27 Jul 2020 13:15:34 UTC (129 KB)
[v2] Wed, 10 Mar 2021 12:53:53 UTC (172 KB)
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