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Title: Batch VUV4 characterization for the SBC-LAr10 scintillating bubble chamber
Abstract The Scintillating Bubble Chamber (SBC) collaboration purchased 32 Hamamatsu VUV4 silicon photomultipliers (SiPMs) for use in SBC-LAr10, a bubble chamber containing 10 kg of liquid argon. A dark-count characterization technique, which avoids the use of a single-photon source, was used at two temperatures to measure the VUV4 SiPMs breakdown voltage (VBD), the SiPM gain (gSiPM), the rate of change ofgSiPMwith respect to voltage (m), the dark count rate (DCR), and the probability of a correlated avalanche (PCA) as well as the temperature coefficients of these parameters. A Peltier-based chilled vacuum chamber was developed at Queen's University to cool down the Quads to 233.15 ± 0.2 K and 255.15 ± 0.2 K with average stability of ±20 mK. An analysis framework was developed to estimate VBDto tens of mV precision and DCR close to Poissonian error. The temperature dependence of VBDwas found to be 56 ± 2 mV K-1, andmon average across all Quads was found to be (459 ± 3(stat.)±23(sys.))× 103e-PE-1V-1. The average DCR temperature coefficient was estimated to be 0.099 ± 0.008 K-1corresponding to a reduction factor of 7 for every 20 K drop in temperature. The average temperature dependence of PCAwas estimated to be 4000 ± 1000 ppm K-1. PCAestimated from the average across all SiPMs is a better estimator than the PCAcalculated from individual SiPMs, for all of the other parameters, the opposite is true. All the estimated parameters were measured to the precision required for SBC-LAr10, and the Quads will be used in conditions to optimize the signal-to-noise ratio.  more » « less
Award ID(s):
2310112
PAR ID:
10593393
Author(s) / Creator(s):
; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; more » ; ; ; ; ; ; ; ; ; ; ; « less
Publisher / Repository:
IOPscience
Date Published:
Journal Name:
Journal of Instrumentation
Volume:
19
Issue:
08
ISSN:
1748-0221
Page Range / eLocation ID:
T08003
Subject(s) / Keyword(s):
Silicon Photomultiplier photon counting
Format(s):
Medium: X
Sponsoring Org:
National Science Foundation
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