2019
DOI: 10.1016/j.nima.2019.05.096
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Characterization of the Hamamatsu VUV4 MPPCs for nEXO

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Cited by 53 publications
(86 citation statements)
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“…The peak wavelength of the LAr scintillation light is 128 nm, i.e., in vacuum ultraviolet (VUV), where the efficiencies of currently available VUV-optimized photosensors are typically fairly low, reaching at most 15% [21] (for the most recent review of the VUV photon detector technology see also [22]). Therefore, an efficient wavelength shifter (WLS), a material which absorbs the VUV light and isotropically re-emits it at a longer wavelength, is needed to enable its detection with standard blue-sensitive photosensors: conventional photomultiplier tubes (PMT), silicon photomultipliers (SiPM) or avalanche photodiodes (APD).…”
Section: Introductionmentioning
confidence: 99%
“…The peak wavelength of the LAr scintillation light is 128 nm, i.e., in vacuum ultraviolet (VUV), where the efficiencies of currently available VUV-optimized photosensors are typically fairly low, reaching at most 15% [21] (for the most recent review of the VUV photon detector technology see also [22]). Therefore, an efficient wavelength shifter (WLS), a material which absorbs the VUV light and isotropically re-emits it at a longer wavelength, is needed to enable its detection with standard blue-sensitive photosensors: conventional photomultiplier tubes (PMT), silicon photomultipliers (SiPM) or avalanche photodiodes (APD).…”
Section: Introductionmentioning
confidence: 99%
“…For this reason, it was not possible to fully benefit from the timing potential in the past with photodetectors available at that time. However, recent developments in solid state photodetectors with internal gain for experiments using liquid xenon as scintillating material lead to the necessity of measuring light at the very short wavelength of 175 nm [32,33]. This has recently also made new aspects of exploiting cross-luminescence feasible.…”
Section: Introductionmentioning
confidence: 99%
“…To meet nEXO requirements, the SiPM PDE must be ≥ 15% [7] for liquid xenon scintillation wavelengths (174.8 ± 10.2 nm [11]). In this paper, the PDE was measured using a filtered pulsed Hamamatsu L11035 xenon flash lamp enabling measurements free from correlated avalanches [2]. The mean wavelength after filtering is 189 ± 7 nm.…”
Section: Photon Detection Efficiencymentioning
confidence: 99%
“…The breakdown voltage is defined as the bias voltage at which the SiPM single PE gain (or charge) is zero. 2 3.1 ± 0.2 V is the closest measured points for which the requirement on N CA is satisfied. At this over voltage and temperature the electronics noise was measured to be 0.064 PE.…”
Section: Photon Detection Efficiencymentioning
confidence: 99%
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