TY - JOUR
T1 - Parametrization of high light yield, energy resolution, and optical cross-talk in SiPM-based liquid argon detectors
AU - Moharana, A.
AU - Galbiati, C.
AU - Horikawa, S.
AU - Kachru, P.
AU - Kochanek, I.
AU - Kondo, K.
AU - Razeto, A.
N1 - Funding Information:
We acknowledge support from the Istituto Nazionale di Fisica Nucleare (Italy) and Laboratori Nazionali del Gran Sasso (Italy) of INFN, from NSF (US, Grant PHY-1622415 and PHY-1812540 for Princeton University, USA), from the Royal Society UK and the Science and Technology Facilities Council (STFC), UK, part of the United Kingdom Research and Innovation, from the European Union's Horizon 2020 research and innovation programme under grant agreement No 952480 (DarkWave project), and from the International Research Agenda Programme AstroCeNT (MAB/2018/7) funded by the Foundation for Polish Science (FNP), Poland from the European Regional Development Fund.
Funding Information:
We acknowledge support from the Istituto Nazionale di Fisica Nucleare (Italy) and Laboratori Nazionali del Gran Sasso (Italy) of INFN , from NSF (US, Grant PHY-1622415 and PHY-1812540 for Princeton University, USA ), from the Royal Society UK and the Science and Technology Facilities Council (STFC), UK , part of the United Kingdom Research and Innovation, from the European Union’s Horizon 2020 research and innovation programme under grant agreement No 952480 (DarkWave project), and from the International Research Agenda Programme AstroCeNT ( MAB/2018/7 ) funded by the Foundation for Polish Science (FNP), Poland from the European Regional Development Fund.
Publisher Copyright:
© 2022 Elsevier B.V.
PY - 2023/3
Y1 - 2023/3
N2 - Liquefied noble gases are widely used as detector media in various physics experiments owing to their high scintillation efficiency and ease of scalability to large volumes. Now-a-days, these experiments are gradually shifting to SiPM-based readouts because of their high photon detection efficiency, superior resolution, and relative ease of use. However, SiPMs emit photons during the avalanche process, known as optical cross-talk, which can significantly affect the measured signal. In this work, we present two small single-phase liquid argon chambers equipped with SiPM arrays. They display high gross light yields up to 32 photo-electrons per keV, with ∼12 attributed to primary photo-electrons generated by scintillation photons. We then present the full parametrization of the over-voltage dependence of the light yield, energy resolution, and optical cross-talk, based on dedicated measurements of optical cross-talk components and a simple analytical model.
AB - Liquefied noble gases are widely used as detector media in various physics experiments owing to their high scintillation efficiency and ease of scalability to large volumes. Now-a-days, these experiments are gradually shifting to SiPM-based readouts because of their high photon detection efficiency, superior resolution, and relative ease of use. However, SiPMs emit photons during the avalanche process, known as optical cross-talk, which can significantly affect the measured signal. In this work, we present two small single-phase liquid argon chambers equipped with SiPM arrays. They display high gross light yields up to 32 photo-electrons per keV, with ∼12 attributed to primary photo-electrons generated by scintillation photons. We then present the full parametrization of the over-voltage dependence of the light yield, energy resolution, and optical cross-talk, based on dedicated measurements of optical cross-talk components and a simple analytical model.
KW - Cross-talk
KW - Light yield
KW - Liquid argon detector
KW - SiPM
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U2 - 10.1016/j.nima.2022.167911
DO - 10.1016/j.nima.2022.167911
M3 - Article
AN - SCOPUS:85144519404
SN - 0168-9002
VL - 1048
JO - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
JF - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
M1 - 167911
ER -