Machine-learning based photon counting for PMT waveforms and its application to the improvement of the energy resolution in large liquid scintillator detectors

Abstract Photomultiplier tubes (PMTs) are widely used in particle experiments for photon detection. PMT waveform analysis is crucial for high-precision measurements of the position and energy of incident particles in liquid scintillator (LS) detectors. A key factor contributing to the energy resolut...

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Main Authors: Wei Jiang, Guihong Huang, Zhen Liu, Wuming Luo, Liangjian Wen, Jianyi Luo
Format: Article
Language:English
Published: SpringerOpen 2025-01-01
Series:European Physical Journal C: Particles and Fields
Online Access:https://doi.org/10.1140/epjc/s10052-024-13724-3
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author Wei Jiang
Guihong Huang
Zhen Liu
Wuming Luo
Liangjian Wen
Jianyi Luo
author_facet Wei Jiang
Guihong Huang
Zhen Liu
Wuming Luo
Liangjian Wen
Jianyi Luo
author_sort Wei Jiang
collection DOAJ
description Abstract Photomultiplier tubes (PMTs) are widely used in particle experiments for photon detection. PMT waveform analysis is crucial for high-precision measurements of the position and energy of incident particles in liquid scintillator (LS) detectors. A key factor contributing to the energy resolution in large liquid scintillator detectors with PMTs is the charge smearing of PMTs. This paper presents a machine-learning-based photon counting method for PMT waveforms and its application to the energy reconstruction, using the JUNO experiment as an example. The results indicate that leveraging the photon counting information from the machine learning model can partially mitigate the impact of PMT charge smearing and lead to a relative 2.0–2.8% improvement on the energy resolution in the energy range of [1, 9] MeV.
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institution Kabale University
issn 1434-6052
language English
publishDate 2025-01-01
publisher SpringerOpen
record_format Article
series European Physical Journal C: Particles and Fields
spelling doaj-art-7473507df77c4a42b3bed4dbd677d05c2025-01-26T12:49:14ZengSpringerOpenEuropean Physical Journal C: Particles and Fields1434-60522025-01-0185111410.1140/epjc/s10052-024-13724-3Machine-learning based photon counting for PMT waveforms and its application to the improvement of the energy resolution in large liquid scintillator detectorsWei Jiang0Guihong Huang1Zhen Liu2Wuming Luo3Liangjian Wen4Jianyi Luo5School of Physical Sciences, University of Chinese Academy of ScienceWuyi UniversityInstitute of High Energy Physics, Chinese Academy of SciencesInstitute of High Energy Physics, Chinese Academy of SciencesInstitute of High Energy Physics, Chinese Academy of SciencesWuyi UniversityAbstract Photomultiplier tubes (PMTs) are widely used in particle experiments for photon detection. PMT waveform analysis is crucial for high-precision measurements of the position and energy of incident particles in liquid scintillator (LS) detectors. A key factor contributing to the energy resolution in large liquid scintillator detectors with PMTs is the charge smearing of PMTs. This paper presents a machine-learning-based photon counting method for PMT waveforms and its application to the energy reconstruction, using the JUNO experiment as an example. The results indicate that leveraging the photon counting information from the machine learning model can partially mitigate the impact of PMT charge smearing and lead to a relative 2.0–2.8% improvement on the energy resolution in the energy range of [1, 9] MeV.https://doi.org/10.1140/epjc/s10052-024-13724-3
spellingShingle Wei Jiang
Guihong Huang
Zhen Liu
Wuming Luo
Liangjian Wen
Jianyi Luo
Machine-learning based photon counting for PMT waveforms and its application to the improvement of the energy resolution in large liquid scintillator detectors
European Physical Journal C: Particles and Fields
title Machine-learning based photon counting for PMT waveforms and its application to the improvement of the energy resolution in large liquid scintillator detectors
title_full Machine-learning based photon counting for PMT waveforms and its application to the improvement of the energy resolution in large liquid scintillator detectors
title_fullStr Machine-learning based photon counting for PMT waveforms and its application to the improvement of the energy resolution in large liquid scintillator detectors
title_full_unstemmed Machine-learning based photon counting for PMT waveforms and its application to the improvement of the energy resolution in large liquid scintillator detectors
title_short Machine-learning based photon counting for PMT waveforms and its application to the improvement of the energy resolution in large liquid scintillator detectors
title_sort machine learning based photon counting for pmt waveforms and its application to the improvement of the energy resolution in large liquid scintillator detectors
url https://doi.org/10.1140/epjc/s10052-024-13724-3
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