Determine Energy Nonlinearity and Resolution of $e^{\pm}$ and $γ$ in Liquid Scintillator Detectors by A Universal Energy Response Model

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Hauptverfasser: Yu, Miao, Wen, Liangjian, Zhou, Xiang, Luo, Wuming
Format: Preprint
Veröffentlicht: 2022
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author Yu, Miao
Wen, Liangjian
Zhou, Xiang
Luo, Wuming
author_facet Yu, Miao
Wen, Liangjian
Zhou, Xiang
Luo, Wuming
contents Energy nonlinearity and resolution in liquid scintillator (LS) detectors are correlated and particle-dependent. A unified energy response model for liquid scintillator detectors has been presented in details. This model has advanced a data-driven approach to calibrate the particle-dependent energy response, using both the monoenergetic $γ$-ray sources and the continuous $β$ spectra of $^\mathrm{12}\mathrm{B}$ and Michel $e^-$ induced by cosmic muons. Monte Carlo studies have demonstrated the effectiveness and robustness of the proposed model, in particular, the positron energy resolution can be extracted in the absence of positron sources. This work will provide a feasible approach of simultaneous calibration of energy nonlinearity and resolution for the running and future LS detectors.
format Preprint
id arxiv_https___arxiv_org_abs_2211_02467
institution arXiv
publishDate 2022
record_format arxiv
spellingShingle Determine Energy Nonlinearity and Resolution of $e^{\pm}$ and $γ$ in Liquid Scintillator Detectors by A Universal Energy Response Model
Yu, Miao
Wen, Liangjian
Zhou, Xiang
Luo, Wuming
High Energy Physics - Experiment
Instrumentation and Detectors
Energy nonlinearity and resolution in liquid scintillator (LS) detectors are correlated and particle-dependent. A unified energy response model for liquid scintillator detectors has been presented in details. This model has advanced a data-driven approach to calibrate the particle-dependent energy response, using both the monoenergetic $γ$-ray sources and the continuous $β$ spectra of $^\mathrm{12}\mathrm{B}$ and Michel $e^-$ induced by cosmic muons. Monte Carlo studies have demonstrated the effectiveness and robustness of the proposed model, in particular, the positron energy resolution can be extracted in the absence of positron sources. This work will provide a feasible approach of simultaneous calibration of energy nonlinearity and resolution for the running and future LS detectors.
title Determine Energy Nonlinearity and Resolution of $e^{\pm}$ and $γ$ in Liquid Scintillator Detectors by A Universal Energy Response Model
topic High Energy Physics - Experiment
Instrumentation and Detectors
url https://arxiv.org/abs/2211.02467