Preparation and measurement of an $\rm ^{37}$Ar source for liquid xenon detector calibration

Fuente: arXiv
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Main Authors: Guo, Xu-Nan, Cai, Chang, Gao, Fei, Lei, Yang, Li, Kai-Hang, Su, Chun-Lei, Wu, Ze-Peng, Xiao, Xiang, Xie, Ling-Feng, Zhao, Yi-Fei, Zhou, Xiao-Peng
Format: Preprint
Published: 2025
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author Guo, Xu-Nan
Cai, Chang
Gao, Fei
Lei, Yang
Li, Kai-Hang
Su, Chun-Lei
Wu, Ze-Peng
Xiao, Xiang
Xie, Ling-Feng
Zhao, Yi-Fei
Zhou, Xiao-Peng
author_facet Guo, Xu-Nan
Cai, Chang
Gao, Fei
Lei, Yang
Li, Kai-Hang
Su, Chun-Lei
Wu, Ze-Peng
Xiao, Xiang
Xie, Ling-Feng
Zhao, Yi-Fei
Zhou, Xiao-Peng
contents We present the preparation and measurement of the radioactive isotope $\rm ^{37}Ar$, which was produced using thermal neutrons from a reactor, as a calibration source for liquid xenon time projection chambers. $\rm ^{37}Ar$ is a low-energy calibration source with a half-life of 35.01 days, making it suitable for calibration in the low-energy region of liquid xenon dark-matter experiments. Radioactive isotope $\rm ^{37}Ar$ was produced by irradiating $\rm ^{36}Ar$ with thermal neutrons. It was subsequently measured in a gaseous xenon time projection chamber (GXe TPC) to validate its radioactivity. Our results demonstrate that $\rm ^{37}Ar$ is an effective and viable calibration source that offers precise calibration capabilities in the low-energy domain of xenon-based detectors.
format Preprint
id arxiv_https___arxiv_org_abs_2509_04829
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Preparation and measurement of an $\rm ^{37}$Ar source for liquid xenon detector calibration
Guo, Xu-Nan
Cai, Chang
Gao, Fei
Lei, Yang
Li, Kai-Hang
Su, Chun-Lei
Wu, Ze-Peng
Xiao, Xiang
Xie, Ling-Feng
Zhao, Yi-Fei
Zhou, Xiao-Peng
Instrumentation and Detectors
High Energy Physics - Experiment
We present the preparation and measurement of the radioactive isotope $\rm ^{37}Ar$, which was produced using thermal neutrons from a reactor, as a calibration source for liquid xenon time projection chambers. $\rm ^{37}Ar$ is a low-energy calibration source with a half-life of 35.01 days, making it suitable for calibration in the low-energy region of liquid xenon dark-matter experiments. Radioactive isotope $\rm ^{37}Ar$ was produced by irradiating $\rm ^{36}Ar$ with thermal neutrons. It was subsequently measured in a gaseous xenon time projection chamber (GXe TPC) to validate its radioactivity. Our results demonstrate that $\rm ^{37}Ar$ is an effective and viable calibration source that offers precise calibration capabilities in the low-energy domain of xenon-based detectors.
title Preparation and measurement of an $\rm ^{37}$Ar source for liquid xenon detector calibration
topic Instrumentation and Detectors
High Energy Physics - Experiment
url https://arxiv.org/abs/2509.04829