Preparation and measurement of an $\rm ^{37}$Ar source for liquid xenon detector calibration
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| Main Authors: | , , , , , , , , , , |
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| Format: | Preprint |
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2025
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| _version_ | 1866911505202544640 |
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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 |