Calibration of XENON1T with 37Ar diffused inside the detector

Angelino, E. (2023) Calibration of XENON1T with 37Ar diffused inside the detector. Il nuovo cimento C, 46 (4). pp. 1-4. ISSN 1826-9885

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The XENON project, located at INFN Laboratori Nazionali del Gran Sasso, aims to directly detect dark matter particles, through the interaction with xenon atoms inside a dual-phase Time Projection Chamber. At the end of the last XENON1T science run, in 2018, a low-energy calibration with an internal 37Ar source was performed for the first time. 37Ar decays by electron capture, with 35-days half-life, emitting photons and electrons which generate two mono energetic signals, at 2.82keV (K-shell) and 0.27keV (L-shell). The final results of the calibration confirm that the behaviour of the detector is well-understood. Additionally, it was proven that cryogenic distillation efficiently removed 37Ar and, therefore, this source can be used for calibrations in multi-tonne xenon detectors.

Item Type: Article
Subjects: 500 Scienze naturali e Matematica > 530 Fisica
Depositing User: Marina Spanti
Date Deposited: 15 Feb 2024 10:36
Last Modified: 15 Feb 2024 10:36

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