ORIGINAL RESEARCH article
Front. Detect. Sci. Technol.
Sec. Detector Physics
Volume 3 - 2025 | doi: 10.3389/fdest.2025.1638362
This article is part of the Research TopicFundamentals of luminescence and electroluminescence in particle detection technologies relying on noble-gas mediaView all 8 articles
Operation of a dual-phase xenon detector with wavelength sensitivity from ultraviolet to infrared
Provisionally accepted
- Max Planck Institute for Nuclear Physics, Heidelberg, Germany
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Xenon, in both its gaseous and liquid phase, offers excellent scintillation and ionization properties, making it an ideal target medium for rare event searches. We report on measurements performed with a dual-phase xenon time projection chamber sensitive to wavelengths from 170 nm to 1700 nm. In addition to the well-established ultraviolet (UV) scintillation, we observe coincident signals in a photomultiplier tube sensitive to infrared (IR) light, associated with both prompt scintillation in the liquid and electroluminescence in the gas. We study the time response of the IR signals and their dependence on the applied amplification field in the gas. Our findings support the observation of IR emission from electroluminescence and reveal a time response distinct from that previously reported for α-particles in gas. The results suggest that IR scintillation could provide enhanced signal identification and background rejection in future xenon-based detectors.
Keywords: Liquid xenon, Scintillation, Infrared radiation, dark matter, Noble gas detectors, Time projection chamber
Received: 30 May 2025; Accepted: 03 Jul 2025.
Copyright: © 2025 Hammann, Böse, Form, Hötzsch and Marrodán Undagoitia. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
* Correspondence:
Robert Hammann, Max Planck Institute for Nuclear Physics, Heidelberg, Germany
Kai Böse, Max Planck Institute for Nuclear Physics, Heidelberg, Germany
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