Scintillation decay-time constants for alpha particles and electrons in liquid xenon

Cichon, D.; Eurin, G.; Jörg, Florian; Undagoitia, T. Marrodán; Rupp, N.

doi:10.1063/5.0087216

Cited by 2 publications

(1 citation statement)

References 42 publications

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“…The emission spectrum is modeled as a Gaussian with a mean of 174.8 nm and a full width at half maximum of 10.2 nm [33]. The scintillation time profile is modeled by a two-component exponential decay function [34][35][36][37][38][39].…”

Section: Optical Propertiesmentioning

confidence: 99%

GPU-based optical simulation of the DARWIN detector

Althueser¹,

Antunović²,

Aprile³

et al. 2022

J. Inst.

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Understanding propagation of scintillation light is critical for maximizing the discovery potential of next-generation liquid xenon detectors that use dual-phase time projection chamber technology. This work describes a detailed optical simulation of the DARWIN detector implemented using Chroma, a GPU-based photon tracking framework. To evaluate the framework and to explore ways of maximizing efficiency and minimizing the time of light collection, we simulate several variations of the conventional detector design. Results of these selected studies are presented. More generally, we conclude that the approach used in this work allows one to investigate alternative designs faster and in more detail than using conventional Geant4 optical simulations, making it an attractive tool to guide the development of the ultimate liquid xenon observatory.

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Section: Optical Propertiesmentioning

confidence: 99%

GPU-based optical simulation of the DARWIN detector

Althueser¹,

Antunović²,

Aprile³

et al. 2022

J. Inst.

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show abstract

First time-resolved measurement of infrared scintillation light in gaseous xenon

et al. 2023

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Xenon is a widely used detector target material due to its excellent scintillation properties in the ultraviolet (UV) spectrum. The additional use of infrared (IR) scintillation light could improve future detectors. However, a comprehensive characterization of the IR component is necessary to explore its potential. We report on the first measurement of the time profile of the IR scintillation response of gaseous xenon. Our setup consists of a gaseous xenon target irradiated by an alpha particle source and is instrumented with one IR- and two UV-sensitive photomultiplier tubes. Thereby, it enables IR timing measurements with nanosecond resolution and simultaneous measurement of UV and IR signals. We find that the IR light yield is in the same order of magnitude as the UV yield. We observe that the IR pulses can be described by a fast and a slow component and demonstrate that the size of the slow component decreases with increasing levels of impurities in the gas. Moreover, we study the IR emission as a function of pressure. These findings confirm earlier observations and advance our understanding of the IR scintillation response of gaseous xenon, which could have implications for the development of novel xenon-based detectors.

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Scintillation decay-time constants for alpha particles and electrons in liquid xenon

Cited by 2 publications

References 42 publications

GPU-based optical simulation of the DARWIN detector

GPU-based optical simulation of the DARWIN detector

First time-resolved measurement of infrared scintillation light in gaseous xenon

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