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arXiv · 2009.06238

Pulse shape study of the fast scintillation light emitted from xenon-doped liquid argon using silicon photomultipliers

Cristiano Galbiati·Xinran Li·Jingyu Luo·Daniel R. Marlow·Hanguo Wang·Yi Wang
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Abstract

Xenon-doped liquid argon has been proposed as a good alternative to pure liquid argon in scintillation detectors. In this study, we report on the measurement of the time profile of scintillation light emitted from xenon-doped liquid argon with molar concentrations up to 1600 ppm. A compact setup has been developed for this study, with silicon photomultiplier (SiPM) as the photosensor and $^{210}\mathrm{Po}$ and $^{90}\mathrm{Sr}$ as scintillation sources. An effective model based on the de-excitation processes has been developed to describe the data. The results show that xenon-doped liquid argon is a good fast scintillator and can be used in lieu of tetraphenyl butadiene (TPB) in a way that preserves its capability for particle identification via pulse shape discrimination (PSD).

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Cristiano Galbiati, Xinran Li, Jingyu Luo, Daniel R. Marlow, Hanguo Wang, Yi Wang. 2021-02-22. Pulse shape study of the fast scintillation light emitted from xenon-doped liquid argon using silicon photomultipliers. https://doi.org/10.1088/1748-0221%2F16%2F02%2Fp02015

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