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arXiv · 1812.00780

First Imaging Results of a Bubble-assisted Liquid Hole Multiplier with SiPM readout in Liquid Xenon

E. Erdal·A. Tesi·D. Vartsky·S. Bressler·L. Arazi·A. Breskin
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Abstract

First imaging results in liquid xenon of a Liquid Hole Multiplier (LHM) coupled to a Quad-Silicon Photomultiplier (SiPM) array are presented. Ionization electrons deposited in the noble liquid by 5.5 MeV alpha particles, are collected into the holes of a Thick Gas Electron Multiplier (THGEM) electrode having a xenon gas bubble trapped underneath. They drift through the liquid-gas interface, inducing electroluminescence within the bubble. The resulting photons are detected with a Hamamatsu VUV4 quad-SiPM array - providing the deposited energy with a charge-only RMS resolution of 6.6%. The image reconstruction resolution was estimated to be ~200 um (RMS).

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E. Erdal, A. Tesi, D. Vartsky, S. Bressler, L. Arazi, A. Breskin. 2019-01-14. First Imaging Results of a Bubble-assisted Liquid Hole Multiplier with SiPM readout in Liquid Xenon. https://doi.org/10.1088/1748-0221%2F14%2F01%2Fp01028

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