Bubble dynamics in Liquid Hole Multipliers
arXiv:2108.00067 · doi:10.1088/1748-0221/16/09/P09003
Abstract
In bubble-assisted Liquid HoleMultipliers(LHM), developed for noble-liquid radiation detectors, the stability of the bubble and the electro-mechanical properties of the liquid-to-gas interface play a dominant role in the detector performance. A model is proposed to evaluate the static equilibrium configurations of a bubble sustained underneath a perforated electrode immersed in a liquid. For the first time bubbles were optically observed in LAr; their properties were studied in contact with different material surfaces. This permitted investigating the bubble-electrodynamics via numerical simulations; it was shown that the electric field acts as an additional pressure term on the bubble meniscus. The predictions for the liquid-to-gas interface were successfully validated using X-ray micro-CT in water and in silicone oil at STP. The proposed model and the results of this study are an important milestone towards understanding and optimizing the parameters of LHM-based noble-liquid detectors.
arXiv comment25 pages, 15 figures
References in corpus (8)
- A concise review on THGEM detectors
- Liquid Hole-Multipliers: A potential concept for large single-phase noble-liquid TPCs of rare events
- First observation of liquid-xenon proportional electroluminescence in THGEM holes
- First demonstration of VUV-photon detection in liquid xenon with THGEM and GEM-based Liquid Hole Multipliers
- Status and New Ideas Regarding Liquid Argon Detectors
- Recent Advances in Bubble-Assisted Liquid Hole Multipliers in Liquid Xenon
- First Imaging Results of a Bubble-assisted Liquid Hole Multiplier with SiPM readout in Liquid Xenon
- First demonstration of a bubble-assisted Liquid Hole Multiplier operation in liquid argon