Liquid Hole-Multipliers: A potential concept for large single-phase noble-liquid TPCs of rare events
arXiv:1303.4365 · doi:10.1088/1742-6596/460/1/012020
Abstract
A novel concept is proposed for large-volume single-phase noble-liquid TPC detectors for rare events. Both radiation-induced scintillation-light and ionization-charge are detected by Liquid Hole-Multipliers, LHM, immersed in the noble liquid. The latter may consist of cascaded Gas Electron Multipliers (GEM), Thick Gas Electron Multiplier (THGEM) electrodes or others, coated with CsI UV-photocathodes. Electrons, photo-induced on CsI by primary scintillation in the noble liquid, and event-correlated drifting ionization electrons are amplified in the cascaded elements primarily through electroluminescence, and possibly through additional moderate avalanche, occurring within the holes. The resulting charge-signals or light-pulses are recorded on anode pads or with photosensors, e.g. gaseous photomultipliers (GPM), respectively. Potential affordable solutions are proposed for multi-ton dark-matter detectors; open questions are formulated for validating this dream.
8 pages; 3 figures, Presented at TPC2012 Paris, December 2012. Submitted to Journal of Physics: Conference Series (JPCS)
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- First observation of liquid-xenon proportional electroluminescence in THGEM holes
- Liquid Hole Multipliers: bubble-assisted electroluminescence in liquid xenon
- First in-beam studies of a Resistive-Plate WELL gaseous multiplier
- Recent advances with THGEM detectors
- First results of a large-area cryogenic gaseous photomultiplier coupled to a dual-phase liquid xenon TPC
- First demonstration of VUV-photon detection in liquid xenon with THGEM and GEM-based Liquid Hole Multipliers
- Recent Advances in Bubble-Assisted Liquid Hole Multipliers in Liquid Xenon
- Proposal of a Geiger-type Single-Phase Liquid Xenon Time Projection Chamber as Potential Detector Technique for Dark Matter Direct Search
- Bubble-assisted Liquid Hole Multipliers in LXe and LAr: towards "local dual-phase TPCs"
- First Imaging Results of a Bubble-assisted Liquid Hole Multiplier with SiPM readout in Liquid Xenon
- Novel electron and photon recording concepts in noble-liquid detectors
- First demonstration of a bubble-assisted Liquid Hole Multiplier operation in liquid argon
- Multi-layer Thick Gas Electron Multiplier (M-THGEM): a new MPDG structure for high-gain operation at low-pressure
- On the Evaluation of Silicon Photomultipliers for Use as Photosensors in Liquid Xenon Detectors
- Electron transfer efficiency in liquid xenon across THGEM holes
- Direct observation of bubble-assisted electroluminescence in liquid xenon
- Bubble dynamics in Liquid Hole Multipliers