Low energy electronic recoils and single electron detection with a liquid Xenon proportional scintillation counter
نویسندگان
چکیده
Liquid xenon (LXe) is a well-studied detector medium to search for rare events in dark matter and neutrino physics. Two-phase time projection chambers (TPCs) can detect electronic nuclear recoils with energy down kilo-electron volts (keV). In this paper, we characterize the response of single-phase liquid proportional scintillation counter (LXePSC), which produces electroluminescence directly liquid, at low energies. Our design uses thin (10 - 25 $\mu$m diameter), central anode wire cylindrical LXe target where ionization electrons, created from radiation particles, drift radially towards anode, produced. Both primary (S1) (S2) are detected by photomultiplier tubes (PMTs) surrounding target. Up 17 photons produced per electron, obtained 10 diameter wire, allowing highly efficient detection beta decays tritium source roughly 1 keV. Single photo-emission cathode wires, observed gain 1.8 photoelectrons (PE) electron. The delayed signals following S2 dominated single-photon-like hits, without evidence electron two-phase TPCs. We discuss potential application such LXePSC reactor via Coherent Elastic Neutrino Nucleus Scattering (CE$\nu$NS).
منابع مشابه
Measurements of Scintillation Efficiency and Pulse-Shape for Low Energy Recoils in Liquid Xenon
Results of observations of low energy nuclear and electron recoil events in liquid xenon scintillator detectors are given. The relative scintillation efficiency for nuclear recoils is 0.22 ± 0.01 in the recoil energy range 40 keV 70 keV. Under the assumption of a single dominant decay component to the scintillation pulse-shape the log-normal mean parameter T0 of the maximum likelihood estimator...
متن کاملScintillation efficiency of liquid xenon for nuclear recoils with the energy down to 5 keV
The scintillation efficiency of liquid xenon for nuclear recoils has been measured to be nearly constant in the recoil energy range from 140 keV down to 5 keV. The average ratio of the efficiency for recoils to that for gamma-rays is found to be 0.19±0.02. PACS codes: 29.40.Mc, 78.70.-g, 78.60.-b, 95.35.+d
متن کاملDetection of Liquid Xenon Scintillation Light with a Silicon Photomultiplier
We have studied the feasibility of a silicon photomultiplier (SiPM) to detect liquid xenon (LXe) scintillation light. The SiPM was operated inside a small volume of pure LXe, at -95C, irradiated with an internal Am α source. The gain of the SiPM at this temperature was estimated to be 1.8 × 10 with bias voltage at 52 V. Based on the geometry of the setup, the quantum efficiency of the SiPM was ...
متن کاملDiscrimination between Nuclear Recoils and Electron Recoils by Simultaneous Detection of Phonons and Scintillation Light
We have developed a detector, consisting of a cryogenic calorimeter with a scintillating crystal as absorber, and a second calorimeter for the detection of the scintillation light, both operated at 12 mK. Using a CaWO4 crystal with a mass of 6 g as scintillating absorber, we have achieved a discrimination of nuclear recoils against electron recoils with a suppression factor of 99.7% at energies...
متن کاملElectron Multiplication and Secondary Scintillation in Liquid Xenon: New Prospects
The history, present situation and prospects on electron multiplication and secondary scintillation in liquid xenon and their application to radiation detectors are shortly discussed.
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Instrumentation
سال: 2023
ISSN: ['1748-0221']
DOI: https://doi.org/10.1088/1748-0221/18/07/p07027