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Effect of Neutral Bremsstrahlung on the Operation of Two-Phase Argon Detectors

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Abstract

Two-phase noble liquid detectors are widely used in experiments for dark matter search. Ionization signals caused by particle scattering in a noble-gas liquid are commonly recorded using the effect of proportional electroluminescence in the gas phase. In addition to the standard electroluminescence mechanism based on vacuum ultraviolet emission of noble gas excimers, the mechanism of electron bremsstrahlung on neutral atoms with a continuous spectrum from ultraviolet to near infrared range was recently revealed. In this paper, we demonstrate the effect of bremsstrahlung on characteristics of a DarkSide-50 two-phase argon detector. In particular, the sag of the electroluminescent gap grid and the contribution of the fast component to the proportional electroluminescence signal will be estimated.

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REFERENCES

  1. C. A. B. Oliveira, H. Schindler, R. J. Veenhof, S. Biagi, C. M. B. Monteiro, J. M. F. dosSantos, A. L. Ferreira, and J. F. C. A. Veloso, “Simulation Toolkit for Electroluminescence Assessment in Rare Event Experiments,” Phys. Lett. B 703, 217 (2011). https://doi.org/10.1016/j.physletb.2011.07.081

    Article  ADS  Google Scholar 

  2. A. Buzulutskov, “Photon Emission and Atomic Collision Processes in Two-Phase Argon Doped with Xenon and Nitrogen,” Europhys. Lett. Vol. 117, 39002 (2017). https://doi.org/10.1209/0295-5075/117/39002

    Article  ADS  Google Scholar 

  3. V. Chepel and H. Araujo, “Liquid Noble Gas Detectors for Low Energy Particle Physics,” J. Instrum. 8, R04001 (2013). https://doi.org/10.1088/1748-0221/8/04/R04001

    Article  Google Scholar 

  4. A. Buzulutskov, E. Shemyakina, A. Bondar, A. Dolgov, E. Frolov, V. Nosov, V. Oleynikov, L. Shekhtman, and A. Sokolov, “Revealing Neutral Bremsstrahlung in Two-Phase Argon Electroluminescence,” Astropart. Phys. 103, 29 (2018). https://doi.org/10.1016/j.astropartphys.2018.06.005

    Article  ADS  Google Scholar 

  5. C. E. Aalseth et al. (DarkSide Collaboration), “DarkSide-20k: A 20 Tonne Two-Phase LAr TPC for Direct Dark Matter Detection at LNGS,” Eur. Phys. J. Plus 133 (2018). https://doi.org/10.1140/epjp/i2018-11973-4

  6. A. Bondar, A. Buzulutskov, A. Dolgov, E. Frolov, V. Nosov, V. Oleynikov, E. Shemyakina, and A. Sokolov, “Neutral Bremsstrahlung in Two-Phase Argon Electroluminescence: Further Studies and Possible Applications,” Nucl. Instrum. Methods Phys. Res. A 958, 162432 (2020). https://doi.org/10.1016/j.nima.2019.162432

    Article  Google Scholar 

  7. P. Agnes et al. (DarkSide Collaboration), “First Results from the DarkSide-50 Dark Matter Experiment at LaboratoriNazionalidel Gran Sasso,” Phys. Lett. B 743, 456 (2015). https://doi.org/10.1016/j.physletb.2015.03.012

    Article  ADS  Google Scholar 

  8. C. Amsler, V. Boccone, A. Büchler, R. Chandrasekharan, C. Regenfus, and J. Rochet, “Luminescence Quenching of the Triplet Excimer State by Air Traces in Gaseous Argon,” J. Instrum. 3, P02001 (2008). https://doi.org/10.1088/1748-0221/3/02/P02001

    Article  Google Scholar 

  9. P. Agnes et al. (DarkSide Collaboration), “Electroluminescence Pulse Shape and Electron Diffusion in Liquid Argon Measured in a Dual-Phase TPC,” Nucl. Instrum. Methods A 904, 23 (2018). https://doi.org/10.1016/j.nima.2018.06.077

    Article  ADS  Google Scholar 

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Funding

This study was supported in part by the Russian Science Foundation, project no. 20-12-00008.

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Correspondence to V. P. Oleynikov.

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Translated by A. Kazantsev

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Bondar, A.E., Borisova, E.O., Buzulutskov, A.F. et al. Effect of Neutral Bremsstrahlung on the Operation of Two-Phase Argon Detectors. Bull. Lebedev Phys. Inst. 47, 162–165 (2020). https://doi.org/10.3103/S1068335620060032

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  • DOI: https://doi.org/10.3103/S1068335620060032

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