Pulse shape study of the fast scintillation light emitted from xenon-doped liquid argon using silicon photomultipliers

C. Galbiati, X. Li, J. Luo, D. R. Marlow, H. Wang, Y. Wang

Research output: Contribution to journalArticlepeer-review

Abstract

Xenon-doped liquid argon has been proposed as a good alternative to pure liquid argon in scintillation detectors. In this study, we report on the measurement of the time profile of scintillation light emitted from xenon-doped liquid argon with molar concentrations up to 160 ppm. A compact setup has been developed for this study, with silicon photomultiplier (SiPM) as the photosensor and 210Po and 90Sr as scintillation sources. An effective model based on the de-excitation processes has been developed to describe the data. The results show that xenon-doped liquid argon is a good fast scintillator and can be used in lieu of tetraphenyl butadiene (TPB) in a way that preserves its capability for particle identification via pulse shape discrimination (PSD).

Original languageEnglish (US)
Article numberP02015
JournalJournal of Instrumentation
Volume16
Issue number2
DOIs
StatePublished - Feb 1 2021

All Science Journal Classification (ASJC) codes

  • Mathematical Physics
  • Instrumentation

Keywords

  • Ionization and excitation processes
  • Noble liquid detectors (scintillation, ionization, double-phase)
  • Photon detectors for UV, visible and IR photons (solid-state) (PIN diodes, APDs, Si-PMTs, G-APDs, CCDs, EBCCDs, EMCCDs, CMOS imagers, etc)
  • Scintillators, scintillation and light emission processes (solid, gas and liquid scintillators)

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