Fast component re-emission in Xe-doped liquid argon

Fast component re-emission in Xe-doped liquid argon

We present the first direct experimental confirmation of the fast component re-emission in liquid argon (LAr) doped with xenon (Xe). This effect was studied at various Xe concentrations up to ∼3000 ppm. The rate constant of energy transfer for the fast component was quantified. It was shown that LAr...

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Veröffentlicht in:Journal of instrumentation 2019-09, Vol.14 (9), p.P09022-P09022, Article P09022
Hauptverfasser: Akimov, D., Belov, V., Konovalov, A., Kumpan, A., Razuvaeva, O., Rudik, D., Simakov, G.
Format: Artikel
Sprache:eng
Schlagworte:
Argon
Emission
Energy transfer
Pulse shape
Xenon
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Zusammenfassung:We present the first direct experimental confirmation of the fast component re-emission in liquid argon (LAr) doped with xenon (Xe). This effect was studied at various Xe concentrations up to ∼3000 ppm. The rate constant of energy transfer for the fast component was quantified. It was shown that LAr doped with a high concentration of Xe without TPB has a better Pulse Shape Discrimination (PSD) efficiency than pure LAr or Xe-doped LAr with TPB. The stability of LAr+Xe mixture was tested for the first time at high Xe concentration for long continuous runtimes.
ISSN:1748-0221
1748-0221
DOI:10.1088/1748-0221/14/09/P09022