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Title: Triplet lifetime in gaseous argon

Journal Article · · European Physical Journal. A
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The MiniCLEAN is a single-phase liquid argon dark matter experiment. During the initial cooling phase, impurities within the cold gas ( $<140 K$) were monitored by measuring the scintillation light triplet lifetime, and ultimately a triplet lifetime of $3.480±0.001(stat.) ±0.064(sys.)$ μs was obtained, indicating ultra-pure argon. This is the longest argon triplet time constant ever reported. The effect of quenching of separate components of the scintillation light is also investigated.

Research Organization:
Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
Sponsoring Organization:
USDOE Laboratory Directed Research and Development (LDRD) Program
Contributing Organization:
MiniCLEAN collaboration
Grant/Contract Number:
89233218CNA000001
OSTI ID:
1572340
Report Number(s):
LA-UR-19-30575
Journal Information:
European Physical Journal. A, Journal Name: European Physical Journal. A Journal Issue: 10 Vol. 55; ISSN 1434-6001
Publisher:
SpringerCopyright Statement
Country of Publication:
United States
Language:
English

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