Triplet lifetime in gaseous argon
M Akashi-Ronquest, A Bacon, C Benson… - The European Physical …, 2019 - Springer
M Akashi-Ronquest, A Bacon, C Benson, K Bhattacharya, T Caldwell, JA Formaggio…
The European Physical Journal A, 2019•SpringerMiniCLEAN is a single-phase liquid argon dark matter experiment. During the initial cooling
phase, impurities within the cold gas (<140< 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.) 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.
phase, impurities within the cold gas (<140< 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.) 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.
Abstract
MiniCLEAN is a single-phase liquid argon dark matter experiment. During the initial cooling phase, impurities within the cold gas ( K) were monitored by measuring the scintillation light triplet lifetime, and ultimately a triplet lifetime of 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.
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