Triplet lifetime in gaseous argon

• Main Authors: Akashi-Ronquest, Michael (Author), Bacon, Amanda (Author), Benson, Christopher (Author), Bhattacharya, Kolahal (Author), Caldwell, Thomas (Author), Formaggio, Joseph A (Author), Gastler, Dan (Author), Grado-White, Brianna (Author), Griego, Jeff (Author), Gold, Michael (Author), Hime, Andrew (Author), Jackson, Christopher M. (Author), Jaditz, Stephen Hunter (Author), Kachulis, Chris (Author), Kearns, Edward (Author), Klein, Joshua R. (Author), Ledesma, Antonio (Author), Linden, Steve (Author), Lopez, Frank (Author), MacMullin, Sean (Author), Mastbaum, Andrew (Author), Monroe, Jocelyn (Author), Nikkel, James (Author), Oertel, John (Author), Orebi Gann, Gabriel D. (Author), Ortega, Gabriel S. (Author), Palladino, Kimberly J. (Author), Rielage, Keith (Author), Seibert, Stanley R. (Author), Wang, Jui-Jen (Author)
• Other Authors: Massachusetts Institute of Technology. Department of Nuclear Science and Engineering (Contributor), Massachusetts Institute of Technology. Laboratory for Nuclear Science (Contributor), Massachusetts Institute of Technology. Department of Physics (Contributor)
• Format: Article
• Language: English
• Published: Springer Science and Business Media LLC, 2021-01-08T16:00:38Z.
• Subjects: Article
• Online Access: Get fulltext

 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.