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SUMMARY:Direct detection of argon scintillation light using VUV-sensitive 
 silicon photomultipliers
DTSTART;VALUE=DATE-TIME:20210914T214000Z
DTEND;VALUE=DATE-TIME:20210914T215500Z
DTSTAMP;VALUE=DATE-TIME:20260606T142513Z
UID:indico-contribution-23@indico.physics.ucsd.edu
DESCRIPTION:Speakers: Teal Pershing (Lawrence Livermore National Lab)\nIn 
 recent decades\, argon-based particle detectors have become a widely-used 
 technology for numerous applications\, including dark matter searches and 
 neutrino measurements. For these detector designs\, WaveLength Shifters (W
 LS) such as tetraphenylbutadiene (TPB) are used to shift argon's scintilla
 tion light from the hard UV (128 nm) to visible wavelengths. In particular
 \, the use of PhotoMultiplier Tubes (PMTs) in argon-based detectors can re
 quire WLS for successful light detection and event reconstruction. Recentl
 y\, Hamamatsu has produced a line of Silicon PhotoMultipliers (SiPMs) whic
 h show appreciable photon detection efficiencies down to 100 nm\; deployin
 g such photosensors in an argon-based detector could bypass the need for w
 avelength shifting materials. This talk will present the measurement ongoi
 ng at LLNL to demonstrate direct detection of argon scintillation light us
 ing Hamamatsu's VUV-sensitive SiPMs\, as well as quantify their performanc
 e (gain\, cross-talk\, photon detection efficiency\, etc.) for future depl
 oyment in argon-based detectors.\n\nThis work was performed under the ausp
 ices of the U.S. Department of Energy by Lawrence Livermore National Labor
 atory under Contract DE-AC52-07NA27344.\n\nhttps://indico.physics.ucsd.edu
 /event/1/contributions/23/
LOCATION:
URL:https://indico.physics.ucsd.edu/event/1/contributions/23/
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