Dr Elena Popova (Mephi)
The results of evaluation studies of high UV sensitive SiPMs produced by MEPhI/MPI operating in liquid argon. The SiPMs have PDE>50% in the wavelegth region of 350-400 nm. SiPMs were coupled with different types of WLS foils to reach high sensitivity to LAr scintillation light. The main parameters of SiPMs (PDE, noise, cross-talks, afterpulses, stability) in LAr have been thoroughly studied.