Particle detection and identification in astroparticle physics heavily rely on light detection. From dark matter searches to neutrino physics, the study of photons produced in particle interactions is crucial to further our understanding of these very precise detectors and to identify the rare signals they are looking for. After providing an overview of the light detection techniques in...
Silicon photomultiplier (SiPM) has a low radioactivity, compact geometry, low operation voltage, and good photo-detection efficiency for vacuum ultraviolet light (VUV). Therefore it is expected to replace photomultiplier tubes (PMTs) for future dark matter experiments with liquid xenon (LXe) such as DARWIN/XLZD. However, SiPM has nearly two orders of magnitude higher dark count rate (DCR)...
Burst effect of Silicon Photomultiplier (SiPM) at cryogenic temperatures have been discovered few years ago looking at the dark count rate of SiPMs at liquid nitrogen temperatures. A burst consists in trains of consecutive avalanche events, characterized by a rate that is about 100 times that of the single-event uncorrelated dark counts, and results in an overall increase of the DCR. Burst...
GRAIN (GRanular Argon for Interaction of Neutrinos) is a Liquid Argon detector which is part of the Near Detector complex of DUNE experiment.
Most conventional noble liquid detectors employ scintillation light as either a timing signal for a TPC or as a calorimetric measurement, or both. Its relative amplitude and timing on multiple detectors can also be used to approximately locate an...
The LZ experiment, the largest liquid xenon time-projection chamber (TPC) built to date, continues to provide world leading sensitivity to WIMP dark matter candidates. In this talk, I will present the most recent results searching for WIMP dark matter from the combined 2022-2024 exposure. In addition to the increased exposure, the latest result showcases a number of refinements to LZ’s...
Silicon photomultipliers (SiPM) have gained significant traction as an alternative technology to the well-established photomultiplier tube (PMT), with numerous high-sensitivity experiments adopting them either complementarily or as a replacement for PMTs. SiPMs are an ideal match for low-background cryogenic applications, such as massive noble liquid experiments for dark matter direct...
