SiPM Readout of 128 nm Liquid Argon Scintillation Light Detectors
Detection of neutrinos and the search for proton decay require large volume detectors. The electrical and optical properties of liquid argon (LAr), its affordability and its availability make LAr a suitable medium for detectors with masses up to several tens of kilotons.
After an introduction to the physics scope and a conceptual overview of LAr time projection chambers I will address the relevance, challenges and requirements of 128 nm LAr scintillation light detection in large volume cryogenic detectors. I describe work on large area VUV photon detector panels with a focus on the SiPM readout and associated cryogenic tests of SiPM properties in our laboratory.