Lighting up the dark with avalanching electrons

Noble liquid detectors employing liquid xenon or liquid argon as their target material are at the forefront of current direct searches for dark matter Since their sensitivity scales as the noble liquid mass progressively larger detectors are being designed and deployed setting increasingly more challenging requirements for their realization I discuss two concepts developed at the Weizmann Institute for detection techniques which may allow for significant improvements in the design of future multi ton noble liquid detectors: cryogenic gaseous photomultipliers GPMs and liquid hole mult