A dual-phase xenon TPC for scintillation and ionisation yield measurements in liquid xenon.

A small-scale, two-phase (liquid/gas) xenon time projection chamber () was designed, constructed and is under operation at the University of Zürich. Its main purpose is to investigate the microphysics of particle interactions in liquid xenon at energies below 50 keV, which are relevant for rare event searches using xenon as target material. Here we describe in detail the detector, its associated infrastructure, and the signal identification algorithm developed for processing and analysing the data.