nEXO charge tile characterization and simulation validation studies with the Stanford TPC

nEXO is a proposed tonne-scale experiment aiming to search for neutrinoless double-beta decay. The detector is based on a single-phase time projection chamber (TPC) filled with close to 5000kg of xenon enriched to 90% in the isotope 136. Particular attention is given to the development of the anode, consisting of charge collecting strips deposited in silica "tiles". In this configuration, along with the collected charge, the induction signal can be detected and studied, potentially leading to a precise energy reconstruction. The pulse shape of the inductive part of the signal contains information that may be used to enhance the discrimination between signal from background. A dedicated 14cm drift length TPC has been built to characterize a prototype tile in liquid xenon using 220Rn as a source. Latest results from this setup will be shown, including simultaneous light/charge detection and the study of charge pulse shape analysis. Comparisons with simulations will also be discussed.