New paper on the arXiv! In arXiv:2303.13963 my former group at UZH presents first electron drift measurements in liquid xenon with a 53 cm purity monitor in Xenoscope, a vertical DARWIN demonstrator. We present drift speed and diffusion measurements from a several-months run at 25–75 V/cm drift field. The highest electron lifetime reached was (664±23) µs. It also contains a description and the commissioning performance of the liquid recovery system BoX which was part of my PhD work. In the next phase, the purity monitor will be replaced by a 2.6 m TPC, built to directly demonstrate a drift over the full DARWIN height.

Edit 21 August 2023: The article is now published: Eur. Phys. J. C 83 717 (2023).