Speaker
Description
The XLZD observatory will be a next-generation, multi-tonne xenon detector capable of probing dark matter and neutrino physics at unprecedented sensitivity.
Reaching the anticipated sensitivities requires extremely pure xenon, so that rare-event ionisation signals are not degraded by capture in electronegative impurities diffusing in the liquid. Achieving this purity relies on advanced purification techniques, continuous recirculation, and dedicated purity monitoring systems.
Conventional LXe purity monitoring modules are bulky and must be placed outside the sensitive detector volume. A novel approach with minimal footprint and scalability is the use of carbon nanotube-based sensors that can be placed directly in the instrumented volume.
In this poster, I will present the current R&D efforts at KIT on developing purity sensors based on single-layer carbon nanotubes, along with the status of their design and production, as a step towards novel purity-sensing technologies for future LXe-TPCs.