Ponente
Descripción
The 2nd Far Detector of the Deep Underground Neutrino Experiment (DUNE) will be instrumented with a Vertical Drift Liquid Argon Time Projection Chamber (VD LAr TPC). The geometry of this TPC requires a different design of the Photo-Detection System (PDS). By installing xArapuca photo-detectors both on the walls of the cryostat and on the cathode of the TPC, it is possible to achieve an excellent coverage and light-yields that can open the door to extended physics capabilities.
While the photo-detectors on the walls can be powered and read out using copper cables, the placement of detectors on the high-voltage surface has required the development of a novel approach to powering and readout using non-conductive materials. The final design of the VD PDS has converged towards a combination of more traditional cryogenic electronics with innovative laser-based cryogenic powering and transmission technologies, which have been developed for this detector. This talk will present the Power-over-Fiber and Signal-over-Fiber developments, the latest status of the detector design, and the results of the prototyping campaigns.
