CIEMAT Publications

Abstract

The second DUNE far detector module is going to be a vertical drift (single phase) LArTPC with two active volumes of dimensions 13.5 × 6.5 × 60 m³ separated by the cathode plane. The Photon Detection System (PDS) will make use of large-sized X-ARAPUCA tiles distributed over the cathode plane (double-sided tiles with 14.8% coverage) and the longest cryostat walls (aprox. 0.7 m behind the field cage). The PDS should allow for improvements in the low energy physics range, especially regarding supernova neutrinos (aprox. 10 MeV), and allow for a fast vertex reconstruction with a resolution of at least 65 cm and calorimetric reconstruction (aprox. 10% precision) of events above 5 MeV