ProtoDUNE detector

CERN’s EHN1 test facility in the north area of the Prévessin site houses the two ProtoDUNE detectors. The two prototypes test different concepts of the future Deep Underground Neutrino Experiment (DUNE) detector. Despite their large dimensions, they are mini models of the four DUNE far detectors. This is the NP04 cryostat, the horizontal drift one. Here the detectors and the cathode are placed vertically, and the detector type is not CRP but APA (Anode Plane Assembly).