Left: one of four DUNE far detector modules, which holds 17 kiloton of liquid argon. The total active volume to detect neutrino interactions is 40 kiloton from all four modules combined. Right: expected sensitivity of DUNE for possible CP violation phase.
Left: Proto-DUNE SP detector has collected valuable data at CERN using test beam, for which the type and momentum of incoming particle is measured accurately using sub-detectors independently. This allows to benchmark the capability of the prototype and thus provides critical input to a performance study of the future DUNE detector. Middle: a proton trajectory measured in Prototype-DUNE SP. Right: energy deposition profile of a proton trajectory as a function of the residual range, useful for particle type identification.
DUNE-ND LArTPC detector will consist of many small TPC modules. Left: a small-scale prototype module constructed for testing at SLAC. Middle: an image of simulated "neutrino pile-up" in the DUNE-ND LArTPC detector, courtesy of Patrick Koller (University of Bern). Rectangular grids show individual TPC module. Right: cryogenic facility built for the DUNE-ND R&D activities at SLAC.