Mr Thomas Warburton (University of Sheffield, UK)
The Deep Underground Neutrino Experiment (DUNE), will look for CP violation in the neutrino sector, attempt to measure neutrino mass hierarchy and determine the quadrant of θ23, in addition to searching for proton decay and supernovae neutrinos. The total fiducial mass will be 40 kt of Liquid Argon (LAr), built in 4 staged 10 kt modules, each representing a ~15 times increase in mass from existing LAr experiments. As such a significant prototyping effort is required to overcome numerous problems related to scaling up to detectors of this size. The first results of one such prototype, ‘the 35 ton’, will be shown as well as an overview of the fulfillment of its design goals. These goals are; to measure the effect of a modular design on reconstruction, the efficacy with which photon detectors can be integrated into a Time Projection Chamber (TPC), the effect of digitizing the TPC output at cryogenic temperatures and the ability to install a TPC into a membrane cryostat.