Speaker
Description
To control the systematic uncertainties in its neutrino oscillation analyses, the Deep Underground Neutrino Experiment (DUNE) incorporates a near detector complex, which notably comprises ND-LAr, a 150-ton liquid argon time projection chamber. It is designed as a 7-by-5 array of optically segmented modules equipped with a novel pixelated charge readout system and a high-coverage light detection system to be able to cope with the high neutrino interaction rates from the unprecedentedly high DUNE beam power. To accomplish this and demonstrate the viability of this technology, several ton-scale prototypes have been constructed including the 2x2 demonstrator, situated in the NuMI beamline at Fermilab, and the full-scale demonstrator that collected cosmic ray data. In this talk, I will present the ND-LAr design and discuss the operations and results from its various prototypes.
