Description
The DUNE experiment is a long baseline neutrino oscillation experiment. The project will determine the mass hierarchy, the CP asymmetry in neutrinos and measure the neutrino oscillation parameters with unprecedented precision. DUNE will use four 17-kt modules of Liquid Argon Time Projection Chamber (LArTPC) as a far detector. In order to test and optimize the different LArTPC technologies foreseen for the modules, smaller scale prototypes have been built and operated at the CERN Neutrino Platform, such as ProtoDUNE Dual Phase. The two first modules of DUNE will be in simple phase, one with horizontal drift and the other one with vertical drift.
The ProtoDUNE Dual Phase (DP) detector is a liquid argon TPC operating in dual-phase mode. The ionized charges produced in the active liquid argon volume drift toward the surface, where it is extracted from the liquid to the gaseous argon layer, amplified in Large Electron Multiplication (LEM) device, and finally collected on PCB with a 2D segmented electrode pattern.
In 2019 and 2020, ProtoDUNE-DP was exposed to cosmic rays data. In this poster, the detector performance is presented. In particular preliminary results on the sources of noise and its filtering, the liquid argon purity and its evolution, the effective gain as a function of different operating parameters will be shown.
| Collaboration | DUNE collaboration |
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