Electric Field Simulations for Proto-DUNE Far-Side Detector*

The Deep Underground Neutrino Experiment (DUNE is an international project to study neutrino interaction. The purpose of studying these interactions is to understand the properties and behavior of the neutrino. the Is now preparing to construct a 15x15x66 meter detector. The detectors largest feature is a series of aluminum rings equally spaced 3cm apart that form a cubic structure. A potential difference of 600 kV between the upper most ring and the cathode at the bottom of the detector is utilized to create a uniform electric field of 500 v/cm within the detector. The cathode is divided into a grid of mechanically connected individual square components. Simulations of the detector gives insight to how the electric field will behave. Using COMSOL Multiphysics, a detailed electric field distribution is produced to study. These simulations are used to ensure the current geometry of components does not interact negatively with the intended field. Any imperfections in the design or production of the detector’s components are then identified. Information produced using COMSOL is used to determine the details in the detectors final structure.