Abstract
The ICARUS T600 detector is the largest liquid argon time projection chamber (LArTPC) to be built and operated [1]. This detector was in operation in the INFN Gran Sasso underground laboratory until 2012, exposed to the CERN Neutrino to Gran Sasso (CNGS) νµ beam, performing neutrino oscillation studies. The ICARUS T600 is presently under refurbishment in order to make it suitable for surface level operation, as it will serve as the far detector for the Short-Baseline Neutrino (SBN) Program at Fermilab [2]. A major upgrade of the ICARUS detector in order to allow it to cope with a high cosmic background is the upgrade of the light collection system. The study presented here shows a simulation to optimize the PMT layout to allow for the localization and identification of interaction within the T600. An excellent performance can be obtained, with an error on the localization smaller than 20 cm and of the order of a few percent in the identification of cosmic rays.
Highlights
Light collection system aims and simulation The new ICARUS T600 light collection system aims are the generation of a light based trigger signal, the identification of the t0 of each interaction with high time precision and the identification of event topology for fast selection purposes
High detection granularity in order to localize the events with sufficient precision to associate unambiguously the collected light to the deposited charge;
Muons generated from νμ CC interactions are a superposition of the other two event topologies
Summary
1. Light collection system aims and simulation The new ICARUS T600 light collection system aims are the generation of a light based trigger signal, the identification of the t0 of each interaction with high time precision and the identification of event topology for fast selection purposes. High detection coverage, in order to be sensitive to the lowest expected neutrino energy deposition in the TPC (100 MeV), using the light fast component only;
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