Implementation of the trigger system of the ICARUS-T600 detector at Fermilab

The ICARUS-T600 liquid argon (LAr) time projection chamber (TPC) detector is currently deployed as a far detector of the Short Baseline Neutrino (SBN) program at Fermilab (USA) to search for a possible LSND-like sterile neutrino signal at Delta m(2) approximate to 1 eV(2) with the Booster (BNB) and Main Injector (NuMI) Neutrino Beams [1]. A global physical event rate of approximate to 0.6 Hz, including the genuine neutrino interactions in LAr, beam halos and cosmic interactions inside the proton pulse time windows, is expected, roughly corresponding to approximate to 4 PB of data for the total 6.6 x 10(20) protons on target exposure if the full ICARUS-T600 detector is read-out (approximate to 200 MB event size). The designed trigger system described here would collect the genuine neutrino interactions with a approximate to 95% expected efficiency.