2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/196431The Neutrinos at the Main Injector (NuMI) beamline will deliver an intense muon neutrino beam by focusing a beam of mesons into a long evacuated decay volume. We have built 4 arrays of ionization chambers to monitor the neutrino beam direction and quality. The arrays are located at 4 stations downstream of the decay volume, and measure the remnant hadron beam and tertiary muons produced along with neutrinos in meson decays.Instrumentation and DetectorsHigh Energy Physics - ExperimentAccelerator Physicstext