Year: 2025
Type: conference-paper
Abstract: The NUTRIG project is dedicated to the development of advanced radio self-trigger methods for large-scale arrays such as the Giant Radio Array for Neutrino Detection (GRAND). The developed techniques are based on features of the radio emission of air showers to perform an efficient online rejection of background. We first describe a first-level trigger (FLT) template-matching method that uses the shape of transient radio pulses measured at the detection-unit level to target those induced by air showers. We present trigger efficiencies and throughput tests of the template-matching FLT in controlled laboratory conditions. Next, we describe the second-level trigger (SLT), which utilizes the measured FLT times and corresponding voltage amplitudes to construct a trigger at the array level. We present offline performances of the SLT, which performs a coarse reconstruction of timing, direction, and polarization of the air shower.
DOI: 10.22323/1.501.0229
Authors: Pablo Correa, Jelena Köhler
Language: English
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: hybrid
Funders: National Science Foundation, Villum Fonden, Deutsche Forschungsgemeinschaft, Agence Nationale de la Recherche, Coordenação de Aperfeiçoamento de Pessoal de Nível Superior, Chinese Academy of Sciences, Centre National d’Etudes Spatiales, Conselho Nacional de Desenvolvimento Científico e Tecnológico, China Scholarship Council, Fundação Carlos Chagas Filho de Amparo à Pesquisa do Estado do Rio de Janeiro, Centre National de la Recherche Scientifique, Narodowa Agencja Wymiany Akademickiej, Sorbonne Université, Institut National de Physique Nucléaire et de Physique des Particules, National Astronomical Observatories, Chinese Academy of Sciences
Awards: G1228348679, Astroparticles and pulsars: connections from low to ultrahigh energies, G196419191, G2293383998, New trigger: novel techniques for pure, efficient and scalable autonomous radio detection of high energy neutrinos and cosmic rays, NUTRIG: neuartige Methoden für reine, effiziente und skalierbare autonome Radiodetektion hochenergetischer Neutrinos und kosmischer Strahlung, G430030528, G4409852737, G6141822678, G6649312515, G7321284446, G8543737702, LEAPS-MPS: Unveiling the Ultra-High-Energy Universe with the Giant Radio Array for Neutrino Detection (GRAND), G8747812308, G92209578
OpenAlex ID: W4414420605