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Karlsruhe 2024 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 41: Trigger+DAQ 1

T 41.1: Vortrag

Dienstag, 5. März 2024, 16:00–16:15, Geb. 30.23: 3/1

Towards an Autonomous Trigger for the Detection of Air-Shower Radio Emission — •Jelena Köhler1, Lukas Gülzow1, Tim Huege1,4, Markus Roth1, Olivier Martineau2, Pablo Correa2, Kumiko Kotera3,4, and Marion Guelfand2,31Karlsruher Institut für Technologie, Institut für Astroteilchenphysik — 2Laboratoire de physique nucléaire et des hautes énergies, Paris — 3Institut d’Astrophysique de Paris — 4Vrije Universiteit Brussel

Radio detection of air-showers has emerged as a powerful technique for high-energy cosmic ray measurements, leading to the development of a new generation of large-scale radio detectors. The Giant Radio Array for Neutrino Detection (GRAND) represents a significant advancement. It is planned as a vast array of wide-band radio antennas spanning an extensive area of 200 000 km2.

To effectively detect air-shower events in such large-scale arrays, an efficient and autonomous trigger system is needed. This presentation introduces a novel multi-level radio trigger, which is crucial for large-scale experiments like GRAND. The first-level trigger identifies potential air-shower signals at the station level. However, the true innovation lies in the second-level trigger operating at the detector level. By evaluating the time-integrated power, it makes reliable event decisions based on the scientific knowledge of radio emissions.

* NUTRIG project, supported by the ANR-DFG Funding Programme (DFG Projektnummer 490843803)

Keywords: GRAND; trigger; radio emissions; cosmic rays; air showers

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