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Development of a central trigger processor board for the advanced SiPM based camera of the CTA large-sized telescopes

Pérez-Aguilera, Alejandro; Molina-Delicado, María; Dietrich, Tanguy; Tejedor, Luis Angel; Barrio, Juan A.; Upegui, Andres; Berthet, Quentin; Buces, Jorge; Nieto, Daniel; Martín-Domínguez, Dafne; Miener, Tjark
2026
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We present ongoing work on the Central Trigger Processor board (CTPb), a trigger subsystem for the future advanced SiPM-based Large-Sized Telescope (LST) camera of the Cherenkov Telescope Array Observatory (CTAO). The camera will implement a fully digital trigger, exploiting the increased resolution to improve discrimination of low-energy γ-ray events from Night Sky Background noise. This approach aims to enhance telescope sensitivity while satisfying strict timing and data rate constraints. We describe the CTPb conceptual design and report initial results from hardware prototypes under evaluation within this next-generation trigger architecture.

Titre
Development of a central trigger processor board for the advanced SiPM based camera of the CTA large-sized telescopes
Auteur(s)/ trice(s)
Pérez-Aguilera, Alejandro (Instituto de Física de Partículas y del Cosmos, and EMFTEL Department, Universidad Complutense de Madrid (IPARCOS-UCM), Madrid, Spain)
Molina-Delicado, María (Instituto de Física de Partículas y del Cosmos, and EMFTEL Department, Universidad Complutense de Madrid (IPARCOS-UCM), Madrid, Spain)
Dietrich, Tanguy (School of Engineering, Architecture and Landscape (HEPIA), HES-SO // University of Applied Sciences and Arts Western Switzerland)
Tejedor, Luis Angel (Instituto de Física de Partículas y del Cosmos, and EMFTEL Department, Universidad Complutense de Madrid (IPARCOS-UCM), Madrid, Spain)
Barrio, Juan A. (Instituto de Física de Partículas y del Cosmos, and EMFTEL Department, Universidad Complutense de Madrid (IPARCOS-UCM), Madrid, Spain)
Upegui, Andres (School of Engineering, Architecture and Landscape (HEPIA), HES-SO // University of Applied Sciences and Arts Western Switzerland)
Berthet, Quentin (School of Engineering, Architecture and Landscape (HEPIA), HES-SO // University of Applied Sciences and Arts Western Switzerland)
Buces, Jorge (Instituto de Física de Partículas y del Cosmos, and EMFTEL Department, Universidad Complutense de Madrid (IPARCOS-UCM), Madrid, Spain)
Nieto, Daniel (Instituto de Física de Partículas y del Cosmos, and EMFTEL Department, Universidad Complutense de Madrid (IPARCOS-UCM), Madrid, Spain)
Martín-Domínguez, Dafne (Instituto de Física de Partículas y del Cosmos, and EMFTEL Department, Universidad Complutense de Madrid (IPARCOS-UCM), Madrid, Spain)
Miener, Tjark (University of Geneva, Geneva, Switzerland)
Date
2026-01
Publié dans
Journal of Instrumentation
Volume
2026, 21
Numéro
01
Pages / Numéro d'article
C01009
Publié par
Bristol, UK, IOP Publishing
Pagination & équivalents
8 p.
DOI
https://doi.org/10.1088/1748-0221/21/01/c01009
Mots-clés (libres)
trigger concepts and systems (hardware and software) ; Cherenkov detectors ; trigger algorithms
Type d'article
scientifique
Domaine
Ingénierie et Architecture
Ecole
HEPIA - Genève
Institut
inTECH - Institut d’ingénierie industrielle et informatique
Le document apparaît dans
Articles scientifiques
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