Speaker
Description
The Cherenkov Telescope Array Observatory (CTAO) is the next-generation ground-based gamma-ray instrument. Its Large-Sized Telescopes (LSTs) are specifically designed to observe the low-energy range and capture fast transient events. To enhance their capabilities, an Advanced SiPM-based Camera is currently under development and requires a robust digital trigger system. This contribution presents the status of the Central Trigger Processor Board (CTPB), the subsystem responsible for managing Level 2 and stereo triggers.
We report on the ongoing definition of the CTPB architecture and the evaluation of several technological approaches through dedicated test benches. Specifically, we explore the potential implementation of Machine Learning algorithms on FPGAs, such as Convolutional Neural Networks and clustering techniques, for efficient event discrimination. We also present preliminary tests on high-speed data transmission and discuss the assessment of different communication protocols. These studies guide the design choices for the CTPB to meet the demanding requirements of the LST Advanced Camera.