Arrays of Cherenkov telescopes typically use multi-level trigger schemes to keep the rate of random triggers from the night sky background low. At a first stage, individual telescopes produce a trigger signal from the pixel information in the telescope camera. The final event trigger is then formed by combining trigger signals from several telescopes. In this poster, we present a possible scheme for the Cherenkov Telescope Array telescope trigger, which is based on the analog pulse information of the pixels in a telescope camera. Advanced versions of all components of the system have been produced and working prototypes have been tested, showing a performance that meets the original specifications. Finally, issues related to integrating the trigger system in a telescope camera and in the whole array will be dealt with.
@article{arxiv.1307.3169,
title = {An Analog Trigger System for Atmospheric Cherenkov Telescopes},
author = {M. Barcelo and J. A. Barrio and O. Blanch Bigas and J. Boix and C. Delgado and D. Herranz and R. Lopez-Coto and G. Martinez and L. A. Tejedor},
journal= {arXiv preprint arXiv:1307.3169},
year = {2019}
}
Comments
In Proceedings of the 33rd International Cosmic Ray Conference (ICRC2013), Rio de Janeiro (Brazil). All CTA contributions at arXiv:1307.2232