Work

Back-end DAQ system prototype testing and integration on a full detector test system for the CMS HGCAL detector

Year: 2025

Type: article

Abstract: The CMS Collaboration will replace its current endcap calorimeters with the new high granularity calorimeter (HGCAL) for operations at the HL-LHC. The HGCAL back-end DAQ (Data Acquisition) system comprises 96 FPGA-based ATCA (Advanced Telecommunications Computing Architecture) boards, each processing data from 108 input optical fibres operating at 10 Gb/s. This paper describes in detail the architecture and prototyping of the elementary unit in the back-end DAQ system of the HGCAL. We then describe and evaluate its integration and performance in a full detector test system. The resulting system provides an average data acquisition throughput at the detector's nominal rate of 750 k events per second.

Source: Journal of Instrumentation

DOI: 10.1088/1748-0221/20/03/c03028