The ATLAS Data Acquisition and High Level Trigger system

Abolins M., Abreu R., Achenbach R., Aharrouche M., Aielli G., Al-Shabibi A., ...More

JOURNAL OF INSTRUMENTATION, vol.11, 2016 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 11
  • Publication Date: 2016
  • Doi Number: 10.1088/1748-0221/11/06/p06008
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Keywords: Control and monitor systems online, Data acquisition concepts, Online farms and, online filtering, Trigger concepts and systems (hardware and software), LHC, PERFORMANCE, ELECTRONICS, FRAMEWORK, DETECTOR
  • Middle East Technical University Affiliated: Yes


This paper describes the data acquisition and high level trigger system of the ATLAS experiment at the Large Hadron Collider at CERN, as deployed during Run 1. Data flow as well as control, configuration and monitoring aspects are addressed. An overview of the functionality of the system and of its performance is presented and design choices are discussed.