21-25 May 2012
New York City, NY, USA
US/Eastern timezone

Maintaining and improving the control and safety systems for the Electromagnetic Calorimeter of the CMS experiment

24 May 2012, 13:30
4h 45m
Rosenthal Pavilion (10th floor) (Kimmel Center)

Rosenthal Pavilion (10th floor)

Kimmel Center

Poster Online Computing (track 1) Poster Session


Diogo Raphael Da Silva Di Calafiori (Eidgenoessische Tech. Hochschule Zuerich (CH))


This paper presents the current architecture of the control and safety systems designed and implemented for the Electromagnetic Calorimeter (ECAL) of the Compact Muon Solenoid (CMS) experiment at the Large Hadron Collider (LHC). A complete evaluation of both systems performance during all CMS physics data taking periods is reported, with emphasis on how software and hardware solutions have been used to overcome limitations whilst maintaining and improving reliability and robustness. The outcomes of the CMS ECAL DCS Software Analysis Project were a fundamental step towards the integration of all control system applications and the consequent piece-by-piece software improvements allowed a smooth transition to the latest revision of the system. The ongoing task of keeping the system in-line with the CMS DCS standards, as well as with new hardware technologies and software platforms is discussed. The structure of the comprehensive support service with detailed incident logging is presented in addition to a complete test setup used for reproducing failures and for testing solutions prior to deployment into production. A correlation between the acquired experience, the development of new software tools and a reduction in the DCS support load is highlighted.

Primary authors

Diogo Raphael Da Silva Di Calafiori (Eidgenoessische Tech. Hochschule Zuerich (CH)) Guenther Dissertori (Eidgenoessische Tech. Hochschule Zuerich (CH)) Oliver Holme (Eidgenoessische Tech. Hochschule Zuerich (CH)) Serguei Zelepukin (University of Wisconsin (US)) Werner Lustermann (Eidgenoessische Tech. Hochschule Zuerich (CH))

Presentation Materials