CERN Accelerating science

ATLAS Slides
Report number	ATL-DAQ-SLIDE-2012-530
Title	The Upgrade of the ATLAS Level-1 Central Trigger Processor
Author(s)	ANDERS, G (Ruprecht-Karls-Universitaet Heidelberg (DE)) ; BERGE, D (CERN) ; BERTELSEN, H (University of Copenhagen (DK)) ; DAM, M (University of Copenhagen (DK)) ; DOBSON, E (CERN) ; ELLIS, N (CERN) ; FARTHOUAT, P (CERN) ; GABALDON RUIZ, C (CERN) ; GHIBAUDI, M (CERN) ; GORINI, B (CERN) ; HAAS, S (CERN) ; KANEDA, Mi (CERN) ; MESSINA, A (CERN) ; PAULY, T (CERN) ; POTTGEN, R (CERN) ; SPIWOKS, R (CERN) ; WENGLER, T (CERN) ; MAETTIG, S (Hamburg University (DE)) ; STOCKTON, M (McGill University (CA)) ; XELLA, S (Niels Bohr Inst. Astr., Phys, & Geo-University of Copenhagen)
Corporate author(s)	The ATLAS collaboration
Submitted to	Topical Workshop on Electronics for Particle Physics, Oxford, UK, 17 - 21 Sep 2012
Submitted by	stefan.haas@cern.ch on 17 Sep 2012
Subject category	Detectors and Experimental Techniques
Accelerator/Facility, Experiment	CERN LHC ; ATLAS
Free keywords	ATLAS ; Trigger ; CTP ; Upgrade
Abstract	The ATLAS Level-1 Central Trigger Processor (CTP) combines information from calorimeter and muon trigger processors as well as other sources and makes the final Level-1 Accept (L1A) decision. Due to the increasing luminosity of the LHC and the growing demands of physics and monitoring placed on the ATLAS Level-1 trigger system, the current CTP has reached its design limits. Therefore and in order to provide some margin for future operation, the CTP will be upgraded during the LHC shutdown of 2013/14.