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Enhancement of the ATLAS Trigger System with a Hardware Tracker Finder FTK

The existing three level ATLAS trigger system is deployed to reduce the event rate from the bunch crossing rate of 40 MHz to ~200 Hz for permanent storage at the LHC design luminosity of 10^34 cm^2 s^1. When the LHC reaches beyond the design luminosity, the load on the Level2 trigger system will sig...

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Autor principal: Zhang, J
Lenguaje:eng
Publicado: 2010
Materias:
Acceso en línea:http://cds.cern.ch/record/1292807
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author Zhang, J
author_facet Zhang, J
author_sort Zhang, J
collection CERN
description The existing three level ATLAS trigger system is deployed to reduce the event rate from the bunch crossing rate of 40 MHz to ~200 Hz for permanent storage at the LHC design luminosity of 10^34 cm^2 s^1. When the LHC reaches beyond the design luminosity, the load on the Level2 trigger system will significantly increase due to both the need for more sophisticated algorithms to suppress background and the larger event sizes. The Fast Tracker (FTK) is a proposed upgrade to the current ATLAS trigger system that will operate at the full Level1 accepted rate of 100 KHz and provide high quality tracks at the beginning of processing in the Level2 trigger, by performing track reconstruction in hardware with massive parallelism of associative memories. The system design is being advanced and justified with the performance in important physics areas, btagging, tautagging and lepton isolation. The system requirement and capability are being evaluated with the ATLAS MC simulation at different LHC luminosities. The prototyping with current technology is undergoing and the R&D with new technologies has been started.
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institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2010
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spelling cern-12928072019-09-30T06:29:59Zhttp://cds.cern.ch/record/1292807engZhang, JEnhancement of the ATLAS Trigger System with a Hardware Tracker Finder FTKDetectors and Experimental TechniquesThe existing three level ATLAS trigger system is deployed to reduce the event rate from the bunch crossing rate of 40 MHz to ~200 Hz for permanent storage at the LHC design luminosity of 10^34 cm^2 s^1. When the LHC reaches beyond the design luminosity, the load on the Level2 trigger system will significantly increase due to both the need for more sophisticated algorithms to suppress background and the larger event sizes. The Fast Tracker (FTK) is a proposed upgrade to the current ATLAS trigger system that will operate at the full Level1 accepted rate of 100 KHz and provide high quality tracks at the beginning of processing in the Level2 trigger, by performing track reconstruction in hardware with massive parallelism of associative memories. The system design is being advanced and justified with the performance in important physics areas, btagging, tautagging and lepton isolation. The system requirement and capability are being evaluated with the ATLAS MC simulation at different LHC luminosities. The prototyping with current technology is undergoing and the R&D with new technologies has been started.ATL-DAQ-SLIDE-2010-307oai:cds.cern.ch:12928072010-09-20
spellingShingle Detectors and Experimental Techniques
Zhang, J
Enhancement of the ATLAS Trigger System with a Hardware Tracker Finder FTK
title Enhancement of the ATLAS Trigger System with a Hardware Tracker Finder FTK
title_full Enhancement of the ATLAS Trigger System with a Hardware Tracker Finder FTK
title_fullStr Enhancement of the ATLAS Trigger System with a Hardware Tracker Finder FTK
title_full_unstemmed Enhancement of the ATLAS Trigger System with a Hardware Tracker Finder FTK
title_short Enhancement of the ATLAS Trigger System with a Hardware Tracker Finder FTK
title_sort enhancement of the atlas trigger system with a hardware tracker finder ftk
topic Detectors and Experimental Techniques
url http://cds.cern.ch/record/1292807
work_keys_str_mv AT zhangj enhancementoftheatlastriggersystemwithahardwaretrackerfinderftk