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Brown Bag Instrumentation Seminar
The ATLAS FTK near real time track reconstruction system
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US/Pacific
50A-5026 (INPA)
50A-5026 (INPA)
Description
Abstract:
The spectacular performance of the LHC machine challenged the ATLAS and CMS detectors to contend with an average of 25 proton-proton interactions per beam crossing in 2012. Projections for 13 TeV running in 2016 and beyond suggest that the detectors should prepare for up to 80 interactions per crossing. In these dense environments, identifying the physics objects of interest, such as isolated leptons, taus and b-jets is of paramount importance for a successful physics program. The ATLAS experiment is developing a hardware based track finder, FTK, which will perform full silicon detector tracking within 100 microseconds of a Level 1 trigger accept at luminosities of 3x1034 cm-2 s-1, significantly improving the track-based isolation, secondary vertex tagging and track-based tau finding done at Level 2. This is achieved using a large, heterogenous system, mixing custom ASIC and FPGA based processing, as well as VME & ATCA technologies. I will discuss the FTK design, report on the ongoing system installation, and discuss the overall FTK strategy with a mention of how it connects to the High Luminosity LHC upgrades.
The spectacular performance of the LHC machine challenged the ATLAS and CMS detectors to contend with an average of 25 proton-proton interactions per beam crossing in 2012. Projections for 13 TeV running in 2016 and beyond suggest that the detectors should prepare for up to 80 interactions per crossing. In these dense environments, identifying the physics objects of interest, such as isolated leptons, taus and b-jets is of paramount importance for a successful physics program. The ATLAS experiment is developing a hardware based track finder, FTK, which will perform full silicon detector tracking within 100 microseconds of a Level 1 trigger accept at luminosities of 3x1034 cm-2 s-1, significantly improving the track-based isolation, secondary vertex tagging and track-based tau finding done at Level 2. This is achieved using a large, heterogenous system, mixing custom ASIC and FPGA based processing, as well as VME & ATCA technologies. I will discuss the FTK design, report on the ongoing system installation, and discuss the overall FTK strategy with a mention of how it connects to the High Luminosity LHC upgrades.
