Cargando…
A Hardware Fast Tracker for the ATLAS trigger
The trigger system of the ATLAS experiment is designed to reduce the event rate from the LHC nominal bunch crossing at 40 MHz to about 1 kHz, at the design luminosity of 10^{34} cm^{-2}s^{-1}. After a successful period of data taking from 2010 to early 2013, the LHC restarted with much higher instan...
Autores principales: | , |
---|---|
Lenguaje: | eng |
Publicado: |
2015
|
Materias: | |
Acceso en línea: | http://cds.cern.ch/record/2061412 |
_version_ | 1780948491849170944 |
---|---|
author | Asbah, Nedaa ATLAS Collaboration |
author_facet | Asbah, Nedaa ATLAS Collaboration |
author_sort | Asbah, Nedaa |
collection | CERN |
description | The trigger system of the ATLAS experiment is designed to reduce the event rate from the LHC nominal bunch crossing at 40 MHz to about 1 kHz, at the design luminosity of 10^{34} cm^{-2}s^{-1}. After a successful period of data taking from 2010 to early 2013, the LHC restarted with much higher instantaneous luminosity. This will increase the load on High Level Trigger system, the second stage of the selection based on software algorithms. More sophisticated algorithms will be needed to achieve higher background rejection while maintaining good efficiency for interesting physics signals. The Fast TracKer (FTK) is part of the ATLAS trigger upgrade project; it is a hardware processor that will provide, at every level-1 accepted event (100 kHz) and within 100 microseconds, full tracking information for tracks with momentum as low as 1 GeV. Providing fast extensive access to tracking information, with resolution comparable to the offline reconstruction, FTK will help in precise detection of the primary and secondary vertices, to ensure robust selections and improve the trigger performance. FTK exploits hardware technologies with massive parallelism, combining Associative Memory ASICs, FPGAs and high speed communication links. |
id | cern-2061412 |
institution | Organización Europea para la Investigación Nuclear |
language | eng |
publishDate | 2015 |
record_format | invenio |
spelling | cern-20614122019-09-30T06:29:59Zhttp://cds.cern.ch/record/2061412engAsbah, NedaaATLAS CollaborationA Hardware Fast Tracker for the ATLAS triggerParticle Physics - ExperimentThe trigger system of the ATLAS experiment is designed to reduce the event rate from the LHC nominal bunch crossing at 40 MHz to about 1 kHz, at the design luminosity of 10^{34} cm^{-2}s^{-1}. After a successful period of data taking from 2010 to early 2013, the LHC restarted with much higher instantaneous luminosity. This will increase the load on High Level Trigger system, the second stage of the selection based on software algorithms. More sophisticated algorithms will be needed to achieve higher background rejection while maintaining good efficiency for interesting physics signals. The Fast TracKer (FTK) is part of the ATLAS trigger upgrade project; it is a hardware processor that will provide, at every level-1 accepted event (100 kHz) and within 100 microseconds, full tracking information for tracks with momentum as low as 1 GeV. Providing fast extensive access to tracking information, with resolution comparable to the offline reconstruction, FTK will help in precise detection of the primary and secondary vertices, to ensure robust selections and improve the trigger performance. FTK exploits hardware technologies with massive parallelism, combining Associative Memory ASICs, FPGAs and high speed communication links.ATL-DAQ-PROC-2015-045oai:cds.cern.ch:20614122015-10-21 |
spellingShingle | Particle Physics - Experiment Asbah, Nedaa ATLAS Collaboration A Hardware Fast Tracker for the ATLAS trigger |
title | A Hardware Fast Tracker for the ATLAS trigger |
title_full | A Hardware Fast Tracker for the ATLAS trigger |
title_fullStr | A Hardware Fast Tracker for the ATLAS trigger |
title_full_unstemmed | A Hardware Fast Tracker for the ATLAS trigger |
title_short | A Hardware Fast Tracker for the ATLAS trigger |
title_sort | hardware fast tracker for the atlas trigger |
topic | Particle Physics - Experiment |
url | http://cds.cern.ch/record/2061412 |
work_keys_str_mv | AT asbahnedaa ahardwarefasttrackerfortheatlastrigger AT atlascollaboration ahardwarefasttrackerfortheatlastrigger AT asbahnedaa hardwarefasttrackerfortheatlastrigger AT atlascollaboration hardwarefasttrackerfortheatlastrigger |