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CERN Document Server Pronađeno je 2,018 zapisa  1 - 10slijedećikraj  idi na zapis: Pretraživanje je potrajalo 0.44 sekundi 
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ATLAS Level-1 Calorimeter Trigger:\nStatus and Development / Bracinik, J (Birmingham U.)
The ATLAS Level-1 Calorimeter Trigger seeds all the\ncalorimeter\nbased triggers in the ATLAS experiment at LHC.\nThe inputs to the system are analogue signals of\nreduced\ngranularity, formed by summing cells from both the ATLAS Liquid\nArgon and Tile calorimeters.\nSeveral stages of analogue then\ndigital processing, largely performed in FPGAs, refine these\nsignals via configurable and flexible algorithms into identified\nphysics objects, for example electron, tau or jet candidates.\nThe complete processing chain is performed in a pipelined\nsystem at the LHC bunch-crossing frequency, and with a fixed\nlatency of about 1$\mu$s.\n\nThe first LHC run from 2009-2013 provided a varied and\nchallenging environment for first level triggers.\nWhile\nthe energy and luminosity were below the LHC design, the pile-up\nconditions were similar to the nominal conditions.\nThe physics ambitions of the experiment also tested the performance\nof the Level-1 system while keeping within the rate limits\nset by detector readout.\nThis presentation will show how the\nLevel-1 Calorimeter rose to this challenge, including the\nrate and efficiency for important physics channels.\nIt will illustrate how the flexibility of FPGAs was utilised to\nenhance the performance and that there are still more\nideas to improve the trigger performance during the current\nshutdown using the spare capacity and flexibility built into\nthe processing modules along with small hardware additions.\nFinally, the longer term upgrade plans will also be reviewed..
ATL-DAQ-PROC-2013-009. - 2013. - 7 p.
Original Communication (restricted to ATLAS) - Full text - Published version
Detaljnije - Slični zapisi
2.
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Calibration and Performance of the ATLAS Level-1 Calorimeter Trigger / Wessels, M
Summary of L1Calo calibration and performance talk for TIPP 2011 conference..
ATL-DAQ-SLIDE-2011-235.- Geneva : CERN, 2011 - 23 p. Fulltext: PDF; External link: Original Communication (restricted to ATLAS)
In : 2nd International Conference on Technology and Instrumentation in Particle Physics, Chicago, IL, USA, 9 - 14 Jun 2011
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3.
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Programmable level-1 trigger for calorimeter / Crosetto, D
SSCL-180; SSCL-P-180.- Dallas, TX : SSC, 1993 - 17 p.
In : 3rd International Conference on Calorimetry in High-energy Physics, Corpus Christi, TX, USA, 29 Sep - 2 Oct 1992, pp.553-566
Conference on Computing in High-energy Physics, San Francisco, CA, USA, 21 - 27 Apr 1994, pp.57-62 - CERN library copies
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4.
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The LHCb level-1 trigger / Wilkinson, G R
1995
In : 3rd International Workshop on B Physics at Hadron Machines, Oxford, UK, 10 - 14 Jul 1995, pp.169-174
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5.
(6)
The LHCb Level-1 Trigger / Schietinger, T
2004 - Published in : Eur. Phys. J. C 34 (2004) s419-s423
In : 4th International Symposium on LHC : Physics and Detectors, Batavia, IL, USA, 1 - 3 May 2003, pp.s419-s423
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6.
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ATLAS Level-1 Calorimeter Trigger: Status and Development / Bracinik, J
The ATLAS Level-1 Calorimeter Trigger seeds all the calorimeter-based triggers in the ATLAS experiment at LHC. The inputs to the system are analogue signals of reduced granularity, formed by summing cells from both the ATLAS Liquid Argon and Tile calorimeters. [...]
ATL-DAQ-SLIDE-2013-189.- Geneva : CERN, 2013 - 24 p. Fulltext: PDF; External link: Original Communication (restricted to ATLAS)
In : International Conference on Calorimetry for the High Energy Frontier, Paris, France, 22 - 25 Apr 2013
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7.
(6)

ATL-PHO-DAQ-99-004
© 1999-2022 CERN 		Level-1 calorimeter trigger, pre-processor MCM demonstrator.
Demonstrator Multi-Chip Module (MCM) for the pre-p [...]
12-10-1999
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8.
(5)
The ATLAS Level-1 and Level-2 trigger / Falciano, S /ATLAS Collaboration
1996
In : 4th International Workshop on B Physics at Hadron Machines : Beauty '96, Rome, Italy, 17 - 21 Jun 1996, pp.136-142
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9.
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The Readout Bus of the ATLAS Level-1 Calorimeter Trigger Pre-Processor / Schumacher, C
CERN-OPEN-2000-063.- Geneva : CERN, 1999 - 5 p. Fulltext: PDF; Published version from CERN: PDF;
In : 5th Conference on Electronics for LHC Experiments, pp.290-294
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10.
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Analoge optische Signalübertragung vom Kalorimeter zum ATLAS Level-1 Trigger / Pfeiffer, U
IHEP-96-16. - Protvino : Protvino Inst. High Energy Phys., 1996.
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