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1.
The phase-1 upgrade of the ATLAS level-1 calorimeter trigger / Ermoline, Iouri (Michigan State University, Department of Physics and Astronomy) /ATLAS Collaboration
The ATLAS level-1 calorimeter trigger (L1Calo) is a hardware-based system that identifies events containing calorimeter-based physics objects, including electrons, photons, taus, jets, and missing transverse energy. In preparation for Run 3, when the LHC will run at higher energy and instantaneous luminosity, L1Calo is currently implementing a significant programme of planned upgrades. [...]
ATL-DAQ-SLIDE-2020-066.- Geneva : CERN, 2020 - 1 p. Fulltext: PPTX; External link: Original Communication (restricted to ATLAS)
2.
The phase-1 upgrade of the ATLAS level-1 calorimeter trigger / Ermoline, Iouri (Michigan State University, Department of Physics and Astronomy)
The ATLAS level-1 calorimeter trigger (L1Calo) is a hardware-based system that identifies events containing calorimeter-based physics objects, including electrons, photons, taus, jets, and missing transverse energy. [...]
ATL-DAQ-PROC-2020-010.
- 2020. - 5 p.
Original Communication (restricted to ATLAS) - Full text
3.
Initital Upgrade of the ATLAS Level-1 Calorimeter Trigger / Ta, DB (Michigan State University)
The Level-1 calorimeter trigger (L1Calo) of the ATLAS experiment has been operating well since the start of LHC data taking and played a major role in the Higgs boson discovery. To face the new challenges posed by the upcoming increases of the LHC proton beam energy and luminosity, a series of upgrades is planned for L1Calo. [...]
ATL-DAQ-SLIDE-2014-241.- Geneva : CERN, 2014 - 1 p. Fulltext: PDF; External link: Original Communication (restricted to ATLAS)
In : Technology and Instrumentation in Particle Physics 2014, Amsterdam, Netherlands, 2 - 6 Jun 2014
4.
ATLAS level-1 calorimeter trigger: Phase-I Upgrade Performance / ATLAS Collaboration /ATLAS Collaboration
Following the Run 2 LHC data taking, the ATLAS experiment at CERN will enter the first phase (Phase-I) of the planned detector subsystem upgrades. Several systems, in particular, the hardware-based Level-1 calorimeter trigger (L1Calo) will be significantly enhanced to provide improved selectivity at the higher expected pileup in Run 3. [...]
ATL-DAQ-SLIDE-2018-725.- Geneva : CERN, 2018 - 21 p. Fulltext: PDF; External link: Original Communication (restricted to ATLAS)
In : XXXIX International Conference on High Energy Physics, Seoul, Kor, 4 - 11 Jul 2018
5.
Upgrading the ATLAS Level-1 Calorimeter Trigger using Topological Information / ERMOLINE, Yuri (MSU)
The ATLAS Level-1 Calorimeter Trigger (L1Calo) is a fixed latency, hardware-based pipelined system designed for operation at the LHC design luminosity of 10^34cm-2s-1. Plans for a several-fold luminosity upgrade will necessitate a complete replacement for L1Calo (Phase II). [...]
ATL-DAQ-SLIDE-2010-304.- Geneva : CERN, 2010 - 17 p. Fulltext: PPT; External link: Original Communication (restricted to ATLAS)
In : Topical Workshop on Electronics for Particle Physics 2010, Aachen, Germany, 20 - 24 Sep 2010
6.
Upgrading the ATLAS Level-1 Calorimeter Trigger using Topological Information / Ermoline, Y (Michigan State U.)
The ATLAS Level-1 Calorimeter Trigger (L1Calo) is a fixed latency, hardware-based pipelined system designed for operation at the LHC design luminosity of 10^34cm-2s-1 [...]
ATL-DAQ-PROC-2010-037.
- 2010. - 9 p.
Original Communication (restricted to ATLAS) - Full text - IOP Open Access Article
7.
ATLAS level-1 calorimeter trigger: Run-2 performance and Phase-1 upgrades / Carlson, Benjamin Taylor (University of Pittsburgh) ; Hong, Tae Min (University of Pittsburgh) /ATLAS Collaboration
The Run-2 performance and Phase-1 upgrade are presented for the hardware-based level-1 calorimeter trigger (L1Calo) for the ATLAS Experiment. This trigger has a latency of about 2.2 microseconds to make a decision to help ATLAS select about 100 kHz of the most interesting collisions from the nominal LHC rate of 40 MHz. [...]
ATL-DAQ-SLIDE-2017-178.- Geneva : CERN, 2017 - 23 p. Fulltext: PDF; External link: Original Communication (restricted to ATLAS)
8.
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
9.
Initial upgrade of the ATLAS Level-1 Calorimeter Trigger / Ta, DB (Michigan State U.)
The Level-1 calorimeter trigger~(L1Calo) of the ATLAS experiment has been operating well since the start of Large Hadron Collider~(LHC) data taking, and played a major role in the Higgs boson discovery. [...]
ATL-DAQ-PROC-2014-014.
- 2014. - 6 p.
Original Communication (restricted to ATLAS) - Full text
10.
Tile Rear Extension Module for the Phase-I Upgrade of the ATLAS L1Calo PreProcessor System / Andrei, George Victor (Kirchhoff-Institut f\"{u}r Physik) /ATLAS Collaboration
After the Phase-I ATLAS upgrade the Tile calorimeter will have to provide its data via fast optical links to the new Feature Extractor (FEX) modules of the L1Calo trigger system. In order to provide the FEXes with digitised Tile data, new Tile Rear Extension (TREX) modules need to be developed and installed in the existing L1Calo PreProcessor system. [...]
ATL-DAQ-SLIDE-2016-864.- Geneva : CERN, 2016 - 1 p. Fulltext: PDF; External link: Original Communication (restricted to ATLAS)
In : TWEPP 2016, Karlsruhe, Germany, 26 - 30 Sep 2016

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