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The ATLAS Level-1 Calorimeter Trigger: PreProcessor implementation and performance
/ Asman, B (Stockholm U.) ; Achenbach, R (Kirchhoff Inst. Phys.) ; Allbrooke, B M M (Birmingham U.) ; Anders, G (Kirchhoff Inst. Phys.) ; Andrei, V (Kirchhoff Inst. Phys.) ; Buscher, V (Mainz U., Inst. Phys.) ; Bansil, H S (Birmingham U.) ; Barnett, B M (Rutherford) ; Bauss, B (Mainz U., Inst. Phys.) ; Bendtz, K (Stockholm U.) et al.
The PreProcessor system of the ATLAS Level-1 Calorimeter Trigger (L1Calo) receives about 7200 analogue signals from the electromagnetic and hadronic components of the calorimetric detector system. Lateral division results in cells which are pre-summed to so-called Trigger Towers of size 0.1 × 0.1 along azimuth (phi) and pseudorapidity (η). [...]
2012
- Published in : JINST 7 (2012) P12008
IOP Open Access article: PDF;
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ATLAS Level-1 Calorimeter Trigger : Subsystem Tests of a Prototype Cluster Processor Module
/ Garvey, J (Birmingham U.) ; Achenbach, R (Kirchhoff Inst. Phys.) ; Apostologlou, P (Rutherford) ; Ay, C (Mainz U., Inst. Phys.) ; Barnett, B M (Rutherford) ; Bauss, B (Mainz U., Inst. Phys.) ; Brawn, I P (Rutherford) ; Bohm, C (Stockholm U.) ; Dahlhoff, A (Mainz U., Inst. Phys.) ; Davis, A O (Rutherford) et al.
The Level-1 Calorimeter Trigger consists of a Preprocessor (PP), a Cluster Processor (CP), and a Jet/Energy-sum Processor (JEP). The CP and JEP receive digitised trigger-tower data from the Preprocessor and produce trigger multiplicity and Region-of-Interest (RoI) information. [...]
ATL-DAQ-2003-051.-
Geneva : CERN, 2003 - 5 p.
Access to fulltext: PDF; Published version from CERN: PDF;
In : 9th Workshop on Electronics for LHC Experiments, Amsterdam, The Netherlands, 29 Sep - 3 Oct 2003, pp.230-234 (CERN-2003-006)
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3.
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ATLAS Level-1 Calorimeter Trigger
: Subsystem Tests of a Jet/Energy-sum Processor Module
/ Garvey, J (Birmingham U.) ; Hillier, S J (Birmingham U.) ; Mahout, G (Birmingham U.) ; Moye, T H (Birmingham U.) ; Staley, R J (Birmingham U.) ; Watkins, P M (Birmingham U.) ; Watson, A T (Birmingham U.) ; Achenbach, R (Kirchhoff Inst. Phys.) ; Hanke, P (Kirchhoff Inst. Phys.) ; Kluge, E E (Kirchhoff Inst. Phys.) et al.
The ATLAS Level-1 Calorimeter Trigger consists of a Preprocessor, a Cluster Processor (CP), and a Jet/Energy-sum Processor (JEP). [...]
ATL-DAQ-2003-055.
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2004. - 5 p.
Access to fulltext - Access to fulltext - Access to fulltext
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4.
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The ATLAS Level-1 Calorimeter Trigger Architecture
/ Garvey, J (Birmingham U.) ; Hillier, S J (Birmingham U.) ; Mahout, G (Birmingham U.) ; Moye, T H (Birmingham U.) ; Staley, R J (Birmingham U.) ; Watkins, P M (Birmingham U.) ; Watson, A T (Birmingham U.) ; Achenbach, R (Kirchhoff Inst. Phys.) ; Hanke, P (Kirchhoff Inst. Phys.) ; Kluge, E E (Kirchhoff Inst. Phys.) et al.
The architecture of the ATLAS Level-1 Calorimeter Trigger system (L1Calo) is presented. [...]
ATL-DAQ-2003-035.
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2004. - 5 p.
Fulltext - Fulltext
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High Density Backplanes
: Problems and Solutions
/ Achenbach, R (Heidelberg U.) ; Andrei, V (Heidelberg U.) ; Barnett, B M (Rutherford) ; Bauss, B (Mainz U., Inst. Phys.) ; Bohm, C (Stockholm U.) ; Booth, J R A (Birmingham U.) ; Brawn, I P (Rutherford) ; Charlton, D G (Birmingham U.) ; Curtis, C J (Birmingham U.) ; Davis, A O (Rutherford) et al.
The backplane and crate infrastructure for the digital processors of the ATLAS Level-1 Calorimeter Trigger (L1Calo) are presented, The L1Calo system is a compact, high-performance real-time system based on a custom, monolithic 9U backplane populated almost completely with 2mm Hard Metric connectors [...]
ATL-COM-DAQ-2006-027.
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CERN, 2007.
Access to fulltext document - Access to fulltext document - Access to fulltext document - Published version from CERN
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Calorimetry triggering in ATLAS
/ Igonkina, O (NIKHEF, Amsterdam) ; Achenbach, R (Kirchhoff Inst. Phys.) ; Adragna, P (Queen Mary, U. of London) ; Aharrouche, M (Mainz U., Inst. Phys.) ; Alexandre, G (Geneva U.) ; Andrei, V (Kirchhoff Inst. Phys.) ; Anduaga, X (La Plata U.) ; Aracena, I (SLAC) ; Backlund, S (CERN) ; Baines, J (Rutherford) et al.
The ATLAS experiment is preparing for data taking at 14 TeV collision energy. A rich discovery physics program is being prepared in addition to the detailed study of Standard Model processes which will be produced in abundance. [...]
2009
- Published in : J. Phys.: Conf. Ser. 160 (2009) 012061
In : 13th International Conference on Calorimetry in High Energy Physics, Pavia, Italy, 26 May - 30 May 2008, pp.012061
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Test results for the Jet/Energy Processor of the ATLAS Level-1 Calorimeter Trigger
/ Garvey, J (Birmingham U.) ; Achenbach, R (Kirchhoff Inst. Phys.) ; Apostologlou, P (Rutherford) ; Ay, C (Mainz U., Inst. Phys.) ; Barnett, B M (Rutherford) ; Bauss, B (Mainz U., Inst. Phys.) ; Brawn, I P (Rutherford) ; Bohm, C (Stockholm U.) ; Dahlhoff, A (Mainz U., Inst. Phys.) ; Davis, A O (Rutherford) et al.
The Jet/Energy-sum Processor is one of three processing units of the ATLAS Level-1 Calorimeter Trigger. It identifies and finds the location of jets, and sums total and missing transverse energy information from the trigger data. [...]
ATL-DAQ-2003-049.-
Geneva : CERN, 2003 - 5 p.
Access to fulltext: PDF; Published version from CERN: PDF;
In : 9th Workshop on Electronics for LHC Experiments, Amsterdam, The Netherlands, 29 Sep - 3 Oct 2003, pp.235-239 (CERN-2003-006)
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Use of an FPGA to identify electromagnetic clusters and isolated hadrons in the ATLAS level-1 calorimeter trigger
/ Garvey, J (Birmingham U.) ; Achenbach, R (Kirchhoff Inst. Phys.) ; Apostologlou, A (Rutherford) ; Barnett, B M (Rutherford) ; Bauss, B (Mainz U., Inst. Phys.) ; Brawn, I P (Rutherford) ; Bohm, C (Stockholm U.) ; Dahlhoff, A (Mainz U., Inst. Phys.) ; Davis, A O (Rutherford) ; Edwards, J (Rutherford) et al.
At the full LHC design luminosity of 10^34 cm^-2 s^-1 there will be approximately 10^9 proton-proton interactions per second. [...]
ATL-DAQ-2004-008.
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2003.
Access to fulltext - Access to fulltext
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Technical Design Report for the Phase-I Upgrade of the ATLAS TDAQ System
/ ATLAS Collaboration
The Phase-I upgrade of the ATLAS Trigger and Data Acquisition (TDAQ) system is to allow the ATLAS experiment to efficiently trigger and record data at instantaneous luminosities that are up to three times that of the original LHC design while maintaining trigger thresholds close to those used in the initial run of the LHC..
CERN-LHCC-2013-018 ; ATLAS-TDR-023.
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2013.
(Technical design report. ATLAS ; 23)
Fulltext
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