Commissioning of the Jet/Energy-sum and Cluster Processors for the ATLAS Level-1 Calorimeter Trigger System

The ATLAS first-level calorimeter trigger is a hardwarebased system designed to identify high-pT jets, electron/photon and tau candidates, and to measure total and missing ET. The trigger consists of a Preprocessor system which digitises 7200 analogue inputs, and two digital multicrate processor sys...

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Detalles Bibliográficos
Autores principales: Achenbach, R, Adragna, P, Andrei, V, Åsman, B, Barnett, B M, Bauss, B, Bendel, M, Bohm, C, Booth, J R A, Brawn, I P, Charlton, D G, Collins, N J, Curtis, C J, Davis, A O, Eckweiler, S, Eisenhandler, E F, Faulkner, P J W, Fleckner, J, Föhlisch, F, Gee, C N P, Geweniger, C, Gillman, A R, Hanke, P, Hellman, S, Hidvegi, A, Hillier, S J, Johansen, M, Kluge, E-E, Landon, M, Lendermann, V, Lilley, J N, Mahboubi, K, Mahout, G, Meier, K, Moa, T, Neusiedl, A, Perera, V J O, Prieur, D P F, Qian, W, Rieke, S, Rühr, F, Sankey, D P C, Schäfer, U, Schmitt, K, Schultz-Coulon, H C, Silverstein, S, Staley, R J, Stamen, R, Stockton, M C, Tapprogge, S, Thomas, J P, Trefzger, T, Watkins, P M, Watson, A, Weber, P, Woehrling, E-E
Lenguaje:eng
Publicado: CERN 2007
Materias:
Detectors and Experimental Techniques
Acceso en línea:https://dx.doi.org/10.5170/CERN-2007-007.227
http://cds.cern.ch/record/1068289
Descripción
Sumario:The ATLAS first-level calorimeter trigger is a hardwarebased system designed to identify high-pT jets, electron/photon and tau candidates, and to measure total and missing ET. The trigger consists of a Preprocessor system which digitises 7200 analogue inputs, and two digital multicrate processor systems which find jets, measure energy sums, and identify localised energy deposits (electron/photon and tau candidates). In order to provide a trigger quickly enough, the hardware is parallel and pipelined. Experience so far of the Jet/Energy-sum and Cluster Processor system production, commissioning, and integration into ATLAS will be described.

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