The ATLAS Level-1 Calorimeter Trigger: PreProcessor implementation and performance

Autor: B. Åsman, W. Ji, Robert Hickling, B. Bauss, P. M. Watkins, V. Andrei, Reiner Hauser, P. True, P. Hanke, Murrough Landon, Carsten Meyer, William Buttinger, S. Caughron, M. Keller, T. Müller, A. Hidvegi, J. I. Hofmann, Markus Dorn, D. P. F. Prieur, Dave Charlton, Stefan Tapprogge, Miriam Watson, T. Moa, M. Johansen, Valerie Susanne Lang, Giacomo Snidero, P. D. Thompson, U. Schafer, K. Mahboubi, R. P. Middleton, J. T. Linnemann, G. Anders, Y. Davygora, R.J. Staley, P.J.W. Faulkner, J N Lilley, Sebastian Moritz, Raymond Brock, D. R. Hadley, Sarah Williams, S. T. French, A Mass, A. Khomich, Y. Ermoline, Michael R. Wessels, S. Poddar, S. Hellman, K. Schmitt, Sarah Heim, Paul Newman, C. N. P. Gee, Woiciech Fedorko, J. Fleckner, J. T. Childers, Ivana Hristova, Christian Ohm, A. Nikiforov, E.-E. Kluge, F. Lepold, S. Eckweiler, E. Eisenhandler, Hans-Christian Schultz-Coulon, A. R. Gillman, Volker Büscher, Eram Rizvi, Andrew Christopher Daniells, Rohin Narayan, J. Edwards, Benedict Allbrooke, V.J.O. Perera, C Schumacher, D. Edmunds, H. Laier, Tobias Alexander Hülsing, Stephen Hillier, Rainer Stamen, Patrick Rieck, C. Schroder, Tim Martin, A. Neusiedl, K. Ellis, P. Stock, Eduard Simioni, Christian Bohm, Dave Sankey, R. Achenbach, Reinhard Schwienhorst, F. Müller, Bruce Barnett, M. zur Nedden, Alan Watson, S. B. Silverstein, W. Qian, C. J. Curtis, John Morris, Juergen Thomas, H. S. Bansil, M. C. Stockton, P. Weber, Richard Mudd, C L A Tan, Lucio Cerrito, Juraj Bracinik, Katarina Bendtz, F. Föhlisch, Ullrich R. Pfeiffer, M. A. Thomson, P. Laurens, C. Goeringer, A.O. Davis, I.P. Brawn, V. Scharf, K. Meier, R. Caputo, Craig Wiglesworth, Pawel Plucinski, J. Koll
Rok vydání: 2012
Předmět:
Popis: 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). The received calorimeter signals represent deposits of transverse energy. The system consists of 124 individual PreProcessor modules that digitise the input signals for each LHC collision, and provide energy and timing information to the digital processors of the L1Calo system, which identify physics objects forming much of the basis for the full ATLAS first level trigger decision. This paper describes the architecture of the PreProcessor, its hardware realisation, functionality, and performance.
Databáze: OpenAIRE