The upgrade of the PreProcessor system of the ATLAS level-1 calorimeter trigger

• Verfasst von: Andrei, George Victor [VerfasserIn]
• Verfasst von: Hanke, Paul [VerfasserIn]
• Verfasst von: Jongmanns, Jan [VerfasserIn]
• Verfasst von: Khomich, Andrei [VerfasserIn]
• Verfasst von: Meier, Karlheinz [VerfasserIn]
• Verfasst von: Schmitt, Klaus [VerfasserIn]
• Verfasst von: Schultz-Coulon, Hans-Christian [VerfasserIn]
• Verfasst von: Stamen, Rainer [VerfasserIn]
• Verfasst von: Stock, Peter [VerfasserIn]
• Verfasst von: Wessels, Martin [VerfasserIn]
• Titel: The upgrade of the PreProcessor system of the ATLAS level-1 calorimeter trigger
• Verf.angabe: V. Andrei, P. Hanke, J. Jongmanns, A. Khomich, K. Meier, K. Schmitt, H.-C. Schultz-Coulon, R. Stamen, P. Stock and M. Wessels
• Fussnoten: Gesehen am 06.06.2018
• Titel Quelle: Enthalten in: Journal of Instrumentation
• Jahr Quelle: 2012
• Band/Heft Quelle: 7(2012,12) Artikel-Nummer C12026, 10 Seiten
• ISSN Quelle: 1748-0221
• DOI: doi:10.1088/1748-0221/7/12/C12026
• Datenträger: Online-Ressource
• Sprache: eng
• K10plus-PPN: 1576029301

Abstract

The ATLAS Level-1 Calorimeter Trigger is a pipelined system to identify high- p T objects and to build energy sums within a fixed latency of 2 μs. It consists of a PreProcessor, which conditions and digitises analogue calorimeter signals, and two object-finding processors. The PreProcessor's tasks are implemented on a Multi-Chip Module, holding ADCs, time-adjustment and digital processing ASICs, and LVDS serialisers. A pin-compatible substitute, based on today's technology, like dual-channel ADCs and FPGAs, has been built to improve the BCID and pedestal subtraction algorithms. Test results with the first prototype are presented.