Heidelberg 2007 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 314: Trigger und DAQ I

T 314.6: Vortrag

Mittwoch, 7. März 2007, 18:10–18:25, INF 327 SR 6

Monitoring the Pre-Processor System of the ATLAS Level-1 Calorimeter Trigger — •Victor Andrei — Kirchhoff Institut für Physik, Universität Heidelberg

The Pre-Proccessor (PPr) System of the ATLAS Level-1 Calorimeter Trigger is a highly parallel system, with hard-wired algorithms implemented in ASICs, to receive, digitise and process over 7000 analogue trigger tower signals from the entire ATLAS Calorimetry, and to transmit the determined transverse energy deposits to the object-finding processors of the calorimeter trigger: Cluster Processor and JetEnergy-sum Processor. The PPr System consists of 8 crates, each of which being equipped with 16 PreProcessor Modules, that can each receive and process 64 analogue input signals.
The PreProcessor System provides facilities to monitor the operation and performance of both its individual components and the Level-1 Calorimeter Trigger: pipelined readout of event based monitoring data to the DAQ System, in order to document the Level-1 Trigger decision, diagnostic features implemented in PPrASIC to establish rate maps and energy spectra per trigger tower, and output interface to the crate controller CPU.
Monitoring software for trigger-specific applications is developed and presented in this talk.