The Electron/Photon And Tau/Hadron Cluster Processor For The Atlas First-Level Trigger - A Flexible Test System

V J O Perera, I P Brawn, J E G Edwards,C N P Gee, A R Gillman, R Hatley,Anwar Shah, T P Shah, P Brightthomas, J Garvey, K Jayananda, R J Staley, W N Stokes, S D Talbot, P M Watkins,A Ted Watson, E Eisenhandler, W R Gibson,M P J Landon, C Geweniger, P Hanke, E E Kluge,Jean Michel Krause, K Mahboubi, K Meier, Ulrich Pfeiffer, Alexander Putzer, K T Schmitt, Corey Schumacher, B Bauss, Katie Georgi, Kai Jakobs, G Quast, U Schafer,J P Thomas,Christian Bohm,Maria Engstrom,S Hellman,Samuel Silverstein

PROCEEDINGS OF THE FIFTH WORKSHOP ON ELECTRONICS FOR LHC EXPERIMENTS（1999）

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摘要

The electron/photon and tau/hadron first-level trigger system for ATLAS will receive digitised data from approximately 6400 calorimeter trigger towers, covering a pseudo-rapidity region of +/-2.5. The system will provide electron/photon and tau/hadron trigger multiplicity information to the Central Trigger Processor, and Region of Interest information for the second-level trigger. The system will also provide intermediate results to the DAQ system for monitoring and diagnostic purposes. The system consists of four different BU-module designs and two different chip (ASIC/FPGA) designs. This paper will outline a flexible test system for evaluating various elements of the system, including data links, ASICs/FPGAs and individual modules.

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