CERN Accelerating science

ATLAS Note
Report number	ATL-DAQ-95-031 ; RD-27 Note 35 ; ATL-D-PN-31
Title	A demonstrator programme for the ATLAS level-1 calorimeter trigger
Author(s)	Brawn, I P (Birmingham U.) ; Carney, R E (Birmingham U.) ; Garvey, J (Birmingham U.) ; Rees, D (Birmingham U.) ; Staley, R J (Birmingham U.) ; Watkins, P M (Birmingham U.) ; Watson, AT (Birmingham U.) ; Ellis, Nick (CERN) ; Geweniger, C (Heidelberg U.) ; Hanke, P (Heidelberg U.) ; Kluge, E E (Heidelberg U.) ; Putzer, A (Heidelberg U.) ; Rensch, B (Heidelberg U.) ; Tittel, K (Heidelberg U.) ; Wunsch, M (Heidelberg U.) ; Eisenhandler, E F (Queen Mary, U. of London) ; Landon, M (Queen Mary, U. of London) ; Pentney, JM (Queen Mary, U. of London) ; Thompson, G (Queen Mary, U. of London) ; Edwards, J (Rutherford) ; Gee, CNP (Rutherford) ; Gillman, A R (Rutherford) ; Hatley, R (Rutherford) ; Leake, J (Rutherford) ; Perera, V J O (Rutherford) ; Shah, TP (Rutherford)
Collaboration	RD27
Publication	1995-01-17
Imprint	17 Jan 1995
Number of pages	11
Subject category	Detectors and Experimental Techniques
Accelerator/Facility, Experiment	CERN LHC ; ATLAS RD27
Abstract	This document describes work to demonstrate the feasibility of the level-1 trigger design presented in the ATLAS Technical Proposal. In the phase-I programme already completed, a prototype custom integrated circuit to carry out the e.m. cluster-finding algorithm was produced and tested, and work was done on bunchcrossing identification. In 1995 further studies will be made of bunch-crossing identification, using a new module in conjunction with the phase-I trigger. The phase-II system, scheduled for 1996, will concentrate on the issues of high-speed optical and electrical data transmission, and signal fanout on transmission-line backplanes.
Copyright/License	Preprint: (License: CC-BY-4.0)

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