CERN Accelerating science

ATLAS Note
Report number	ATL-LARG-PROC-2012-008
Title	Development and Implementation of Optimal Filtering in a Virtex FPGA for the Upgrade of the ATLAS LAr Calorimeter Readout
Author(s)	Stärz, S (Dresden, Tech. U.)
Corporate Author(s)	The ATLAS collaboration
Publication	2012
Imprint	01 Nov 2012
Number of pages	mult.
In:	Topical Workshop on Electronics for Particle Physics, Oxford, UK, 17 - 21 Sep 2012
Subject category	Detectors and Experimental Techniques
Accelerator/Facility, Experiment	CERN LHC ; ATLAS
Free keywords	Calorimeters ; Digital signal processing ; Online farms and online filtering
Abstract	In the context of upgraded read-out systems for the Liquid-Argon Calorimeters of the ATLAS detector, modified front-end, back-end and trigger electronics are foreseen for operation in the high-luminosity phase of the LHC. Accuracy and efficiency of the energy measurement and reliability of pile-up suppression are substantial when processing the detector raw-data in real-time. Several digital filter algorithms are investigated for their performance to extract energies from incoming detector signals and for the needs of the future trigger system. The implementation of fast, resource economizing, parameter driven filter algorithms in a modern Virtex FPGA is presented.
Copyright/License	Preprint: (License: CC-BY-4.0)