The ATLAS Level-1 Calorimeter Trigger

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Published 6 March 2008 Published under licence by IOP Publishing Ltd
, , Citation R Achenbach et al 2008 JINST 3 P03001 DOI 10.1088/1748-0221/3/03/P03001

1748-0221/3/03/P03001

Abstract

The ATLAS Level-1 Calorimeter Trigger uses reduced-granularity information from all the ATLAS calorimeters to search for high transverse-energy electrons, photons, τ leptons and jets, as well as high missing and total transverse energy. The calorimeter trigger electronics has a fixed latency of about 1 μs, using programmable custom-built digital electronics. This paper describes the Calorimeter Trigger hardware, as installed in the ATLAS electronics cavern.

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