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The ATLAS High Level Trigger Region of Interest Builder
2008
Journal of Instrumentation
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This article describes the design, testing and production of the ATLAS Region of Interest Builder (RoIB). This device acts as an interface between the Level 1 trigger and the high level trigger (HLT) farm for the ATLAS LHC detector. It distributes all of the level 1 data for a subset of events to a small number of (16 or less) individual commodity processors. These processors in turn provide this information to the HLT. This allows the HLT to use the level 1 information to narrow data requests
doi:10.1088/1748-0221/3/04/p04001
fatcat:wgpicsvunzcnld73lnq3vvlzwq