6533b7cffe1ef96bd1257cae
RESEARCH PRODUCT
The ATLAS Level-1 Calorimeter Trigger: PreProcessor implementation and performance
B. ÅSmanW. JiRobert HicklingB. BaussP. M. WatkinsV. AndreiReiner HauserP. TrueP. HankeMurrough LandonCarsten MeyerWilliam ButtingerS. CaughronM. KellerT. MüllerA. HidvegiJ. I. HofmannMarkus DornD. P. F. PrieurDave CharltonStefan TapproggeMiriam WatsonT. MoaM. JohansenValerie Susanne LangGiacomo SnideroP. D. ThompsonU. SchaferK. MahboubiR. P. MiddletonJ. T. LinnemannG. AndersY. DavygoraR.j. StaleyP.j.w. FaulknerJ N LilleySebastian MoritzRaymond BrockD. R. HadleySarah WilliamsS. T. FrenchA MassA. KhomichY. ErmolineMichael R. WesselsS. PoddarS. HellmanK. SchmittSarah HeimPaul NewmanC. N. P. GeeWoiciech FedorkoJ. FlecknerJ. T. ChildersIvana HristovaChristian OhmA. NikiforovE.-e. KlugeF. LepoldS. EckweilerE. EisenhandlerHans-christian Schultz-coulonA. R. GillmanVolker BüscherEram RizviAndrew Christopher DaniellsRohin NarayanJ. EdwardsBenedict AllbrookeV.j.o. PereraC SchumacherD. EdmundsH. LaierTobias Alexander HülsingStephen HillierRainer StamenPatrick RieckC. SchroderTim MartinA. NeusiedlK. EllisP. StockEduard SimioniChristian BohmDave SankeyR. AchenbachReinhard SchwienhorstF. MüllerBruce BarnettM. Zur NeddenAlan WatsonS. B. SilversteinW. QianC. J. CurtisJohn MorrisJuergen ThomasH. S. BansilM. C. StocktonP. WeberRichard MuddC L A TanLucio CerritoJuraj BracinikKatarina BendtzF. FöhlischUllrich R. PfeifferM. A. ThomsonP. LaurensC. GoeringerA.o. DavisI.p. BrawnV. ScharfK. MeierR. CaputoCraig WiglesworthPawel PlucinskiJ. Kollsubject
Large Hadron ColliderCalorimeter (particle physics)010308 nuclear & particles physicsComputer sciencebusiness.industryPhysics::Instrumentation and DetectorsDetectorElectrical engineering01 natural scienceslaw.inventionMicroprocessormedicine.anatomical_structureAtlas (anatomy)lawPseudorapidity0103 physical sciencesmedicinePreprocessorDetectors and Experimental Techniques010306 general physicsbusinessInstrumentationMathematical PhysicsEnergy (signal processing)Computer hardwaredescription
The PreProcessor system of the ATLAS Level-1 Calorimeter Trigger (L1Calo) receives about 7200 analogue signals from the electromagnetic and hadronic components of the calorimetric detector system. Lateral division results in cells which are pre-summed to so-called Trigger Towers of size 0.1 × 0.1 along azimuth (phi) and pseudorapidity (η). The received calorimeter signals represent deposits of transverse energy. The system consists of 124 individual PreProcessor modules that digitise the input signals for each LHC collision, and provide energy and timing information to the digital processors of the L1Calo system, which identify physics objects forming much of the basis for the full ATLAS first level trigger decision. This paper describes the architecture of the PreProcessor, its hardware realisation, functionality, and performance.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2012-12-12 |