Search results for "Collision rate"

showing 3 items of 3 documents

Hardware and firmware developments for the upgrade of the ATLAS Level-1 Central Trigger Processor

2014

The Central Trigger Processor (CTP) is the final stage of the ATLAS first level trigger system which reduces the collision rate of 40 MHz to a Level-1 event rate of 100 kHz. An upgrade of the CTP is currently underway to significantly increase the number of trigger inputs and trigger combinations, allowing additional flexibility for the trigger menu. We present the hardware and FPGA firmware of the newly designed core module (CTPCORE+) module of the CTP, as well as results from a system used for early firmware and software prototyping based on commercial FPGA evaluation boards. First test result from the CTPCORE+ module will also be shown.

Event (computing)business.industryComputer scienceFirmwareSoftware prototypingcomputer.software_genreUpgrademedicine.anatomical_structureTrigger concepts and systems (hardware and software)Atlas (anatomy)medicineLevel triggerDetectors and Experimental TechniquesField-programmable gate arraybusinessInstrumentationcomputerDigital electronic circuitsMathematical PhysicsComputer hardwareCollision rateJournal of Instrumentation
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Upgrade of ALICE forward detectors

2019

ALICE will upgrade its subsystems in 2019−2020 to fully benefit from the increased collision rate and luminosity of the LHC at CERN. Two new forward detectors will be installed at the core of ALICE: the Fast Interaction Trigger (FIT) and the Muon Forward Tracker (MFT). Additionally, during the shutdown between Run 3 and Run 4, there will be an opportunity to install the Forward Calorimeter (FoCal). This paper describes these new forward detectors, their physics justification and goals, selected design features along with performance of detector prototypes and simulated performance figures. peerReviewed

Large Hadron ColliderLuminosity (scattering theory)Calorimeter (particle physics)Physics::Instrumentation and DetectorsComputer sciencebusiness.industrydesign features simulated performancetutkimuslaitteetDetectorElectrical engineeringhiukkasfysiikkaUpgradePhysics::Accelerator PhysicsHigh Energy Physics::Experimentcollision rateDetectors and Experimental TechniquesALICE (propellant)businessCollision rateProceedings of The 39th International Conference on High Energy Physics — PoS(ICHEP2018)
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New Fast Interaction Trigger for ALICE

2017

The LHC heavy-ion luminosity and collision rate from 2021 onwards will considerably exceed the design parameters of the present ALICE forward trigger detectors and the introduction of the Muon Forward Tracker (MFT) will significantly reduce the space available for the new trigger detectors. To comply with these conditions a new Fast Interaction Trigger (FIT) will be built. FIT will be the main forward trigger, luminometer, and interaction-time detector. It will also determine multiplicity, centrality, and reaction plane of heavy-ion collisions. FIT will consist of two arrays of Cherenkov quartz radiators with MCP-PMT sensors and of a plastic scintillator ring. By increasing the overall acce…

Nuclear and High Energy PhysicsPhysics::Instrumentation and DetectorsFast Interaction TriggerScintillatorALICE upgrade01 natural sciencesPLANACON XP85012Nuclear physics0103 physical sciencesRedundancy (engineering)MCP-PMT010306 general physicsInstrumentationCherenkov radiationCollision ratePhysicsLarge Hadron ColliderMuonta114010308 nuclear & particles physicsbusiness.industryDetectorElectrical engineeringbusinessCentralityHL-LHCdetector R&DNuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
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