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RESEARCH PRODUCT
New Fast Interaction Trigger for ALICE
Wladyslaw Henryk Trzaskasubject
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&Ddescription
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 acceptance of FIT, the scintillator will improve centrality and event plane resolution. It will also add sensitivity for the detection of beam-gas events and provide some degree of redundancy. FIT is currently undergoing an intense R&D and prototyping period. It is scheduled for installation in ALICE during 2020. peerReviewed
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2017-02-01 | Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment |