Search results for "MCP-PMT"

showing 2 items of 2 documents

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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Performance of the cost-effective Planacon ® MCP-PMTs in strong magnetic fields

2020

We present the behavior of the cost-effective Planacon MCP-PMTs with pore diameter in the presence of axial magnetic fields up to 0.5 T. Having a batch of 62 devices of the same type, two MCP-PMTs were selected and their gain variation measured in different magnetic fields. These two otherwise identical devices satisfied the selection criteria by requiring the lowest (1.15 kV) and one of the highest (1.4 kV) bias voltage values to achieve a given gain. Both MCP-PMTs have a nearly identical tolerance of the strong magnetic field despite the significant difference in the bias voltage. This clarifies the mechanism of the B-field influence on the MCP-PMT gain, emphasizing the importance of the …

ilmaisimetPIDtutkimuslaitteetMCP-PMTmagnetic fieldhiukkasfysiikkamagneettikentätmicrochannel platefast interaction trigger
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