0000000000594711

AUTHOR

M. Melchiorri

showing 2 related works from this author

A cylindrical GEM detector with analog readout for the BESIII experiment

2016

Abstract A cylindrical GEM detector with analog readout is under development for the upgrade of the Inner Tracker of the BESIII experiment at IHEP (Beijing). The new detector will match the requirements for momentum resolution ( σ pt / p t ~ 0.5 % at 1 GeV) and radial resolution ( σ xy ~ 120 μ m ) of the existing drift chamber and will improve significantly the spatial resolution along the beam direction ( σ z ~ 150 μ m ) with very small material budget (less than 1.5% of X 0 ). With respect to the state of the art the following innovations will be deployed: a lighter mechanical structure based on Rohacell, a new XV anode readout plane with jagged strip layout to reduce the parasitic capaci…

PhysicsNuclear and High Energy PhysicsGEMBESIII experiment; GEM; Micro-pattern gas detectors; Tracking detectorsPhysics::Instrumentation and Detectors010308 nuclear & particles physicsInstrumentationDetectorResolution (electron density)BESIII experimentMicro-pattern gas detectors01 natural sciencesMagnetic fieldAnodeNuclear physicsMomentumTracking detectorsParasitic capacitance0103 physical sciencesBESIII experiment; GEM; Micro-pattern gas detectors; Tracking detectors; Nuclear and High Energy Physics; Instrumentation010306 general physicsInstrumentationImage resolutionNuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
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Time performance of a triple-GEM detector at high rate

2020

Gaseous detectors are used in high energy physics as trackers or, more generally, as devices for the measurement of the particle position. For this reason, they must provide high spatial resolution and they have to be able to operate in regions of intense radiation, i.e. around the interaction point of collider machines. Among these, Micro Pattern Gaseous Detectors (MPGD) are the latest frontier and allow to overcome many limitations of the pre-existing detectors, such as the radiation tolerance and the rate capability. The gas Electron Multiplier (GEM) is a MPGD that exploits an intense electric field in a reduced amplification region in order to prevent discharges. Several amplification s…

Physics - Instrumentation and DetectorsPhysics::Instrumentation and DetectorsCyclotronFOS: Physical sciences01 natural sciencesParticle detector030218 nuclear medicine & medical imaginglaw.inventionNO03 medical and health sciences0302 clinical medicineOpticslaw0103 physical sciencesColliderInstrumentationMicrotronMathematical PhysicsPhysicsInteraction point010308 nuclear & particles physicsbusiness.industryDetectorInstrumentation and Detectors (physics.ins-det)Measuring instrumentGas electron multiplierbusiness
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