The CALICE (Calorimeter for Linear Collider Experiment) collaboration [1] is an R&D group of more than 280 physicists and engineers from around the world, working together to develop new, high performance detectors for high energy positron-electron experiments at future International Linear Collider (ILC). It is a part of the European EUDET project. High granularity is achieved by 38 scintillator tile layers . Each layer is a 2-cm thick steel plate 90 × 90 cm2 followed by a 0.5-cm scintillator plate that consists of more than 200 scintillator tiles.
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| - The CALICE (Calorimeter for Linear Collider Experiment) collaboration [1] is an R&D group of more than 280 physicists and engineers from around the world, working together to develop new, high performance detectors for high energy positron-electron experiments at future International Linear Collider (ILC). It is a part of the European EUDET project. High granularity is achieved by 38 scintillator tile layers . Each layer is a 2-cm thick steel plate 90 × 90 cm2 followed by a 0.5-cm scintillator plate that consists of more than 200 scintillator tiles. (en)
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| - The CALICE (Calorimeter for Linear Collider Experiment) collaboration [1] is an R&D group of more than 280 physicists and engineers from around the world, working together to develop new, high performance detectors for high energy positron-electron experiments at future International Linear Collider (ILC). It is a part of the European EUDET project. The physics requirements of a future TeV-scale machine, such as the ILC, demand extremely high performance calorimetry. This is best achieved using a finely segmented system that allows to reconstruct events using the so-called "particle flow approach" (PFA). The calorimeter systems for high energy physics experiments usually consist of three main subsystems: electromagnetic calorimeter (ECAL) to detect electromagnetic showers produced by electrons (or positrons) and photons, hadronic calorimeter (HCAL) to measure hadron-induced showers, and muon tracker (or so-called tail catcher) to identify highly penetrating particles such as muons. CALICE has developed prototypes of the three main calorimetric subsystems of a future detector: an ECAL followed by an HCAL and a tail catcher/muon tracker (TCMT), and is evaluating the performance of alternative technological solutions within this combined system. The collaboration studies the performance of such calorimeters within a long, detailed program for an ECAL and several options of high granular analogue and digital calorimeters with sensitive layers of gas or plastic scintillator. The Tile subgroup [2] has built a one cubic-meter steel/scintillator sandwich sampling hadronic calorimeter called physics prototype for study series in various test particle beams. High granularity is achieved by 38 scintillator tile layers . Each layer is a 2-cm thick steel plate 90 × 90 cm2 followed by a 0.5-cm scintillator plate that consists of more than 200 scintillator tiles. The mosaic of the HCAL layers exhibits a hundred 3 × 3 cm2 tiles in the center, surrounded by a large area covered with 6 × 6 cm2 tiles and finally enclosed by a strip of 12 × 12 cm2 tiles. These nearly 8000 tiles in total are read out individually by wavelength-shifting fibers which illuminate small silicon photomultipliers mounted on each tile and insensitive to large magnetic fields. (en)
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