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A high-granularity scintillator calorimeter readout with silicon photomultipliers |
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| Affiliation: | aLebedev Physics Institute, Moscow, Russia bInstitute of Theoretical and Experimental Physics, Moscow, Russia cMoscow Engineering and Physics Institute, Moscow, Russia dInstitute of Physics, Academy of Sciences, Prague, Czech Republic eFLC, DESY, Notkestr. 85, Hamburg 22607, Germany fState Unitary Enterprise Science & Production Enterprise (PULSAR), Russia gUniversity of Hamburg, Germany hFaculty of Mathematics and Physics, Charles University, Prague, Czech Republic |
| Abstract: | We report on the design, construction and performance of a prototype for a high-granularity tile hadronic calorimeter for a future international linear collider detector. Scintillating tiles are read out via wavelength-shifting fibers that guide the scintillation light to a novel photodetector, the silicon photomultiplier. A prototype has been tested using a positron test beam at DESY. The results are compared with a reference prototype calorimeter equipped with multichannel vacuum photomultipliers. Detector calibration, noise, linearity and stability are discussed, and the energy response in a 1–6 GeV positron beam is compared with simulations. The present results demonstrate that the silicon photomultiplier is well-suited as photodetectors in calorimeters and thus has been selected for the construction of a |
| Keywords: | Linear collider detector Analog calorimeter Semiconductor detectors Scintillator High granularity |
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