High energy γ-ray detection with the AMS-02 electromagnetic calorimeter

Autor: Fabrizio Giulio Luca Pilo, G. Bigongiari, F. Cervelli, M. Incagli, J. P. Vialle, G. Coignet, S. Vitillo, I. Guerri, S. Di Falco, Corinne Goy, Luca Morescalchi, S. Rosier-Lees
Přispěvatelé: Laboratoire d'Annecy de Physique des Particules (LAPP), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS)
Jazyk: angličtina
Rok vydání: 2017
Předmět:
Zdroj: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Elsevier, 2017, 850, pp.78-82. ⟨10.1016/j.nima.2017.01.018⟩
ISSN: 0168-9002
DOI: 10.1016/j.nima.2017.01.018⟩
Popis: The electromagnetic Calorimeter (ECAL) of the AMS-02 experiment is a fine grained lead-scintillating fibers sampling calorimeter that allows for a precise 3-dimensional imaging of the longitudinal and lateral developement of electromagnetic showers. With a total thickness of 17 X 0 , electromagnetic showers are well contained and the energy resolution is 2% up to 1 TeV. ECAL provides a high discrimination between electromagnetic and hadronic showers; furthermore, together with the rest of the AMS-02 detector, it is able to identify the subdominant ( ≃ 10 − 6 ) photon flux from GeV up to TeV energies. Thanks to its high granularity ECAL has an excellent pointing capability ( 0 . 5 o at high energies) that offers an unusual possibility of drawing sky maps with the calorimeter standalone.
Databáze: OpenAIRE