The AMS-02 lead-scintillating fibres Electromagnetic Calorimeter

• DOI: 10.1016/j.nima.2013.02.020
• Publication Date: 2013-03-14T01:52:05Z
• Authors: C. Adloff; L. Basara; G. Bigongiari; F. Bosi; P. Brun; F. Cadoux; F. Cervelli; V. Chambert; G. Chen; G.M. Chen; H.S. Chen; G. Coignet; G. Cougoulat; S. Di Falco; J.M. Dubois; S. Elles; E. Falchini; A. Fiasson; D. Fougeron; N. Fouque; S. Galeotti; G. Gallucci; F. Gherarducci; L. Girard; F. Giuseppe; C. Goy; R. Hermel; M. Incagli; J. Jacquemier; L. Journet; R. Kossakowski; V. Lepareur; Z.H. Li; B. Lieunard; T. Lomtadze; Y.S. Lu; P. Maestro; C. Magazzù; M. Maire; A. Orsini; M. Paniccia; E. Pedreschi; F. Peltier; M. Piendibene; F. Pilo; J. Pochon; T. Rambure; S. Rosier-Lees; F. Spinella; X.W. Tang; J. Tassan-Viol; A. Tazzioli; C. Vannini; J.P. Vialle; H.L. Zhuang
• Keywords: Calorimeter (particle physics); Lead (geology)

The Electromagnetic Calorimeter (ECAL) of the AMS-02 experiment is a fine grained lead-scintillating fibres sampling calorimeter that allows for a precise three-dimensional imaging of the longitudinal and lateral shower development. It provides a high (>= 10(6)) electron/hadron discrimination with the other AMS-02 detectors [1] and good energy resolution. The calorimeter also provides a standalone photon trigger capability to AMS-02. The mechanical assembly was realized to ensure minimum weight, still supporting the intrinsically heavy calorimeter during launch. ECAL light collection system and electronics are designed to measure electromagnetic particles over a wide energy range, from GeV up to TeV. A full-scale flight-like model was tested using electrons and proton beams with energies ranging from 6 to 250 GeV. (c) 2013 Elsevier B.V. All rights reserved.