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Polysiloxane-based scintillators for shashlik calorimeters

Acerbi, F.; Branca, A.; Brizzolari, C.; Brunetti, G.; Carturan, S.; Catanesi, M.G.; Cecchini, S.; Cindolo, F.; Collazuol, G.; Dal Corso, F.; De Rosa, G.; Delogu, C.; Falcone, A.; Gola, A.; Jollet, C.; Kliček, Budimir; Kudenko, Y.; Laveder, M.; Longhin, A.; Ludovici, L.; Lutsenko, E.; Magaletti, L.; Mandrioli, G.; Marchi, T.; Margotti, A.; Mascagna, V.; Meregaglia, A.; Mezzetto, M.; Nessi, M.; Pari, M.; Parozzi, E.; Pasqualini, L.; Paternoster, G.; Patrizii, L.; Piemonte, C.; Pozzato, M.; Prest, M.; Pupilli, F.; Radicioni, E.; Riccio, C.; Ruggeri, A.C.; Scian, C.; Sirri, G.; Stipčević, Mario; Tenti, M.; Terranova, F.; Torti, M.; Vallazza, E.; Vesco, M. (2020) Polysiloxane-based scintillators for shashlik calorimeters. Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment, 956 . ISSN 0168-9002

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We present the first application of polysiloxane- based scintillators as active medium in a shashlik sampling calorimeter. These results were obtained from a testbeam campaign of a cm (13 depth) prototype. A Wavelength Shifting fiber array of 36 elements runs perpendicularly to the stack of iron (15 mm) and polysiloxane scintillator (15 mm) tiles with a density of about one over cm. Unlike shashlik calorimeters based on plastic organic scintillators, here fibers are optically matched with the scintillator without any intermediate air gap. The prototype features a compact light readout based on Silicon Photo-Multipliers embedded in the bulk of the detector. The detector was tested with electrons, pions and muons with energies ranging from 1 to 7 GeV at the CERN-PS. This solution offers a highly radiation hard detector to instrument the decay region of a neutrino beam, providing an event-by-event measurement of high-angle decay products associated with neutrino production (ENUBET, Enhanced NeUtrino BEams from kaon Tagging, ERC project). The results in terms of light yield, uniformity and energy resolution, are compared to a similar calorimeter built with ordinary plastic scintillators.

Item Type: Article
Uncontrolled Keywords: Polysiloxane ; Scintillator ; Shashlik calorimeter ; Silicon photoMultipliers
Subjects: NATURAL SCIENCES > Physics
Divisions: Division of Experimental Physics
Depositing User: Budimir Kliček
Date Deposited: 01 Feb 2022 09:00
DOI: 10.1016/j.nima.2019.163379

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