학술논문
Acceleration of electromagnetic shower development and enhancement of light yield in oriented scintillating crystals
Document Type
Working Paper
Author
Soldani, Mattia; Monti-Guarnieri, Pietro; Selmi, Alessia; Argiolas, Nicola; Bomben, Luca; Brizzolari, Claudia; Canale, Nicola; Carsi, Stefano; Charitonidis, Nikolaos; De Salvador, Davide; Guidi, Vincenzo; Haurylavets, Viktar; Korzhik, Mikhail; Lezzani, Giulia; Lobko, Alexander; Malagutti, Lorenzo; Mangiacavalli, Sofia; Mascagna, Valerio; Mazzolari, Andrea; Mechinsky, Vitaly; Moulson, Matthew; Negrello, Riccardo; Paternò, Gianfranco; Perna, Leonardo; Petroselli, Christian; Prest, Michela; Romagnoni, Marco; Ronchetti, Federico; Saibene, Giosué; Sgarbossa, Francesco; Sytov, Alexei; Tikhomirov, Viktor; Vallazza, Erik; Bandiera, Laura
Source
Subject
Language
Abstract
We observed a substantial increase of the scintillation light output of lead tungstate (PbWO$_4$) at a small incidence angle with respect to two main lattice axes. This reflects the acceleration of electromagnetic shower development that occurs in the crystalline Strong Field. We measured the scintillation light generated by $120$-$\mathrm{GeV}$ electrons and $10$-$100$-$\mathrm{GeV}$ $\gamma$ rays on thick samples. This result deepens the knowledge of the shower development mechanisms in crystal scintillators and could pave the way to the development of innovative accelerator- and space-borne calorimeters.