1. Space applications of GAGG:Ce scintillators: a study of afterglow emission by proton irradiation
- Author
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Giuseppe Dilillo, Nicola Zampa, Riccardo Campana, Fabio Fuschino, Giovanni Pauletta, Irina Rashevskaya, Filippo Ambrosino, Marco Baruzzo, Diego Cauz, Daniela Cirrincione, Marco Citossi, Giovanni Della Casa, Benedetto Di Ruzza, Yuri Evangelista, Gábor Galgóczi, Claudio Labanti, Jakub Ripa, Francesco Tommasino, Enrico Verroi, Fabrizio Fiore, Andrea Vacchi, and ITA
- Subjects
Nuclear and High Energy Physics ,Physics - Instrumentation and Detectors ,FOS: Physical sciences ,Astrophysics::Earth and Planetary Astrophysics ,Instrumentation and Detectors (physics.ins-det) ,Astrophysics - Instrumentation and Methods for Astrophysics ,Instrumentation and Methods for Astrophysics (astro-ph.IM) ,Instrumentation - Abstract
We discuss the results of a proton irradiation campaign of a GAGG:Ce (Cerium-doped Gadolinium Aluminium Gallium Garnet) scintillation crystal, carried out in the framework of the HERMES-TP/SP (High Energy Rapid Modular Ensemble of Satellites -- Technological and Scientific Pathfinder) mission. A scintillator sample was irradiated with 70 MeV protons, at levels equivalent to those expected in equatorial and sun-synchronous low-Earth orbits over orbital periods spanning 6 months to 10 years. The data we acquired are used to introduce an original model of GAGG:Ce afterglow emission. Results from this model are applied to the HERMES-TP/SP scenario, aiming at an upper-bound estimate of the detector performance degradation resulting from afterglow emission.
- Published
- 2022