Space applications of GAGG:Ce scintillators: a study of afterglow emission by proton irradiation

• Autoři: DILILLO Giuseppe; ZAMPA Nicola; CAMPANA Riccardo; FUSCHINO Fabio; PAULETTA Giovanni; RASHEVSKAYA Irina; AMBROSINO Filippo; BARUZZO Marco; CAUZ Diego; CIRRINCIONE Daniela; CITOSSI Marco; CASA Giovanni Della; DI RUZZA Benedetto; EVANGELISTA Yuri; GALGÓCZI Gábor; LABANTI Claudio; ŘÍPA Jakub; TOMMASINO Francesco; VERROI Enrico; FIORE Fabrizio; VACCHI Andrea
• Rok publikování: 2022
• Druh: Článek v odborném periodiku
• Časopis / Zdroj: Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms
• Fakulta / Pracoviště MU: Přírodovědecká fakulta
• www: https://www.sciencedirect.com/science/article/pii/S0168583X2100416X
• Doi: http://dx.doi.org/10.1016/j.nimb.2021.12.006
• Klíčová slova: Scintillators; Scintillation afterglow; Proton irradiation; GAGG; Nanosatellites; Near-earth radiation environment
• Popis: We discuss the results of a proton irradiation campaign of a GAGG:Ce (Cerium-doped Gadolinium Aluminum 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.

Související projekty

• MUNI Award in Science and Humanities 3