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

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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 RUZZA Benedetto Di EVANGELISTA Yuri GALGÓCZI Gábor LABANTI Claudio ŘÍPA Jakub TOMMASINO Francesco 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

Citace
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.
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