Studies of GAGG:Ce scintillators for space missions dedicated to Terrestrial Gamma-Ray Flashes and Gamma-Ray Bursts observation

Fast Gamma ray Spectrometer (FGS) is an on-going detector development for the observation of transient gamma ray events such as Terrestrial Gamma ray Flashes (TGFs) produced in Earth’s thunderstorms and Gamma Ray Bursts (GRBs) produced in the far Universe. In this work, we compare different Cerium-d...

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Published in:Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment Accelerators, spectrometers, detectors and associated equipment, 2024-12, Vol.1069, p.169997, Article 169997
Main Authors: Pallu, Melody, Pailot, Damien, Bréelle, Eric, Laurent, Philippe, Carron, Jérôme, Lebrun, François, Koumeir, Charbel, Chapron, Claude, Biernacki, Kévin
Format: Article
Language:English
Subjects:
GAGG crystal scintillator
Gamma ray spectrometer
GRB detection
Proton irradiation
TGF detection
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Summary:Fast Gamma ray Spectrometer (FGS) is an on-going detector development for the observation of transient gamma ray events such as Terrestrial Gamma ray Flashes (TGFs) produced in Earth’s thunderstorms and Gamma Ray Bursts (GRBs) produced in the far Universe. In this work, we compare different Cerium-doped Gadolinium Aluminium Gallium Garnet (GAGG:Ce) scintillators, associated with Silicon Photo-Multipliers (SiPMs), quantifying their performances at atmospheric pressure and under vacuum, with different surface conditions. We also study their afterglow following proton irradiation, similar to what will be observed in space environment. Our measurements with GAGG:Ce scintillators after proton irradiation confirm that GAGG:Ce can be used in space. •Comparison of different GAGG:Ce’s characteristics.•Proton irradiation of GAGG:Ce crystals to investigate the induced afterglow.•Validation of the GAGG:Ce associated with SiPM technology for space application.
ISSN:0168-9002
DOI:10.1016/j.nima.2024.169997