On-ground calibrations of XGRE: An ultrafast gamma-ray spectrometer onboard the TARANIS mission for TGF studies
Résumé
XGRE (X-ray, Gamma-ray and Relativistic Electrons detector) was one of the main instruments onboard the TARANIS satellite. It is an ultra-fast gamma-ray and electron detector, with a 350 ns dead time, built for measuring Terrestrial Gamma-ray Flashes (TGF). In this paper, we will shortly present the TARANIS mission, the design of the XGRE instrument and the measured performances during the instrument calibration at APC, LESIA and payload calibrations done onboard the satellite at CNES.