Compact Gamma-Ray Imager for UAV-Based Radioactivity Contamination Mapping

Résumé fourni par la source

In this study, the gamma-ray imager was miniaturized and lightened to increase the drone's flight time, and an unmanned aerial system (UAS) was constructed. A dose conversion factor (G-factor) and an altitude correction factor (ACF) were derived using Monte Carlo N-Particle eXtended (MCNPX)-PoliMi simulations and flight measurements. Dose rates at specific altitudes were obtained using a${ }^{137} \text{Cs}$source (34.74 MBq), and the derived ACF enables the estimation of ambient dose equivalent rates at a height of 1 m. Future work will apply the derived results to 2D satellite imagery and 3D map acquired using a light detection and ranging (LiDAR) to construct radioactivity contamination maps.

Ce résumé expose les affirmations des auteurs. BNTIC ne l’interprète pas comme une validation indépendante des résultats.