LASER-DRIVEN GAMMA IMAGING STUDIES AND EXPERIMENTS FOR APPLICATIONS DEVELOPMENT AT EXTREME LIGHT INFRASTRUCTURE-NUCLEAR PHYSICS (ELI-NP) 100 TW

High-intensity photon beam sources in the range of multi-MeV are the key tools in many research fields, such as nuclear, atomic, materials and astrophysics sciences, and especially in medical gamma therapies and non-destructive testing applications. Surprisingly, nowadays microfocus-size gamma ray sources of multi-MeV energy range able to produce 2D radiographic images and 3D tomograms of scanned objects at high-resolution of few/tens microns size are not available. We are proposing the development of a multi-annual research and an experimental program, focusing on increasing the theoretical knowledge regarding the laser interactions with matter and on the improvement of the various set-ups able to produce high-intensity gamma beams, with small focal spot size and the required divergence. For each set-up a set of new experiments will be dedicated to a better characterization of the gamma source capabilities and to improving the theoretical model. The scientific and experimental work in this program will finally allow us to predict and optimize various laser-driven gamma beam emission configurations, as a starting tool for further potential development of stand-alone microfocus gamma ray sources projects for the development of medical, scientific and industrial applications.


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