Femtosecond multimodal imaging with a laser-driven X-ray source

oleh: Adam Doherty, Sylvain Fourmaux, Alberto Astolfo, Ralf Ziesche, Jonathan Wood, Oliver Finlay, Wiebe Stolp, Darren Batey, Ingo Manke, François Légaré, Matthieu Boone, Dan Symes, Zulfikar Najmudin, Marco Endrizzi, Alessandro Olivo, Silvia Cipiccia

Format: Article
Diterbitkan: Nature Portfolio 2023-10-01

Deskripsi

Abstract Laser-plasma accelerators are compact linear accelerators based on the interaction of high-power lasers with plasma to form accelerating structures up to 1000 times smaller than standard radiofrequency cavities, and they come with an embedded X-ray source, namely betatron source, with unique properties: small source size and femtosecond pulse duration. A still unexplored possibility to exploit the betatron source comes from combining it with imaging methods able to encode multiple information like transmission and phase into a single-shot acquisition approach. In this work, we combine edge illumination-beam tracking (EI-BT) with a betatron X-ray source and present the demonstration of multimodal imaging (transmission, refraction, and scattering) with a compact light source down to the femtosecond timescale. The advantage of EI-BT is that it allows multimodal X-ray imaging technique, granting access to transmission, refraction and scattering signals from standard low-coherence laboratory X-ray sources in a single shot.