Commissioning of a laser-plasma x-ray micro-focus source for phase contrast imaging.

Exploring phase contrast imaging with a laser-based Kα x-ray source up to relativistic laser intensity

“…With the new advanced driving laser sources, brightness comparable to the 3 rd generation of synchrotrons has been demonstrated 29,30 . Previous studies have shown the capacity of this source for PCI using the method of in-line or propagation-based phase contrast imaging (PBI) 31,33,34 for biological samples 30,[35][36][37][38][39] , for shock wave characterization in the context of fusion plasma 40 , or for material characterization at submicron scale 41 . These demonstrations have been mainly performed with low or kHz repetition rate laser systems for a fixed laser intensity without investigating the impact of this parameter on the PCI feasibility.…”