XFEL2

[XOPT8-03] Enhancing elastic x-ray scattering by control of transient electronic populations

*Daniele Ronchetti^1,2,3, Andrei Benediktovitch³, Laurant Mercadier⁴, Sasa Bajt³, Henry Chapman^1,3, Nina Rohringer^1,2,3 (1. CFEL-UHH, 2. MPSP, 3. DESY, 4. EuXFEL)

XFELs opened the way for exploring non-linear x-ray matter interaction. Exploiting their extreme intensity we aim at controlling the scattering properties of individual atoms. A transient resonance is created by photoionization of an inner shell. Here, a resonant scattering channel for an x-ray probe pulse is opened, this enhances the atomic scattering factor with respect to the elastic case.