X-ray Microscopy and Talbot Imaging with the Matter in Extreme Conditions X-ray Imager at LCLS
physics.ins-det
/ Authors
Eric Galtier, Hae Ja Lee, Dimitri Khaghani, Nina Boiadjieva, Peregrine McGehee, Ariel Arnott, Brice Arnold, Meriame Berboucha, Eric Cunningham, Nick Czapla
and 18 more authors
Gilliss Dyer, Bob Ettelbrick, Philip Hart, Philip Heimann, Marc Welch, Mikako Makita, Arianna E. Gleason, Silvia Pandolfi, Anne Sakdinawat, Yanwei Liu, Michael J. Wojcik, Daniel Hodge, Richard Sandberg, Maria Pia Valdivia, Victorien Bouffetier, Gabriel Pérez-Callejo, Frank Seiboth, Bob Nagler
/ Abstract
The last decade has shown the great potential that X-ray Free Electron Lasers (FEL) have to study High Energy Density (HED) physics. Experiments at FELs have made significant breakthroughs in Shock Physics and Dynamic Diffraction, Dense Plasma Physics and Warm Dense Matter Science, using techniques such as isochoric heating, inelastic scattering, small angle scattering and X-ray diffraction. In addition, and complementary to these techniques, the coherent properties of the FEL beam can be used to image HED samples with high fidelity. We present new imaging diagnostics and techniques developed at the Matter in Extreme Conditions (MEC) instrument at Linac Coherent Light Source (LCLS) over the last few years. We show results in Phase Contrast Imaging geometry, where the X-ray beam propagates from the target to a camera revealing its phase, as well as in Direct Imaging geometry, where a real image of the sample plane is produced in the camera with a spatial resolution down to 200 nm. Last, we show an implementation of the Talbot Imaging method allowing both X-ray phase and intensity measurements change introduced by a target with sub-micron resolution.