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Abstract of [Son19b]

Relativistic and resonant effects on x-ray multiphoton multiple ionization of heavy atoms

Sang-Kil Son, Koudai Toyota, Robin Santra, Benedikt Rudek, Artem Rudenko, and Daniel Rolles

83rd Annual Meeting of the DPG and DPG Spring Meeting of the Section AMOP
(German Physical Society, Rostock, Germany, March 11-15, 2019) [oral presentation]

[bib][BibTeX][slide][slide: 5Mb][link]https://www.dpg-verhandlungen.de/year/2019/conference/rostock/part/a/session/28/contribution/7?lang=en

An accurate description of the interaction of intense hard x-ray pulses with heavy atoms, which is crucial for many applications of x-ray free- electron lasers (XFELs), represents a hitherto unresolved challenge for theory because of the enormous number of electronic configurations and relativistic effects to be taken into account. Here we present a joint experimental and theoretical study of xenon atoms irradiated by unprecedentedly high-intensity hard x-rays up to 2×1019 W/cm2. Our results show the interplay of relativistic and resonant effects on x-ray multiphoton multiple ionization of heavy atoms and demonstrate the predictive power of the theoretical model, which provides a basis for accurate modeling of radiation damage in XFEL experiments.

Tags: Xe, relativity, resonance, excitation, damage, heavy atom, x-ray, REXMI, LCLS, experiment, XATOM, XFEL, CFEL, DESY

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