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BibTeX file of [Son23] [show it without abstract] @conference{Son23, author={Sang-Kil Son}, title={New opportunities in x-ray spectroscopy at high intensity}, year={2023}, month={July 20}, booktitle={XFEL Special Seminar}, institution={PAL XFEL}, school={POSTECH}, address={Pohang, Korea}, keywords={XATOM; Ne; Xe; European XFEL; CFEL; DESY;}, note={invited talk}, abstract={Understanding the interaction of intense x-ray pulses with atoms is crucial for many experiments with x-ray free-electron lasers (XFELs). When atoms are exposed to XFEL pulses, they undergo complex ionization dynamics, producing transient exotic states and highly charged ions after absorbing many x-ray photons sequentially. This x-ray multiphoton ionization mechanism has been the key concept to understand the XFEL--atom interaction, since the first XFEL experiment of Ne gas was conducted. I will briefly review the x-ray multiphoton ionization model and introduce a dedicated theoretical toolkit, XATOM. Can we visualize the complex charge-up pathways? Will it be possible to map out all the transient resonances that are formed during the ionization dynamics? With a combination of latest development of XATOM and free tunability of the photon energy at European XFEL, I will present how to answer those questions and discuss new opportunities of x-ray ion spectroscopy and x-ray emission spectroscopy with intense XFEL pulses.} } Sang-Kil Son, New opportunities in x-ray spectroscopy at high intensity in XFEL Special Seminar (PAL XFEL, POSTECH, Pohang, Korea, July 20, 2023) [invited talk] ![[pdf]](/biblio/img/pdf.gif) [pdf]![[abstract]](/biblio/img/abstract.gif) [abstract]
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