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BibTeX file of [Son11c] [show it without abstract]

@conference{Son11c,
    author={Sang-Kil Son and Linda Young and Robin Santra},
    title={Impact of hollow-atom formation on coherent x-ray scattering at high intensity},
    year={2011},
    month={March 13-18},
    booktitle={75th Annual Meeting of the DPG and DPG Spring Meeting},
    organization={German Physical Society},
    address={Dresden, Germany},
    keywords={hollow-atom; damage; ionization; Auger; fluorescence; x-ray scattering; x-ray diffraction; molecular imaging; FEL; C; CFEL; DESY; DPG;},
    note={poster},
    url={http://www.dpg-verhandlungen.de/year/2011/conference/dresden/part/a/session/26/contribution/15},
    abstract={X-ray free-electron lasers (FELs) are promising tools for structural determination of macromolecules via coherent x-ray scattering. The key obstacle for scattering imaging is radiation damage by ultraintense x-ray pulses. We develop a toolkit to treat detailed ionization, relaxation, and scattering dynamics for an atom within a consistent theoretical framework, and investigate the coherent x-ray scattering problem for a carbon atom including radiation damage. We find that the x-ray scattering intensity saturates at a high fluence but can be maximized by using a pulse duration much shorter than the relaxation time scales of the inner-shell vacancy states created. Under these conditions, both inner-shell electrons are removed, and the resulting hollow atom gives rise to a scattering pattern with little loss of quality for a desirable resolution. % for a spatial resolution $> 1$~\AA. Our numerical results predict that in order to scatter from a carbon atom 0.1 photons per x-ray pulse, within a spatial resolution of 1.7~\AA, a fluence of $10^{7}$ photons/\AA$^2$ per pulse is required at a pulse length of 1~fs and a photon energy of 12~keV. By using a pulse length of a few hundred attoseconds, one can suppress even secondary ionization processes in extended systems. The present results suggest that high-brightness attosecond x-ray FELs would be ideal for single-shot imaging of individual macromolecules.
    } }

Sang-Kil Son, Linda Young, and Robin Santra, Impact of hollow-atom formation on coherent x-ray scattering at high intensity in 75th Annual Meeting of the DPG and DPG Spring Meeting (German Physical Society, Dresden, Germany, March 13-18, 2011) [poster] [abstract][abstract][link][link]


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