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Journal Article PHPPUBDB-17229

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Heterogeneous clusters as a model system for the study of ionization dynamics within tampered samples

 ;  ;  ;  ;  ;  ;  ; DESY

2011
APS College Park, Md.

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Abstract: Tampering of a sample with a layer of another material is a promising technique to slow down the expansion dynamics within laser irradiated samples, with sound implications for single-particle diffraction imaging. Ideally, if an imaged object is covered by a layer of another material, during the irradiation this layer will be primarily ionized and will expand fast due to Coulomb repulsion, whereas the object located within the net neutral core will expand more slowly (hydrodynamically). We investigate the details of the electronic damage within the tampered samples during their irradiation with an intense extreme ultraviolet (EUV) pulse. We study heterogeneous clusters composed of noble gas atoms, Xe and Ar, for which chemical-bond effects can be neglected. Using a fully nonequilibrium kinetic equation code, we demonstrate the influence of cluster composition on ionization dynamics; in particular, on the electronic damage. The results are obtained for the wavelength of 32 nm, which is available at the free-electron laser in Hamburg (FLASH) facility, but our conclusions can also have implications for samples with a more complex structure and irradiated at a much shorter wavelength.

Classification:

Contributing Institute(s):
  1. CFEL-Theory (FS-CFEL-3)
  2. CFEL-Coherent X-Ray Imaging (FS-CFEL-1)
  3. FS-Photon Science (FS-PS)
Research Program(s):
  1. FS In-house research / theory (POF2-544) (POF2-544)
Experiment(s):
  1. No specific instrument

Appears in the scientific report 2011
Database coverage:
OpenAccess ; OpenAccess ; JCR ; No Author Disambiguation ; Thomson Reuters Master Journal List ; Web of Science Core Collection
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The record appears in these collections:
Private Collections > >DESY > >FS > FS-CFEL-1
Private Collections > >DESY > >FS > FS-CFEL-3
Private Collections > >DESY > >FS > FS-PS
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 Record created 2012-09-19, last modified 2023-02-17


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