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Opacity effects in a solid-density aluminium plasma created by photo-excitation with an X-ray laser.
- Source :
- High Energy Density Physics; Jun2014, Vol. 11, p59-69, 11p
- Publication Year :
- 2014
-
Abstract
- Abstract: The intensities within the focal spots of the output of recently developed X-ray sources based on free-electron-laser (FEL) technology are so great that atoms within the focal region can potentially absorb several photons during the few tens of femtosecond X-ray pulse. Furthermore, the duration of the FEL X-ray pulse is comparable to the Auger decay times of inner-shell holes created by the X-rays themselves. We report here how such a scenario can lead to opacity broadening of the fluorescence radiation emitted by the hot, dense plasma, which is created as a result of the X-radiation focussed onto a solid target, and in particular present calculations of the broadening of the K <subscript>α</subscript> emission in a solid-density aluminium target, produced when the FEL photon energy is tuned below the Al K-edge, but is resonant with the K <subscript>α</subscript> transition. [Copyright &y& Elsevier]
Details
- Language :
- English
- ISSN :
- 15741818
- Volume :
- 11
- Database :
- Supplemental Index
- Journal :
- High Energy Density Physics
- Publication Type :
- Academic Journal
- Accession number :
- 96349837
- Full Text :
- https://doi.org/10.1016/j.hedp.2014.02.003