Journal
HIGH ENERGY DENSITY PHYSICS
Volume 9, Issue 3, Pages 407-409Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.hedp.2013.03.008
Keywords
52.25.Os: Emission; Absorption and scattering of radiation; 52.38.-r: Laser-plasma interaction; 52.70.-m: Plasma diagnostic techniques; 56.65.Rr: Particle in cell method
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Funding
- U.S. Department of Energy by Lawrence Livermore National Laboratory [DE-AC52-07NA27344]
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Recent calculations [Nilsen et al. arXiv:1212.5972] predict that contributions to the scattered photon spectrum from 3s and 3p bound states in chromium (Z = 24) at metallic density and T = 12 eV resonate below the respective bound-state thresholds. These resonances are shown to be closely related to continuum lowering, where 3d bound states in the free atom dissolve into a resonant l = 2 partial wave in the continuum. The resulting d-state resonance dominates contributions to the bound-free dynamic structure function, leading to the predicted resonances in the scattered X-ray spectrum. Similar resonant features are shown to occur in all elements in the periodic table between Ca and Mn (20 <= Z <= 25). (C) 2013 Elsevier B.V. All rights reserved.
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