Please use this identifier to cite or link to this item: http://hdl.handle.net/10553/46069
Title: Analytical opacity formulas for ICF elements
Authors: Mínguez, E.
Martel, P. 
Gil, J. M. 
Rubiano, JG 
Rodríguez, R. 
UNESCO Clasification: 220410 Física de plasmas
Keywords: ICF
Opacities
Issue Date: 2002
Publisher: 0920-3796
Journal: Fusion Engineering and Design 
Conference: Meeting on Physics and Technology of Inertial Fusion Energy Targets and Chambers 
Abstract: Local Thermodynamic Equilibrium (LTE) opacity codes have been developed by the Instituto de Fusión Nuclear (DENIM) during the last years. JIMENA code (Laser and Particle Beams 6 (1998) 265; Laser and Particle Beams 10 (1992) 651) is an opacity code that solves self-consistently, for each temperature and density, the radial Dirac equation with a local spherically symmetrical potential. Very recently we have developed a new opacity code, called ANALOP, that uses an analytical potential (JQSRT 54 (1995) 621), which can include density and temperature effects for atomic data calculations. Opacities are determined with these two codes for selected elements at different plasma conditions. This work is focused on the determination of Rosseland and Planck mean analytical formulas for several single elements used in ICF targets. A scaling law of these mean opacities is given as a function of the plasma parameters: electron temperature and plasma density. These opacities have been tested with numerical results from other codes and with available experimental results.
URI: http://hdl.handle.net/10553/46069
ISSN: 0920-3796
DOI: 10.1016/S0920-3796(01)00592-0
Source: Fusion Engineering and Design [ISSN 0920-3796], v. 60, p. 17-25
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