Results 51 to 60 of about 162 (82)

Gold charge state distributions in highly ionized, low-density beam plasmas [PDF]

, 2011
B. G. Wilson, J. Scofield, K. Wong, M. J. May, M. J. May, M. Schneider, P. Beiersdorfer, R. F. Heeter, S. B. Hansen   +8 more
core   +1 more source

Helioseismic inference of the solar radiative opacity. [PDF]

Nat Commun
Buldgen G, Pain JC, Cossé P, Blancard C, Gilleron F, Pradhan AK, Fontes CJ, Colgan J, Noels A, Christensen-Dalsgaard J, Deal M, Ayukov SV, Baturin VA, Oreshina AV, Scuflaire R, Pinçon C, Lebreton Y, Corbard T, Eggenberger P, Hakel P, Kilcrease DP.   +20 more
europepmc   +1 more source

Steady-State and Time-Dependent LPP Modeling [PDF]

, 2010
Dunne, P., O Sullivan, G., White, J.
core   +2 more sources

Design of the Energy Partitioning Energy Coupling (EPEC) NIF Experiment [PDF]

, 2013
Brooksby, C. A., Brown, C. G., Compton, S. M., Dunlop, W. H., Fournier, K. B., Guyton, R., Huffman, E. J., Kane, J. O., Lomov, I. N., Masters, N. D., May, M. J., Mirkarimi, P. B., Scott, H. A., Smith, E. A., Strozzi, D. J., Vorobiev, O. Y., Zimmerman, G. B.   +16 more
core   +1 more source

Structure and spectroscopy of U4+ defects in Cs2ZrCl6: ab initio theoretical studies on the 5f2 and 5f16d1 manifolds [PDF]

, 2003
Barandiarán, Zoila, Seijo, Luis
core   +1 more source

A superconfiguration code based on the local density approximation

Journal of Quantitative Spectroscopy and Radiative Transfer, 2000
Abstract The local density approximation (LDA) has been applied in a version of the SCO code based on the superconfiguration method. The self-consistent-field LDA equations for each superconfiguration are obtained by minimization of the free-energy functional with an appropriate number of constraints which guarantee the required populations of ...
A. Grimaldi, F. Perrot, Thomas Blenski
openaire   +3 more sources

On the superconfiguration approach to model NLTE plasma emission

Journal of Quantitative Spectroscopy and Radiative Transfer, 2001
Abstract We discuss some aspects of the superconfiguration approach as applied to NLTE problems. The framework of this study is the AVERROES/TRANSPEC model developed for simulating non-LTE spectra. The model acts as a postprocessor to plasma hydrodynamics simulations.
O. Peyrusse
openaire   +3 more sources

Superconfiguration widths and their effects on atomic models

High Energy Density Physics, 2011
Abstract Superconfigurations are an important component of many of the collisional-radiative atomic models that are used to predict the properties of atoms and ions in non-local thermodynamic equilibrium (non-LTE) plasmas. In this paper, we investigate the statistical properties of superconfigurations and derive expressions for their approximate ...
Jacques Bauche, Claire Bauche-Arnoult, Stephanie Hansen   +2 more
openaire   +3 more sources

The temperature law for superconfigurations in non-LTE plasmas

Journal of Quantitative Spectroscopy and Radiative Transfer, 2001
Abstract It is shown that, in non-LTE hot plasmas, the atomic processes tend to establish a temperature law, i.e., a decreasing-exponential law vs. energy, for the total atomic populations of the configurations within each superconfiguration (SC). The SCs are defined by the occupancy numbers of atomic shells.
C. Bauche-Arnoult, J. Bauche
openaire   +3 more sources

Stable method for the calculation of partition functions in the superconfiguration approach

Physical Review E, 2004
A general method for the calculation of the partition function of a canonical ensemble of noninteracting bound electrons is presented. It consists in a doubly recursive procedure with respect to the number of electrons and the number of orbitals. Contrary to existing approaches, this recursion relation contains no alternate summation of positive and ...
Franck, Gilleron, Jean-Christophe, Pain
openaire   +3 more sources