A project based on multi-configuration Dirac-Fock calculations for plasma spectroscopy

被引：4

作者：

Comet, M. ^{[1
]}

Pain, J. -C. ^{[1
]}

Gilleron, F. ^{[1
]}

Piron, R. ^{[1
]}

机构：

[1] CEA, DAM, DIF, F-91297 Arpajon, France

来源：

HIGH ENERGY DENSITY PHYSICS | 2017年 / 24卷

关键词：

MCDF; Plasma spectroscopy; Opacity; PRTA; Cross-sections calculations; TRANSITION ARRAY MODEL; ATOMIC SPECTRA; ENERGY-LEVELS; OPACITY CALCULATIONS; ELECTRON-IMPACT; IONS; VARIANCE; DISTRIBUTIONS; EXCITATION; CODE;

D O I：

10.1016/j.hedp.2017.05.010

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

We present a project dedicated to hot plasma spectroscopy based on a Multi-Configuration Dirac Fock (MCDF) code, initially developed by J. Bruneau. The code is briefly described and the use of the transition state method for plasma spectroscopy is detailed. Then an opacity code for local-thermodynamic-equilibrium plasmas using MCDF data, named OPAMCDF, is presented. Transition arrays for which the number of lines is too large to be handled in a Detailed Line Accounting (DLA) calculation can be modeled within the Partially Resolved Transition Array method or using the Unresolved Transition Arrays formalism in jj-coupling. An improvement of the original Partially Resolved Transition Array method is presented which gives a better agreement with DLA computations. Comparisons with some absorption and emission experimental spectra are shown. Finally, the capability of the MCDF code to compute atomic data required for collisional-radiative modeling of plasma at non local thermodynamic equilibrium is illustrated. In addition to photoexcitation, this code can be used to calculate photoionization, electron impact excitation and ionization cross-sections as well as autoionization rates in the Distorted-Wave or Close Coupling approximations. Comparisons with cross-sections and rates available in the literature are discussed. (C) 2017 Elsevier B.V. All rights reserved.

引用

页码：1 / 8

页数：8

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