https://doi.org/10.1140/epjd/s10053-025-01114-7
Research - Plasmas
Fourier transform method of a detailed configuration accounting in hot plasma bound-bound opacity calculations
1
Russian Federal Nuclear Center — All-Russian Research Institute of Experimental Physics, Sarov, Russia
2
Sarov Physics and Technology Institute branch of the National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)., SarPhTI NRNU MEPhI, Sarov, Russia
a This email address is being protected from spambots. You need JavaScript enabled to view it.
, This email address is being protected from spambots. You need JavaScript enabled to view it.
Received:
11
November
2025
Accepted:
23
December
2025
Published online:
2
February
2026
G. Hazak and J. Kurzweil discovered a method of configurational resolution of transition arrays for the Super Transition Arrays approach to the bound-bound opacity calculation. Their method is based on the representation of the photoabsorption coefficient as the Fourier transform, the linearity of the transition energy between configurations with respect to shell occupation numbers, and factorization of the probabilities of configurations on shell occupation numbers. We propose a simplified variant of Hazak–Kurzweil method for the calculations with Detailed Configuration Accounting. The resulting expressions for the bound-bound opacity represent an alternative to the widely used ones and are quite convenient for numerical implementation.
Copyright comment Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
© The Author(s), under exclusive licence to EDP Sciences, SIF and Springer-Verlag GmbH Germany, part of Springer Nature 2026
Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
