Opacity calculation for aluminum, iron, and gold plasmas using FLYCHK code
- Authors
- Cho, M.S.; Matsuo, K.; Fujioka, S.; Hahn, S.J.; Cho, B.I.; Chung, H.-.K.
- Issue Date
- Dec-2020
- Publisher
- Elsevier Ltd
- Keywords
- FLYCHK; Opacity; Planck mean opacity; Population kinetics; Rosseland mean opacity
- Citation
- Journal of Quantitative Spectroscopy and Radiative Transfer, v.257
- Journal Title
- Journal of Quantitative Spectroscopy and Radiative Transfer
- Volume
- 257
- URI
- https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/52082
- DOI
- 10.1016/j.jqsrt.2020.107369
- ISSN
- 0022-4073
1879-1352
- Abstract
- The opacity information of a finite-temperature plasma is an important property and requires the population distribution of a given plasma condition. A population kinetic code for plasma spectroscopy, FLYCHK, has been widely used by researchers to study the spectroscopic properties of high-energy-density plasmas under a wide range of conditions. In this study, the FLYCHK calculation of the Planck and Rosseland mean opacities of low- to high-Z elements, such as aluminum (Z = 13), iron (Z = 26), and gold (Z = 79), under a wide temperature and density range (T = 10−3–102 keV, ρ = 10−6–102 g/cc) is reported. This study mainly focused on the quantitative comparisons of FLYCHK opacities with commonly used opacities: ATOMIC and PROPACEOS. Comparisons show that the FLYCHK mean opacities are comparable to other results over a wide range of plasma conditions. Aluminum opacities were analyzed in detail to understand the characteristics of FLYCHK opacity simulations. © 2020 Elsevier Ltd
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