Absorption spectroscopy of a radiatively heated samarium plasma

H. Merdji; T. Mißalla; T. Blenski; F. Perrot; J. C. Gauthier; K. Eidmann; C. Chenais-Popovics

doi:10.1103/PhysRevE.57.1042

Absorption spectroscopy of a radiatively heated samarium plasma

H. Merdji, T. Mißalla, T. Blenski, F. Perrot, J. C. Gauthier, K. Eidmann, C. Chenais-Popovics

Research output: Contribution to journal › Article › peer-review

Abstract

We present measurements of the samarium [Formula Presented] [Formula Presented]-shell absorption band around 11 Å (1.1 keV) at electron temperatures between 5 and 20 eV. Using point projection absorption spectroscopy, we measured the absolute transmission of an x-ray probe beam through a radiatively heated samarium plasma at different drive temperatures. The measurements show two principal absorption features corresponding to the spin-orbit-split [Formula Presented] transitions of Sm IV–Sm X ions. The influence of the heating on the spectral opacity shape was characterized by a shift of the absorption features to higher energy for a hotter plasma. The data are compared with calculations done with the superconfiguration code SCO for different plasma temperatures. The temperature and average ionization inferred from the analysis of the experiment are compared to radiative hydrodynamic simulations.

Original language	English
Pages (from-to)	1042-1046
Number of pages	5
Journal	Physical Review E
Volume	57
Issue number	1
DOIs	https://doi.org/10.1103/PhysRevE.57.1042
Publication status	Published - 1 Jan 1998

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title = "Absorption spectroscopy of a radiatively heated samarium plasma",

abstract = "We present measurements of the samarium [Formula Presented] [Formula Presented]-shell absorption band around 11 {\AA} (1.1 keV) at electron temperatures between 5 and 20 eV. Using point projection absorption spectroscopy, we measured the absolute transmission of an x-ray probe beam through a radiatively heated samarium plasma at different drive temperatures. The measurements show two principal absorption features corresponding to the spin-orbit-split [Formula Presented] transitions of Sm IV–Sm X ions. The influence of the heating on the spectral opacity shape was characterized by a shift of the absorption features to higher energy for a hotter plasma. The data are compared with calculations done with the superconfiguration code SCO for different plasma temperatures. The temperature and average ionization inferred from the analysis of the experiment are compared to radiative hydrodynamic simulations.",

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AU - Merdji, H.

AU - Mißalla, T.

AU - Blenski, T.

AU - Perrot, F.

AU - Gauthier, J. C.

AU - Eidmann, K.

AU - Chenais-Popovics, C.

PY - 1998/1/1

Y1 - 1998/1/1

N2 - We present measurements of the samarium [Formula Presented] [Formula Presented]-shell absorption band around 11 Å (1.1 keV) at electron temperatures between 5 and 20 eV. Using point projection absorption spectroscopy, we measured the absolute transmission of an x-ray probe beam through a radiatively heated samarium plasma at different drive temperatures. The measurements show two principal absorption features corresponding to the spin-orbit-split [Formula Presented] transitions of Sm IV–Sm X ions. The influence of the heating on the spectral opacity shape was characterized by a shift of the absorption features to higher energy for a hotter plasma. The data are compared with calculations done with the superconfiguration code SCO for different plasma temperatures. The temperature and average ionization inferred from the analysis of the experiment are compared to radiative hydrodynamic simulations.

AB - We present measurements of the samarium [Formula Presented] [Formula Presented]-shell absorption band around 11 Å (1.1 keV) at electron temperatures between 5 and 20 eV. Using point projection absorption spectroscopy, we measured the absolute transmission of an x-ray probe beam through a radiatively heated samarium plasma at different drive temperatures. The measurements show two principal absorption features corresponding to the spin-orbit-split [Formula Presented] transitions of Sm IV–Sm X ions. The influence of the heating on the spectral opacity shape was characterized by a shift of the absorption features to higher energy for a hotter plasma. The data are compared with calculations done with the superconfiguration code SCO for different plasma temperatures. The temperature and average ionization inferred from the analysis of the experiment are compared to radiative hydrodynamic simulations.

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DO - 10.1103/PhysRevE.57.1042

M3 - Article

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SN - 2470-0045

VL - 57

SP - 1042

EP - 1046

JO - Physical Review E

JF - Physical Review E

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ER -

Absorption spectroscopy of a radiatively heated samarium plasma

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