期刊
ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES
卷 127, 期 2, 页码 275-281出版社
IOP PUBLISHING LTD
DOI: 10.1086/313354
关键词
atomic data; atomic processes; hydrodynamics; methods : laboratory
Absorption of the 2p-3d transitions of iron has been measured using point projection spectroscopy. Thin C tamped Fe foils were heated around 20 eV by X-rays generated in gold spherical hohlraums irradiated by the high-power laser ASTERIX IV. Absorption of Fe v to Fe x has been observed in the spectral vicinity of 730 eV (17 Angstrom). The Ag backlighter source and absorbed spectra were recorded on the same shot by a TIAP crystal spectrograph. The experimental spectra have been reproduced by the two superconfiguration local thermodynamic equilibrium codes SCO and STA. Detailed statistical calculations of the different ionic structures have also been performed with the Spin Orbit Split Arrays method, allowing the determination of ion populations. The electron temperature and average ionization obtained by fitting the experiment with the different calculations were compared with radiative hydrodynamic simulations.
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