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Titolo:
Radiative heating of B, Al and Ni thin foils at 15-25 eV temperatures
Autore:
Chenais-Popovics, C; Gilleron, F; Fajardo, M; Merdji, H; Missalla, T; Gauthier, JC; Renaudin, P; Gary, S; Bruneau, J; Perrot, F; Blenski, T; Folsner, W; Eidmann, K;
Indirizzi:
Univ Paris 06, Ecole Polytech, CEA, UMR 7605 CNRS,Lab Utilisat Lasers Intenses, F-91128 Palaiseau, France Univ Paris 06 Palaiseau France F-91128 tenses, F-91128 Palaiseau, France Ctr Etud Bruyeres Le Chatel, F-91680 Bruyeres Le Chatel, France Ctr Etud Bruyeres Le Chatel Bruyeres Le Chatel France F-91680 el, France Ctr Etud Saclay, DRECAM, SPAM, F-91191 Gif Sur Yvette, France Ctr Etud Saclay Gif Sur Yvette France F-91191 191 Gif Sur Yvette, France Max Planck Inst Quantenopt, Garching, Germany Max Planck Inst Quantenopt Garching Germany antenopt, Garching, Germany
Titolo Testata:
JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER
fascicolo: 1-3, volume: 65, anno: 2000,
pagine: 117 - 133
SICI:
0022-4073(200004/05)65:1-3<117:RHOBAA>2.0.ZU;2-R
Fonte:
ISI
Lingua:
ENG
Soggetto:
LASER-PRODUCED PLASMAS; ABSORPTION-SPECTROSCOPY; TRANSITION-ARRAYS; OPACITY MEASUREMENTS; ALUMINUM PLASMA; ATOMIC SPECTRA; ENERGY-LEVELS; DISTRIBUTIONS; TRANSPORT; VARIANCE;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
46
Recensione:
Indirizzi per estratti:
Indirizzo: Chenais-Popovics, C Univ Paris 06, Ecole Polytech, CEA, UMR 7605 CNRS,Lab Utilisat Lasers Intenses, F-91128 Palaiseau, France Univ Paris 06 Palaiseau France F-91128 iseau, France
Citazione:
C. Chenais-Popovics et al., "Radiative heating of B, Al and Ni thin foils at 15-25 eV temperatures", J QUAN SPEC, 65(1-3), 2000, pp. 117-133

Abstract

Several thin foils have been heated by X-ray radiation emitted by a small gold cavity irradiated with the LULI facility Nd glass laser. The foils were heated to moderate temperatures (10-25 eV) in conditions near local thermodynamic equilibrium. Measurements of the absorption of K alpha transitionsof aluminum, of the K-shell transitions of boron, and of the n = 2-3 and 4transitions of nickel are reported. A 5000 l/mm transmission grating spectrograph recorded the boron data, and a flat thallium hydrogen phthalate (TlAP) crystal was used for aluminum and nickel absorption measurements. The nickel and aluminum spectra indicate a higher temperature (22-25 eV) than the boron case (14 eV), explained by a difference in the absorption spectra of these elements, In the Ni case the measured 2p-3d spin-orbit-split absorption structures compared well with theoretical spectra obtained with the SCO superconfiguration code using the spin orbit split transition arrays formalism (SOSA). The heating of the foils as calculated with radiative hydrodynamic simulations is very similar to the experimental data. (C) 2000 Elsevier Science Ltd. All rights reserved.

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Documento generato il 27/09/20 alle ore 13:44:16