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Titolo:
Detailed spectral line effects on the radiative opacity of laser-produced Al plasmas
Autore:
Zeng, JL; Jin, FT; Yuan, JM;
Indirizzi:
Natl Univ Def Technol, Dept Appl Phys, Changsha 410073, Peoples R China Natl Univ Def Technol Changsha Peoples R China 410073 3, Peoples R China
Titolo Testata:
CHINESE PHYSICS LETTERS
fascicolo: 7, volume: 18, anno: 2001,
pagine: 924 - 926
SICI:
0256-307X(200107)18:7<924:DSLEOT>2.0.ZU;2-9
Fonte:
ISI
Lingua:
ENG
Soggetto:
X-RAY TRANSMISSION; TRANSITION-ARRAYS; ATOMIC SPECTRA; ENERGY-LEVELS; DISTRIBUTIONS; VARIANCE; HOT; ALUMINUM;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
22
Recensione:
Indirizzi per estratti:
Indirizzo: Zeng, JL Natl Univ Def Technol, Dept Appl Phys, Changsha 410073, Peoples RChina Natl Univ Def Technol Changsha Peoples R China 410073 s R China
Citazione:
J.L. Zeng et al., "Detailed spectral line effects on the radiative opacity of laser-produced Al plasmas", CHIN PHYS L, 18(7), 2001, pp. 924-926

Abstract

The detailed term accounting (DTA) approximation for the line absorption and the average atom (AA) model for bound-free and free-free absorption are used to calculate the radiative opacity of high-power laser-produced plasmas in local thermodynamic equilibrium (LTE). The spectral resolved opacitiesof Al plasmas are calculated at the temperatures and densities of 40 eV and 0.0135 g/cm(3), and 58 eV and 0.02 g/cm(3). Rosseland and Planck mean opacities are obtained by integrating the spectral resolved opacities with Rosseland and Planck weighting functions. The results show that the Rosseland mean opacity is very sensitive to the detailed profile. Radiative opacitiesunder the same plasma conditions are also obtained by using a completely pure AA model. The results from the DTA and pure AA models are then compared.

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Documento generato il 30/10/20 alle ore 00:46:47