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El Haber, F., Rocquefelte, X., Andraud, C., Amrani, B., Jobic, S., Chauvet, O. & Froyer, G. (2012) Prediction of the transparency in the visible range of x-ray absorbing nanocomposites built upon the assembly of LaF3 or LaPO4 nanoparticles with poly(methyl methacrylate). J. Opt. Soc. Am. B-Opt. Phys. 29 305–311. 
Added by: Laurent Cournède (2016-03-10 21:28:39)
Type de référence: Article
Numéro d'identification (ISBN etc.): 0740-3224
Clé BibTeX: ElHaber2012
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Catégories: MIOPS, PMN
Mots-clés: 4-flux models, film, light-scattering, luminescence properties, media, nanocrystals, optical-properties, scattering transfer equation, solve
Créateurs: Amrani, Andraud, Chauvet, El Haber, Froyer, Jobic, Rocquefelte
Collection: J. Opt. Soc. Am. B-Opt. Phys.
Consultations : 5/493
Indice de consultation : 2%
Indice de popularité : 0.5%
Résumé     
A theoretical multiscale approach combining density functional theory and four-flux calculations based on the radiative transfer theory is used to prospect the optical properties of nanocomposite materials composed of inorganic nanoparticles of lanthanum-containing compounds (LaF3 or LaPO4) embedded in Poly(methyl methacrylate) (PMMA). This theoretical investigation shows that a potential route to produce lead-free x-ray shielding screens with high transparency in the visible range ({>}70\% of incident light) may consist in incorporating colorless LaF3 or LaPO4 spherical particles with a diameter lower than 6 nm in a PMMA panel from a minimum thickness of 3 mm with a volumetric fraction of at least 10\%. In terms of x-ray attenuation, this would lead to lead equivalency of 0.1 mm (lead foil). (C) 2012 Optical Society of America
Added by: Laurent Cournède  
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