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Gaillou, E., Fritsch, E. & Notari, F. (2008) Photoinduced H1b and H1c centers in some natural treated diamonds. Diam. Relat. Mat. 17 2029–2036. 
Added by: Laurent Cournède (2016-03-10 21:58:40)
Type de référence: Article
DOI: 10.1016/j.diamond.2008.06.006
Numéro d'identification (ISBN etc.): 0925-9635
Clé BibTeX: Gaillou2008
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Catégories: MIOPS
Mots-clés: absorption-lines, Absorptions, Defects, h2, h3 centers, ib diamond, Natural diamonds, photochromic behavior, Photoinduced optical centers
Créateurs: Fritsch, Gaillou, Notari
Collection: Diam. Relat. Mat.
Consultations : 1/922
Indice de consultation : 6%
Indice de popularité : 1.5%
Résumé     
Three natural, treated-color diamonds present photoinduced H1b/H1c centers after UV exposure. As the H1b/H1c absorptions increase. that of the 595 not center decreases. Recovery Occurs by simple exposure to a standard incandescent 100 W lamp. The centers implied are all related to nitrogen and to the existence of a treatment, the formation of H1b/H1c centers coming from the trapping of the 595 nm center. The photoinduced behavior seems to confirm the close relation between the 595 nm center and the H1b/H1c centers, and might help in gemological identification. (C) 2008 Elsevier B.V. All rights reserved.
Added by: Laurent Cournède  
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