English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/83029
logo share SHARE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:


Cluster linkages between luminescence emission spectra and continuous trapdistribution in a volcanic sanidine

AuthorsGarcía-Guinea, Javier ; Correcher, Virgilio; Delgado Peris, Antonio; Sánchez Muñoz, Luis
Issue Date2003
CitationRadiation Measurements, (37):473 – 477 (2003)
AbstractVolcanic sanidine shows two important characteristics involved in the luminescence emission: (i) a near-infrared emission centred around 700 nm, attributed to Fe3+ substituted for Al3+, and (ii) a Si¿Al highly disordered crystallographic lattice of natural, recently pre-annealed feldspars. Thermoluminescence emission spectra have been obtained from well-characterised transparent crystals of sanidine using a high sensitivity spectrometer. Tests of thermal stability at di9erent temperatures show a continuous trap distribution with progressive changes in the glow curve shape, intensity and temperature position of the peak maximum. The characteristic broad blue emission band displays cluster linkages between blue and red emissions which can be explained by thermal alkali self-di9usion through both bulk and interfaces producing redox changes of the iron ion valence. These complex phenomena could also explain the large fading and tunnelling recombination of sanidine.
Identifiersdoi: 10.1016/S1350-4487(03)00023-4
Appears in Collections:(MNCN) Comunicaciones congresos
Files in This Item:
File Description SizeFormat 
accesoRestringido.pdf15,38 kBAdobe PDFThumbnail
Show full item record
Review this work

Related articles:

WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.