Search results for " XRF."

showing 4 items of 24 documents

Integrated analytical methodologies for the non-invasive study of Cultural Heritage: the case study of Renaissance Statues of Abatellis Palace

2012

characterizarion XRF PCA UV-IF pictorial materials
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Volcanic products of Lipari (Aeolian islands, Italy): Multivariate analysis of petrographic and radiometric data

2010

Abstract A petrographic and radiometric study, along with statistical multivariate analysis of volcanic products of the island of Lipari (Aeolian islands, Italy) was carried out. The volcanological history of Lipari was reconstructed defining two stages (pre- and post-erosive stages) further on subdivided in four volcanic phases, each of which characterized by products with a particular chemical composition and separated by stratigraphic unconformities. The correlations between petrographic features, determined by X-ray fluorescence, and volcanological history of the island highlight a gradual differentiation with younger rocks showing a more acid chemical composition than the older ones. R…

geographyRadiationgeography.geographical_feature_categorybiologyAndesiteAndesitesLipari volcanic products XRF Gamma-ray spectrometry environmental radioactivity multivariate analysisGeochemistryMineralogybiology.organism_classificationVolcanic rockPetrographyIgneous rockVolcanoIsland arcRadiometric datingInstrumentationGeology
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Ori e cromie dei marmi rinascimentali di Palazzo Abatellis: indagine non invasiva tramite spettrometria XRF.

2009

in situ XRF spectrometry material characterizationSettore FIS/07 - Fisica Applicata(Beni Culturali Ambientali Biol.e Medicin)
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Tecniche spettroscopiche integrate per lo studio di pigmenti storici

2011

Tra le tecniche spettroscopiche per lo studio dei pigmenti storici, la fluorescenza a raggi X (XRF) e la spettroscopia mediante ablazione laser (LIBS) risultano complementari per le informazioni fornite in termini composizionali e di spessori indagati. A differenza dell'analisi XRF, la LIBS permette l'identificazione degli elementi chimici a basso Z e, attraverso impulsi laser consecutivi, consente di ricostruire la stratigrafia caratteristica del campione. Sono state condotte analisi spettroscopiche su frammenti di pitture murali provenienti da diversi siti e su pigmenti in polvere. I risultati hanno permesso di valutare le potenzialità, in campo archeometrico, della tecnica LIBS rispetto …

pigmenti storici XRF LIBS
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