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Title: A Energy Dispersive X-Ray Fluorescence Spectrometry and Montecarlo Simulation Study of Iron-Age Nuragic Small Bronzes ("Navicelle") from Sardinia, Italy
Authors: schiavon, nicola
Keywords: Energy Dispersive X-Ray Fluorescence Spectroscopy
Monte Carlo simulations
Nuragic bronzes
Issue Date: 2016
Publisher: Elsevier B.V.
Citation: Spectrochimica Acta Part B 123, 42-46
Abstract: A spectrometric protocol combining Energy Dispersive X-Ray Fluorescence Spectrometry with Monte Carlo simulations of experimental spectra using the XRMC code package has been applied for the first time to characterize the elemental composition of a series of famous Iron Age small scale archaeological bronze replicas of ships (known as the “Navicelle”) from the Nuragic civilization in Sardinia, Italy. The proposed protocol is a useful, nondestructive and fast analytical tool for CulturalHeritage sample. InMonte Carlo simulations, each samplewasmodeled as amultilayered object composed by two or three layers depending on the sample: when all present, the three layers are the original bronze substrate, the surface corrosion patina and an outermost protective layer (Paraloid) applied during past restorations. Monte Carlo simulationswere able to account for the presence of the patina/corrosionlayer as well as the presence of the Paraloid protective layer. It also accounted for the roughness effect commonly found at the surface of corroded metal archaeological artifacts. In this respect, theMonte Carlo simulation approach adopted here was, to the best of our knowledge, unique and enabled to determine the bronze alloy composition together with the thickness of the surface layers without the need for previously removing the surface patinas, a process potentially threatening preservation of precious archaeological/artistic artifacts for future generations.
URI: doi:10.1016/j.sab.2016.07.011
Type: article
Appears in Collections:HERCULES - Publicações - Artigos em Revistas Internacionais Com Arbitragem Científica

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