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Metal sheets thickness determined by energy-dispersive X-ray fluorescence analysis

Cesareo, Roberto and Brunetti, Antonio (2008) Metal sheets thickness determined by energy-dispersive X-ray fluorescence analysis. Journal of X-Ray Science and Technology, Vol. 16 (2), p. 119-130. eISSN 1095-9114. Article.

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Abstract

A portable EDXRF equipment was employed to analyze pre-Columbian metals (gold, silver and copper objects) and to determine the thickness of gold in the case of gildings. To this aim, the EDXRF equipment was optimized to detect Cu, Au and Ag, and various methods were developed to determine from X-ray spectra (K-lines ratio) the thickness of the gildings. These methods were first tested to measure gilding compositions and thicknesses of pens and decorative objects. Then pre-Columbian metals were analyzed, such as gold, silver, copper, gilded copper and gilded silver objects from the Royal Tomb of Sipán and from the Museum of Sicán, in the north of Peru.

Item Type:Article
ID Code:4652
Status:Published
Refereed:Yes
Uncontrolled Keywords:X-ray fluorescence, portable equipment, ratio of K-lines, gilded objects, silvered objects, Sipán alloys, Sicán alloys
Subjects:Area 02 - Scienze fisiche > FIS/07 Fisica applicata (a beni culturali, ambientali, biologia e medicina)
Divisions:001 Università di Sassari > 03 Istituti > Matematica e fisica
Publisher:IOS Press
eISSN:1095-9114
Deposited On:12 Oct 2010 12:37

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