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Title of Journal: Appl Phys A

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Abbravation: Applied Physics A

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Springer-Verlag

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DOI

10.1007/978-90-481-3696-4_10

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1432-0630

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Laser studies of metallic artworks

Authors: E Drakaki M Kandyla E Chatzitheodoridis I Zergioti A A Serafetinides A Terlixi E Kouloumpi A P Moutsatsou M Doulgerides V Kantarelou A Karydas C VlachouMogire
Publish Date: 2010/07/16
Volume: 101, Issue: 2, Pages: 349-355
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Abstract

Museum curators and archaeologists use analytical science to provide important information on artworks and objects For example scientific techniques provide information on artwork elemental composition origin and authenticity and corrosion products while also finding use in the daytoday conservation of many historical objects in museums and archaeological sites around the world In this work two special cases are being discussedIn the first part of our work physicochemical studies of an icon on a metal substrate were carried out using nondestructive qualitative analysis of pigments and organicbased binding media employing various microscopic and analytical techniques such as Optical Fluorescence Microscopy XRF and Gas Chromatography In the second part of our work laser cleaning of late Roman coins has been performed using a Qswitched NdYAG laser 1064 nm 6 ns and a GaAlAs diode laser 780 nm 90 ps The corrosion products have been removed while we observe increased concentrations in Ag which is the main material of the silver plating found in late Roman coins

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