Salerno Exultet: its characterization by Raman and PIXE-alpha analyses

Marina Bicchieri; Michele Nardone; Giuseppe Pappalardo; Lighea Pappalardo; Francesco Paolo Romano; Pio Alfonso Russo; Armida Sodo

doi:10.1117/12.445666

22 October 2001 Salerno Exultet: its characterization by Raman and PIXE-α analyses

Marina Bicchieri, Michele Nardone, Giuseppe Pappalardo, Lighea Pappalardo, Francesco Paolo Romano, Pio Alfonso Russo, Armida Sodo

Author Affiliations +

Proceedings Volume 4402, Laser Techniques and Systems in Art Conservation; (2001) https://doi.org/10.1117/12.445666
Event: Lasers in Metrology and Art Conservation, 2001, Munich, Germany

Abstract

Two non-destructive techniques, Raman spectroscopy and particle induced x-ray emission spectrometry, were used for a compete connotation of the Salerno Exultet, an illuminated parchment dated back to 13th century. The Salerno Exultet exhibits several areas which have underdone restoration treatments during the years. The complete connotation of this masterpiece was necessary in order to identify and to distinguish the original and the added pigments. Owing to its dimensions, it has been impossible to analyze the Salerno Exultet directly under the microscope of our Micro- Raman spectrometer. We have therefore used optical fibers connected to a three axis micro-positioned measurement head mounted on a large metal frame. PIXE analysis was performed using the portable instrumentation set up by the INFN-LANDIS Laboratory, Catania, Italy. The combination of these two complementary techniques allowed us to reveal a palette formed by lapis-lazuli, cinnabar, verdigris, earths organic lakes and chalk.

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Marina Bicchieri, Michele Nardone, Giuseppe Pappalardo, Lighea Pappalardo, Francesco Paolo Romano, Pio Alfonso Russo, and Armida Sodo "Salerno Exultet: its characterization by Raman and PIXE-α analyses", Proc. SPIE 4402, Laser Techniques and Systems in Art Conservation, (22 October 2001); https://doi.org/10.1117/12.445666

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