Multianalytical Study of a Painting on Copper
Author:
Iannaccone Roberta1ORCID, Ponzeletti Alessandro2, Bartolozzi Giovanni3ORCID, Malfatti Luca4ORCID, Brunetti Antonio4
Affiliation:
1. Dipartimento di Scienze Chimiche, Fisiche, Matematiche e Naturali, Università degli Studi di Sassari, Via Vienna 2, 07100 Sassari, Italy 2. Dipartimento Arti Visive, Accademia delle Belle Arti di Sassari, Via Duca degli Abruzzi 4, 07100 Sassari, Italy 3. Istituto di Fisica Applicata Nello Carrara, Via Madonna del Piano 10, 50019 Sesto Fiorentino, Italy 4. Dipartimento di Scienze Biomediche, Università degli Studi di Sassari, Viale San Pietro, 07100 Sassari, Italy
Abstract
The painting studied, featuring the Virgin contemplating the sleeping Child, is a well-known composition in the religious context, especially popular since the 16th century. The technique, oil on copper plate, and materials were examined applying a multimethodological non-invasive approach. The main goal was to quantitatively characterize the layer composition and thickness. To obtain them, X-ray fluorescence spectroscopy coupled with Monte Carlo simulation was used for the first time, to the best of our knowledge, for this kind of object. This technique was also integrated with more conventional photographic and spectroscopic techniques such as multiband imaging (MBI), Raman spectroscopy, external reflection Fourier transform infrared spectroscopy (ER FT-IR), and optical microscopy. The obtained data showed the use of a background based on lead white, a wide palette, which includes azurite, vermilion, lead white, and some ochers, and documented the conservation status. Although the investigations contended with the object’s complexity, the results demonstrate the efficacy of the XRF–Monte Carlo simulation approach in characterizing the materials constituting the artwork in a totally non-invasive way.
Subject
Materials Science (miscellaneous),Archeology,Conservation
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