Non‐invasive and in situ investigation of layers sequence in panel paintings by portable micro‐spatially offset Raman spectroscopy,Journal of Raman Spectroscopy

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Non‐invasive and in situ investigation of layers sequence in panel paintings by portable micro‐spatially offset Raman spectroscopy
Journal of Raman Spectroscopy ( IF 2.4 ) Pub Date : 2020-07-06 , DOI: 10.1002/jrs.5939
Alessandra Botteon _{1,

2} , Chiara Colombo ₁ , Marco Realini ₁ , Chiara Castiglioni ₂ , Anna Piccirillo ₃ , Pavel Matousek ₄ , Claudia Conti ₁

Affiliation

Nowadays, the research in conservation science is focused on developing advanced portable analytical techniques able to achieve subsurface data in situ and in a non‐invasive way. Micro‐spatially offset Raman spectroscopy (micro‐SORS) is an emerging analytical technique developed to address the need of non‐invasively retrieving the molecular composition of the subsurface compounds; however, so far, micro‐SORS studies of artworks have been carried out only with benchtop Raman microscopes, precluding the non‐invasive analysis of large objects and artworks in situ. Here, for the first time, portable micro‐SORS was used for non‐invasive and in situ investigation of art objects. The potential of portable micro‐SORS is demonstrated through the reconstruction of the layer sequences in selected areas of two 16th century panel paintings, providing unequivocal information about the preparation layer spread over the panels and the pigments used in the painted layers and supplying essential information on the artist's technique.

中文翻译：

便携式微空间偏移拉曼光谱仪无损和原位研究面板绘画中的层序列

如今，保护科学的研究集中在开发先进的便携式分析技术上，这些技术能够以非侵入方式就地获得地下数据。微空间偏移拉曼光谱法（micro-SORS）是一种新兴的分析技术，旨在满足非侵入式获取地下化合物分子组成的需求。但是，到目前为止，艺术品的micro-SORS研究仅使用台式拉曼显微镜进行，排除了对大型物体和艺术品的非侵入式分析。在这里，便携式micro-SORS首次用于非侵入性和原位对艺术品的调查。便携式micro-SORS的潜力通过重建两幅16世纪面板画的选定区域中的层序列而得以展示，它提供了关于铺展在面板上的准备层以及涂漆层中所用颜料的明确信息，并提供了有关艺术家的技术。

更新日期：2020-07-06

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