Abstract

The internal layer structure of multilayered oil paintings, where several layers of paint have been observed in peeled areas, has been investigated by THz time-domain imaging. The results show that the painting consists of different layers of paintings and that the thickness of each layer is almost constant over the entire area. By extracting only the signal from the position of the internal interface, where the reflected waves are particularly large, a woman’s image that differed from the surface landscape painting appeared. An attempt was made to reconstruct the woman’s portrait using X-ray fluorescence. Although the distribution of elements did not give a direct match with the figure, the element map suggested the presence of another landscape painting between the surface and the woman’s image. The comparison of the results of the THz time-domain imaging and X-ray fluorescence elemental mapping techniques, in addition to photographic surveys, makes it possible to reconstruct all the individual layers by following the chronological sequence in which the work was painted.

中文翻译：

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通过太赫兹时域成像和 X 射线荧光元素测绘对单块画布上的多层绘画进行无损观察

摘要

通过太赫兹时域成像研究了多层油画的内层结构，在剥离区域观察到了多层油漆。结果表明，这幅画由不同的画层组成，并且每层的厚度在整个区域几乎是恒定的。仅提取内部界面位置反射波特别大的信号，就出现了与表面山水画不同的女性形象。人们尝试使用 X 射线荧光重建该女子的肖像。尽管元素分布与人物形象没有直接匹配，但元素图表明在表面和女人形象之间存在另一幅山水画。除了摄影测量之外，太赫兹时域成像和 X 射线荧光元素测绘技术结果的比较，使得可以按照作品绘制的时间顺序重建所有单独的图层。