In-situ non-destructive analysis of Etruscan gold jewels with the micro-XRF transportable spectrometer from CNA
In-situ non-destructive analysis of Etruscan gold jewels with the micro-XRF transportable spectrometer from CNA
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DOI：
10.1016/j.jasrep.2017.09.032
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发表时间：
2017-12
期刊：
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通讯作者：
S. Scrivano;C. Ruberto;B. Gómez-Tubío;A. Mazzinghi;I. Ortega-Feliu;F. Ager;K. Laclavetine;L. Giuntini;M. A. Respaldiza
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文献类型：
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作者：
S. Scrivano;C. Ruberto;B. Gómez-Tubío;A. Mazzinghi;I. Ortega-Feliu;F. Ager;K. Laclavetine;L. Giuntini;M. A. Respaldiza
研究珍贵的文化遗产往往需要具有良好灵敏度的非破坏性分析。此外，它往往是必要的措施进行原位，特别是当运输的项目从机构到实验室是不允许的。在这项工作中，提出的技术规格的微型XRF光谱仪在塞维利亚的CNA开发和其分析能力进行了测试，通过分析一套伊特鲁里亚黄金珠宝的国家考古博物馆的佛罗伦萨。由于这些珠宝的特点是精心装饰，典型尺寸的细节低至数十微米，因此需要高横向分辨率来研究这些物体的特征。挑战在于焊接/钎焊区域的表征以及呈现非常复杂几何形状的珠宝的细节。本文展示了15个伊特鲁里亚黄金珠宝（从公元前七世纪）的显微X射线荧光原位分析，以表征片，线，金银丝，颗粒，以及连接区的合金成分。根据这些结果，可以描述伊特鲁里亚金匠的制造技术和生产过程。
The study of valuable Cultural Heritage objects frequently requires non-destructive analysis with good sensitivity. Moreover, it is often necessary that the measures are carried outin-situ, in particular when transport of the items from the institutions to the laboratory is not allowed.In this work, the technical specifications of the micro-XRF spectrometer developed at the CNA in Seville is presented and its analytical capabilities are tested by means of the analysis of a set of Etruscan gold jewels of the National Archaeological Museum of Florence. Since these jewels are characterized by elaborate decorations, with details of typical dimensions down to tens of microns, a high lateral resolution is required to study the features of these objects. The challenge consists in the characterization of the welding/soldering zones and the details of the jewels that present a very complex geometry. This paper shows the micro-XRF in-situ analysis of 15 Etruscan gold jewels (from the VII century BCE) in order to characterize the alloy composition of sheets, threads, filigrees, granules, as well as the joining zones. Based on these results, the manufacture technique and the production process employed by the Etruscan goldsmiths could be described.