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首页> 外文期刊>Spectrochimica Acta, Part B. Atomic Spectroscopy >Applications of laser-induced breakdown spectroscopy for cultural heritage: A comparison with X-ray Fluorescence and Particle Induced X-ray Emission techniques
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Applications of laser-induced breakdown spectroscopy for cultural heritage: A comparison with X-ray Fluorescence and Particle Induced X-ray Emission techniques

机译：激光诱导击穿光谱对文化遗产的应用：与X射线荧光和粒子诱导X射线发射技术的比较

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摘要

With the aim to establish advantages and limitations of techniques commonly employed for material characterization of Cultural Heritage objects, we performed comparative measurements by LIBS, X-ray Fluorescence (XRF) and Particle Induced X-ray Emission (PIXE) on four typologies of materials. The samples include: 1) egg tempera pigments on gypsum ground; 2) oil paints on gypsum ground with light or dark imprimitura; 3) fragments of decorated glazed ceramic, and 4) ancient Roman coins. The optimal choice of an analytical instrument depends also on the sample type, its dimensions and transportability, and for these reasons our measurements involved two types of instruments per technique. The LIBS probing was done by a table-top instrument (on coins and ceramics) and by a stand-off system at distance of 9.5 m (on pigments). The XRF measurements involved a laboratory micro-XRF system (on coins) and a portable instrument (on pigments and ceramics). The PIXE analyses were obtained by TOP-IMPLART accelerator at ENEA Frascati, using a low energy line that produces the proton beam with adjustable energy between 3 and 7 MeV (used for the pigments and ceramics), and by INFN-LABEC system with proton energy of 3 MeV and complemented by Elastic Backscattering Spectrometry (EBS), for coin samples. Results relevant to quantitative analysis of major sample constituents, identification of trace components, and stratigraphy are reported and discussed for the examined typologies of samples.
机译：旨在建立普遍用于文化遗产物体的材料表征的技术的优缺点，我们通过LIB，X射线荧光（XRF）和颗粒诱导的X射线发射（PIME）对材料的四种类型进行了比较测量。样品包括：1）石膏地面上的蛋温度颜料; 2）油漆在石膏地面上有光或黑暗的Imprimitura; 3）装饰玻璃陶瓷的碎片，4）古罗马硬币。分析仪器的最佳选择也取决于样品类型，其尺寸和可运输性，并且由于这些原因，我们的测量涉及每个技术的两种类型的仪器。 LIBS探测由台式仪器（在硬币和陶瓷上），并在9.5米（颜料）距离的脱扣系统进行。 XRF测量涉及实验室微XRF系统（在硬币上）和便携式仪器（颜料和陶瓷）。通过在ENEA FRASCATI的顶部植入加速器获得PIXE分析，使用低能量线，该低能量线产生具有可调节能量的质子梁（用于颜料和陶瓷），以及具有质子能量的infn-labec系统3 MeV并通过弹性反向散射光谱（EBS）互补，用于硬币样品。报告了与主要样品成分的定量分析，鉴定痕量组分和地层相关的结果，并讨论了样本的检测类型。

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