LIBS as a diagnostic tool during the laser cleaning of copper based alloys: experimental results
LIBS as a diagnostic tool during the laser cleaning of copper based alloys: experimental results
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DOI：
10.1039/b315488b
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发表时间：
2004-04
影响因子：
3.4
通讯作者：
F. Colao;R. Fantoni;V. Lazic;L. Caneve;A. Giardini;V. Spizzichino
中科院分区：
文献类型：
--
作者：
F. Colao;R. Fantoni;V. Lazic;L. Caneve;A. Giardini;V. Spizzichino
尽管在铜基合金的定量LIBS分析中存在困难，但该技术的侵入性非常低，强烈支持将其用于文化遗产材料，包括古代青铜器。在此对一组古罗马硬币进行了校准曲线和无校准模型的分析比较。本文介绍了一种在清洗过程中对激光烧蚀铜钱和人工时效标准件的过程进行监测的尝试。双脉冲技术表明，LIBS分析结果可以受益于分别用于清洁（266 nm）和LIBS分析（335 nm）的UV激光源之间的同步。
In spite of difficulties in quantitative LIBS analysis on copper based alloys, the very low invasiveness of the technique strongly sustains attempts to use it with cultural heritage materials, including ancient bronzes. Analytical results obtained with calibration curves and a calibration free model are compared here on a set of ancient roman coins. An attempt is presented to monitor the laser ablation process on bronze coins and artificially aged standards during the cleaning. The double pulse technique showed that LIBS analytical results could benefit from synchronization between the UV laser sources used, respectively, for cleaning (266 nm) and for LIBS analysis (335 nm).