Precious ornaments from the Museum Royal Tombs of Sipán were analyzed by X-ray computed microtomography (microCT). The ornaments analyzed were golden earrings produced by the Moche culture that flourished along the north coast of present-day Peru between approximately 100 and 600 AD. Sipán, also known as Huava Rajada, is a mochica archaeological complex in the north of Peru. In particular, the spectacular jewelry, mainly composed of gold, silver, and copper alloys, gilded copper, and tumbaga, from the Museum “Royal Tombs of Sipán,” in Lambayeque, north of Peru, are some of the most sophisticated metalworking ever produced of pre-Columbian America. A portable microCT system consisting of a high-resolution flat panel detector and a mini X-ray tube were used for the structural analysis of these ornaments. The microCT images show parts of the internal structure, highlighting the manufacturing technique and gold sheets joining techniques of the Moche artisans. Furthermore, the advantage of using the portable microCT system for nondestructive testing is clear when the sample cannot be taken to the laboratory.

中文翻译：

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用于“西潘皇家陵墓”博物馆珠宝结构分析的 X 射线计算机显微断层扫描

博物馆皇家陵墓的珍贵饰品西潘通过 X 射线计算机显微断层扫描 (microCT) 进行分析。所分析的饰物是由公元 100 至 600 年间在现今秘鲁北部海岸盛行的莫切文化生产的金耳环。西潘，也称为华瓦·拉贾达, 是一个摩奇卡秘鲁北部的考古综合体。特别值得一提的是，以金、银、铜合金、镀金铜和通巴加为主要材料的珠宝，出自“王家陵墓”博物馆。西潘，”在秘鲁北部的兰巴耶克，是前哥伦布时期美国生产的一些最复杂的金属加工。由高分辨率平板探测器和迷你 X 射线管组成的便携式 microCT 系统用于对这些装饰品进行结构分析。显微 CT 图像显示了部分内部结构，突出了 Moche 工匠的制造技术和金片接合技术。此外，当无法将样品带到实验室时，使用便携式 microCT 系统进行无损检测的优势显而易见。