The complex geographical scenario of Mexico allowed the cultural diversification and development of multiple cultures such as Tolteca, Teotihuacan, Mexica, and Maya, among others. Despite this rich cultural heritage, radiometric dating of Mexican cultural samples with radiocarbon (14C) began only in the 1980s and with accelerator mass spectrometry (AMS) in 2013. Analysis of 14C with AMS is the most widely used technique to date archaeological objects and cultural heritage. Since 2013, the Accelerator Mass Spectrometry Laboratory (LEMA) facility of the Institute of Physics at UNAM (IF-UNAM) has supported archaeological research in Mexico, but also investigation in other areas such as geology, physics, chemistry, and environmental sciences through the analysis of 14C, 10Be, 26Al, 129I, and Pu. The absolute dating with 14C continues to be the core of LEMA’s work, where different geographical scenarios of the country and climatic conditions present very diverse analytical challenges. This work presents a basic description of the AMS system of the LEMA laboratory and describes some applications that are currently being developed.

中文翻译：

---

墨西哥和前哥伦比亚考古学中的 14C-AMS

墨西哥复杂的地理环境允许文化多样化和多种文化的发展，如托尔特卡、特奥蒂瓦坎、墨西卡和玛雅等。尽管有丰富的文化遗产，墨西哥文化样品的放射性碳测年（14C) 仅在 1980 年代开始，并在 2013 年开始使用加速器质谱 (AMS)。14C 与 AMS 是使用最广泛的技术来确定考古对象和文化遗产的年代。自 2013 年以来，墨西哥国立自治大学物理研究所 (IF-UNAM) 的加速器质谱实验室 (LEMA) 设施一直支持墨西哥的考古研究，同时也支持地质、物理、化学和环境科学等其他领域的调查。分析14C，10是，26铝，129我和浦。绝对约会14C 仍然是 LEMA 工作的核心，该国不同的地理情景和气候条件提出了非常多样化的分析挑战。这项工作对 LEMA 实验室的 AMS 系统进行了基本描述，并描述了当前正在开发的一些应用程序。