Advances in accelerator mass spectrometry have resulted in an unprecedented amount of new high-precision radiocarbon (14C) -dates, some of which will redefine the international 14C calibration curves (IntCal and SHCal). Often these datasets are unaccompanied by detailed quality insurances in place at the laboratory, questioning whether the 14C structure is real, a result of a laboratory variation or measurement-scatter. A handful of intercomparison studies attempt to elucidate laboratory offsets but may fail to identify measurement-scatter and are often financially constrained. Here we introduce a protocol, called Quality Dating, implemented at ETH-Zürich to ensure reproducible and accurate high-precision 14C-dates. The protocol highlights the importance of the continuous measurements and evaluation of blanks, standards, references and replicates. This protocol is tested on an absolutely dated German Late Glacial tree-ring chronology, part of which is intercompared with the Curt Engelhorn-Center for Archaeometry, Mannheim, Germany (CEZA). The combined dataset contains 170 highly resolved, highly precise 14C-dates that supplement three decadal dates spanning 280 cal. years in IntCal, and provides detailed 14C structure for this interval.

中文翻译：

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质量约会：在 ETH 实施的定义明确的协议，用于在晚期冰川木材上测试的高精度 14C-日期

加速器质谱技术的进步导致了前所未有数量的新型高精度放射性碳（14C) - 日期，其中一些将重新定义国际14C 校准曲线（IntCal 和 SHCal）。这些数据集通常没有在实验室提供详细的质量保险，因此质疑这些数据集是否14C 结构是真实的，是实验室变化或测量分散的结果。少数比对研究试图阐明实验室偏移，但可能无法识别测量分散，并且经常受到财务限制。在这里，我们介绍了一个名为 Quality Dating 的协议，该协议在 ETH-Zürich 实施，以确保可重复和准确的高精度14C-日期。该协议强调了对空白、标准、参考和复制品进行连续测量和评估的重要性。该协议在绝对过时的德国晚冰期树木年轮年表上进行了测试，其中一部分与德国曼海姆的 Curt Engelhorn 考古中心 (CEZA) 进行了比较。合并后的数据集包含 170 个高分辨率、高精度14补充三个跨越 280 cal 的年代际日期的 C 日期。IntCal 年，并提供详细的14此区间的 C 结构。