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14C INTERCOMPARISON EXERCISE ON BONES AND IVORY SAMPLES: IMPLICATIONS FOR FORENSICS
Radiocarbon ( IF 8.3 ) Pub Date : 2021-03-30 , DOI: 10.1017/rdc.2020.142
G Quarta , M Molnár , I Hajdas , L Calcagnile , I Major , A J T Jull

The application of accelerator mass spectrometry radiocarbon (AMS 14C) dating in forensics is made possible by the use of the large excursion of the 14C concentration in the post-WWII terrestrial atmosphere due to nuclear testing as a reference curve for data calibration. By this approach high-precision analyses are possible on samples younger than ∼70 years. Nevertheless, the routine, widespread application of the method in the practice of forensics still appears to be limited by different issues due to possible complex interpretation of the results. We present the results of an intercomparison exercise carried out in the framework of an International Atomic Energy Agency (IAEA) CRP-Coordinated Research Project between three AMS laboratories in Italy, Hungary, and Switzerland. Bone and ivory samples were selected with ages spanning from background (>50 ka) to 2018. The results obtained allow us to assess the high degree of reproducibility of the results and the remarkable consistency of the experimental determinations.

中文翻译:

14C 骨头和象牙样品的比对练习:对法医学的意义

加速器质谱放射性碳(AMS)的应用14C) 取证中的约会是通过使用大范围的14二战后由于核试验导致的陆地大气中的 C 浓度作为数据校准的参考曲线。通过这种方法,可以对年龄小于 70 岁的样品进行高精度分析。然而,由于对结果的可能复杂解释,该方法在法医实践中的常规、广泛应用似乎仍然受到不同问题的限制。我们展示了在意大利、匈牙利和瑞士的三个 AMS 实验室之间在国际原子能机构 (IAEA) CRP 协调研究项目的框架内进行的比对活动的结果。骨头和象牙样品的年龄范围从背景(> 50 ka)到 2018 年。
更新日期:2021-03-30
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