Radiochronometry is an important tool for nuclear forensic analysis. Plutonium has a wide array of parent/progeny pairs that can be measured to provide multiple model ages for interpretation. Various methods have been developed to provide data within specified timescales, to varied precision and accuracy requirements. In contrast to uranium, no radiochronometry reference standards currently exist for these measurements and we rely on traceability to activity and isotopic certified materials. A test reference material was provided for a blind laboratory analysis. We present analysis of this material by current techniques to increase confidence to the suitability of this methodology for certification.

无线电测时法是核法证分析的重要工具。钚有大量的父/子对，可以测量这些对，以提供多个模型年龄进行解释。已经开发了各种方法来在指定的时间尺度内提供数据，以满足不同的精度和准确度要求。与铀相比，目前没有用于这些测量的放射测时参考标准，我们依赖于对活动和同位素认证材料的可追溯性。为盲人实验室分析提供了测试参考材料。我们通过当前技术对这种材料进行分析，以增加对该方法适用于认证的信心。