Abstract Several nuclear archaeology techniques have been proposed to determine historic plutonium production in dedicated nuclear reactors. These methods rely on sampling materials from the reactor core, or specially designed monitor tags, to examine suited isotopic ratios and deduce the amount of plutonium produced. However, some production reactors are capable of producing isotopes other than plutonium, such as tritium. If a reactor was declared to produce tritium, it would be crucial to confirm that it was in fact producing tritium, and not plutonium. In this paper, we describe how isotopic ratios discrepancies could be used to distinguish between plutonium and tritium production modes. We present results obtained from the simulation of reactor lattices inspired by Savannah River Site heavy-water production reactors and show that elements such as hafnium and tungsten can detect undeclared production of plutonium.

中文翻译：

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用于区分重水反应堆中钚和氚生产模式的核考古学

摘要 已经提出了几种核考古学技术来确定专用核反应堆中历史上的钚生产。这些方法依赖于从反应堆堆芯取样材料或专门设计的监测标签，以检查合适的同位素比率并推断产生的钚量。然而，一些生产反应堆能够生产钚以外的同位素，例如氚。如果一个反应堆被宣布生产氚，那么确认它实际上生产的是氚而不是钚是至关重要的。在本文中，我们描述了如何使用同位素比率差异来区分钚和氚的生产模式。