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首页> 外文期刊>Strategic analysis >Re-categorisation of High-Enriched Uranium and Plutonium for Safeguards Verification: Is It Necessary? What are the Other Options?
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Re-categorisation of High-Enriched Uranium and Plutonium for Safeguards Verification: Is It Necessary? What are the Other Options?

机译：重新分类高富富富铀和钚，用于保障核查：是否有必要？什么是其他选择？

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摘要

The desirability and necessity of having a relook into the re-categorization of International Atomic Energy Agency (IAEA) defined High-Enriched Uranium (HEU) and Plutonium (Pu) by focussing on the relevance of strategic value/isotopic composition of the materials for re-categorization, for example, creating an intermediate category between the existing Low Enriched Uranium (LEU) and weapons-grade uranium (U-235 ＞ 90 per cent) and re-categorizing plutonium into Weapons-Grade Plutonium (WGPU) and Reactor-Grade Plutonium (RGPU), specifying the content of Pu-240 in each case, had been suggested by various specialists. According to them, this re-categorization facilitates flexible IAEA inspection goals, does not compromise on safeguards efficacy and at the same time could result in reduced inspection efforts and costs. An assessment has been made from the available literature and it is possible to conclude that (ⅰ) only a relatively small enrichment effort is needed to enrich uranium with 20 per cent U-235 to weapons-grade uranium and (ⅱ) non-weapons-grade plutonium can also be used in nuclear weapons. This article therefore argues that there is no need to change the existing IAEA categorization of HEU and Pu, and the current IAEA practices should continue for a more meaningful safeguards implementation. In addition, it is argued that technological advancements in safeguards verification, and pragmatic adaptation of integrated safeguards, state-level approach may bring about flexibility in safeguards approach. Further, it is suggested that with a large safeguards verification database at its disposal, the IAEA may take a decision on revising the value of Significant Quantity (SQ) without changing other criteria.
机译：通过侧重于对RE的战略价值/同位素组成的相关性来重新分类国际原子能机构（IAEA）定义高富富富富铀（HUU）和钚（PU）的可取性和必要性 - 例如，在现有的低富集铀（Leu）和武器级铀（U-235> 90％之间的中间类别，并将钚重新分类为武器级钚（WGPU）和反应堆等级各种专家提出了在每种情况下指定PU-240含量的钚（RGPU）。根据他们，这种重新分类促进了灵活的IAEA检查目标，并不妥协在保障措施的疗效上，同时可能导致检验工作减少和成本。从可用文献中取得了评估，可以得出结论（Ⅰ）只需要相对较小的富集努力，以富含20％的U-235到武器级铀和（Ⅱ）非武器 - 等级钚也可用于核武器。因此，本文认为，没有必要改变何胡和普的现有国际原子能机构分类，目前的原子能机构实践应继续更加有意义的保障实施。此外，有人认为，维护核查的技术进步，以及综合保障的务实适应，国家级方法可以带来保障措施的灵活性。此外，有人建议，在其处置的大型保障核查数据库中，IAEA可能会决定修改大量（SQ）的价值而不改变其他标准。

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  • 来源
    《Strategic analysis》 |2020年第4期|346-359|共14页
  • 作者

    K.L. Ramakumar;

  • 作者单位

    Nuclear Controls & Planning Wing in the Department of Atomic Energy at Mumbai;

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  • 正文语种 eng
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