On the Origins and Significance of the Limit Demarcating Low-Enriched Uranium from Highly Enriched Uranium

Andrew Brown; Alexander Glaser

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On the Origins and Significance of the Limit Demarcating Low-Enriched Uranium from Highly Enriched Uranium

机译：从高浓铀中划定低浓铀界限的起源及意义

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The International Atomic Energy Agency (IAEA) defines uranium with a ~(235)U isotope concentration of 20 percent as the threshold between low-enriched uranium (LEU) and highly enriched uranium (HEU), and as a significant waypoint on the path towards weapon-grade uranium (typically above 90 percent ~(235)U enrichment). The distinction between LEU and HEU is widely used in shaping nonproliferation policy, and it has featured prominently in commentary over Iran's nuclear program and the series of Nuclear Security Summits that since 2010 have sought to minimize civilian stockpiles and use of HEU. Yet the origin of this threshold is obscure, dating back 6 decades. This research note traces the political origin and the technical basis for this limit.

机译：国际原子能机构（IAEA）将〜（235）U同位素浓度定为20％的铀定义为低浓铀（LEU）和高浓铀（HEU）之间的阈值，并且是通往铀的重要途径武器级铀（通常浓缩度超过90％〜（235）U）。低浓铀和高浓铀之间的区别被广泛用于制定防扩散政策，并且在有关伊朗核计划和自2010年以来力求尽量减少平民库存和高浓铀使用的一系列核安全峰会的评论中突出体现这一点。然而，这个门槛的起源是模糊的，可以追溯到六十年前。本研究笔记追溯了这一限制的政治渊源和技术基础。

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《Science & global security》 |2016年第3期|131-137|共7页
作者
Andrew Brown; Alexander Glaser;
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作者单位

Department of Radiation Oncology, Duke University Medical Center, Durham, NC, USA;

Program on Science and Global Security, Princeton University, Princeton, NJ, USA;

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1. Evaluation of a uranium zirconium hydride fuel rod option for conversion of the MIT research reactor (MITR) from highly-enriched uranium to low-enriched uranium [J] . Dunn F. E., Wilson E. H., Feldman E. E., Nuclear Engineering and Design . 2017,第Juna期

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2. Startup Test Plan and Predictions for Highly Enriched Uranium to Low-Enriched Uranium Fuel Conversion at the University of Missouri Research Reactor [J] . Wilson Cowherd, John Stillman, Leslie Foyto, Nuclear Technology . 2021,第10期

机译：在密苏里州大学研究反应堆中对高富集铀的启动测试计划和预测，在密苏里大学的铀燃料转换
3. Trade-Offs Between Space Nuclear Systems Fueled with Highly Enriched Uranium and Low-Enriched Uranium [J] . Bhavya Lai, Jericho Locket Nuclear Technology . 2021,第6期

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4. A Year in the Life of a Nuclear Storage Facility De-Inventory: How Y-12 National Security Complex Successfully Relocated the Inventory of Enriched Uranium Not Qualified for the Highly Enriched Uranium Materials Facility [C] . Jeniece May INMM annual meeting . 2010

机译：核储存设施去库存的一年时间：Y-12国家安全中心如何成功地重新分配了不符合高度浓缩铀材料设施条件的浓缩铀库存
5. Development of Nitride Coating Using Atomic Layer Deposition for Low-Enriched Uranium Fuel Powder [D] . Bhattacharya, Sumit. 2017

机译：低浓铀燃料粉末原子层沉积氮化涂层的研制
6. Author Correction: Active neutron and gamma-ray imaging of highly enriched uranium for treaty verification [O] . Michael C. Hamel, J. Kyle Polack, Marc L. Ruch, -1

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7. Evaluation of a uranium zirconium hydride fuel rod option for conversion of the MIT research reactor (MITR) from highly-enriched uranium to low-enriched uranium [O] . F.E. Dunn, E.H. Wilson, E.E. Feldman, 2017

机译：评价硫锆硫化物燃料棒选择，将MIT研究反应器（MIT）转化为高富富富铀硫酸至低富集的铀
8. Accident Analyses for Conversion of the University of Missouri Research Reactor (MURR) from Highly-Enriched to Low-Enriched Uranium. [R] . Stillman, J. A., Feldman, E. E., Wilson, E. H., 2014

机译：密苏里大学研究堆（mURR）从高浓缩铀转化为低浓铀的事故分析。

On the Origins and Significance of the Limit Demarcating Low-Enriched Uranium from Highly Enriched Uranium

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