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首页> 外文会议>INMM annual meeting >Safeguards Options for Natural Uranium Conversion Facilities— A Collaborative Effort between the U.S. Department of Energy and the National Nuclear Energy Commission of Brazil
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Safeguards Options for Natural Uranium Conversion Facilities— A Collaborative Effort between the U.S. Department of Energy and the National Nuclear Energy Commission of Brazil

机译：天然铀转化设施的保障方案-美国能源部和巴西国家核能委员会之间的共同努力

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In 2005, the National Nuclear Energy Commission of Brazil (CNEN) and the U.S. Department of Energy (DOE) agreed on a collaborative effort to evaluate measures that can strengthen the effectiveness of international safeguards at a natural uranium conversion plant (NUCP). The work was performed by DOE’s Oak Ridge National Laboratory and CNEN. A generic model of an NUCP was developed and typical processing steps were defined. The study, completed in early 2007, identified potential safeguards measures and evaluated their effectiveness and impacts on operations. In addition, advanced instrumentation and techniques for verification purposes were identified and investigated. The scope of the work was framed by the International Atomic Energy Agency’s (IAEA’s) 2003 revised policy concerning the starting point of safeguards at uranium conversion facilities. Before this policy, only the final products of the uranium conversion plant were considered to be of composition and purity suitable for use in the nuclear fuel cycle and, therefore, subject to AEA safeguards control. DOE and CNEN have explored options for implementing the IAEA policy, although Brazil understands that the new policy established by the IAEA is beyond the framework of the Quadripartite Agreement of which it is one of the parties, together with Argentina, the Brazilian-Argentine Agency for Accounting and Control of Nuclear Materials, and the IAEA. This paper highlights the findings of this joint collaborative effort and identifies technical measures to strengthen international safeguards in NUCPs.
机译：2005年，巴西国家核能委员会（CNEN）和美国能源部（DOE）达成了一项共同努力，以评估可以增强天然铀转化厂（NUCP）的国际保障措施有效性的措施。这项工作是由美国能源部的橡树岭国家实验室和CNEN进行的。开发了NUCP的通用模型，并定义了典型的处理步骤。该研究于2007年初完成，确定了潜在的保障措施，并评估了其有效性和对运营的影响。此外，鉴定和研究了用于验证目的的先进仪器和技术。国际原子能机构（IAEA）2003年修订的政策规定了这项工作的范围，该政策涉及铀转化设施保障的起点。在执行该政策之前，只有铀转化工厂的最终产品被认为具有适合用于核燃料循环的成分和纯度，因此必须受到AEA保障措施的控制。 DOE和CNEN已经探索了实施IAEA政策的方案，尽管巴西了解到IAEA制定的新政策超出了四方协定的框架，而四方协定是它的当事方之一，而巴西，阿根廷和阿根廷则是阿根廷的原子能机构。核材料的核算和控制，以及国际原子能机构。本文重点介绍了这项联合合作成果，并确定了加强NUCP中国际保障措施的技术措施。

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