Examination of SAMEVAL: Software to calculate and evaluate sample sizes for national safeguards inspection in the Republic of Korea

IF 2.6 3区工程技术 Q1 NUCLEAR SCIENCE & TECHNOLOGY

Nuclear Engineering and Technology Pub Date : 2025-05-28 DOI:10.1016/j.net.2025.103718

Haneol Lee, Hyun Cheol Lee, Hana Seo, Jung Youn Choi, Hyun Ju Kim, Jinho Ryu

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引用次数: 0

Abstract

As the International Atomic Energy Agency (IAEA) implements the state level approach (SLA) as a safeguards approach, the role of a state system of accounting for and control (SSAC) becomes critically important. The Republic of Korea (ROK), as a member state under the SLA, is implementing an independent sampling plan to strengthen the technical capability of the SSAC. Regarding this sampling plan, this study proposes SAMEVAL: a GUI-based independent sample size calculation and evaluation software. The SAMEVAL software minimizes approximations in the IAEA's "common inspection on-site software package (CIOSP)". It can also evaluate the effectiveness of the calculated sample sizes for representative diversion scenarios: a novel capability not offered by CIOSP. This study then demonstrates the SAMEVAL software using 20 benchmark cases of an IAEA technical report (STR-261), and demonstrates the effectiveness of the calculated sample sizes using SAMEVAL for five diversion scenarios with different defect sizes. The effectiveness testing of SAMEVAL evaluates the non-detection probability (

β

) of the calculated sample sizes for a given diversion scenario based on the Monte Carlo calculation. It then compares the calculated

β

to the target non-detection probability (

β_{c}

) of each case. Our results indicate that SAMEVAL reduces inspection burden by reducing the total sample size or sample sizes with more precise verification methods while maintaining the same level of non-detection probability. With these capabilities, SAMEVAL can be a tool for the sampling plan in national safeguards inspection in the ROK to strengthen the technical capability of the SSAC.

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SAMEVAL的审查：用于计算和评估大韩民国国家保障检查样本大小的软件

随着国际原子能机构（IAEA）将国家层面的方法（SLA）作为一种保障方法来实施，国家会计与控制系统（SSAC）的作用变得至关重要。韩国作为SLA的成员国，正在实施一项独立的抽样计划，以加强SSAC的技术能力。针对该抽样方案，本研究提出了基于gui的独立样本量计算与评估软件SAMEVAL。SAMEVAL软件最大限度地减少了原子能机构“共同视察现场软件包（CIOSP）”中的近似。它还可以评估计算样本大小对代表性导流情景的有效性：这是CIOSP没有提供的一种新功能。然后，本研究使用原子能机构技术报告（STR-261）的20个基准案例演示了SAMEVAL软件，并演示了使用SAMEVAL计算的样本大小对具有不同缺陷尺寸的五种转移场景的有效性。SAMEVAL的有效性检验是基于蒙特卡罗计算对给定导流情景下计算的样本量的未检测概率（β）进行评价。然后将计算的β与每种情况下的目标未检测概率（βc）进行比较。我们的结果表明，SAMEVAL通过减少总样本量或更精确的验证方法的样本量来减少检查负担，同时保持相同的未检测概率水平。有了这些能力，SAMEVAL可以成为韩国国家保障监督中抽样计划的工具，以加强SSAC的技术能力。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Nuclear Engineering and Technology 工程技术-核科学技术

CiteScore

4.80

自引率

7.40%

发文量

431

审稿时长

3.5 months

期刊介绍： Nuclear Engineering and Technology (NET), an international journal of the Korean Nuclear Society (KNS), publishes peer-reviewed papers on original research, ideas and developments in all areas of the field of nuclear science and technology. NET bimonthly publishes original articles, reviews, and technical notes. The journal is listed in the Science Citation Index Expanded (SCIE) of Thomson Reuters. NET covers all fields for peaceful utilization of nuclear energy and radiation as follows: 1) Reactor Physics 2) Thermal Hydraulics 3) Nuclear Safety 4) Nuclear I&C 5) Nuclear Physics, Fusion, and Laser Technology 6) Nuclear Fuel Cycle and Radioactive Waste Management 7) Nuclear Fuel and Reactor Materials 8) Radiation Application 9) Radiation Protection 10) Nuclear Structural Analysis and Plant Management & Maintenance 11) Nuclear Policy, Economics, and Human Resource Development