Beyond EPZs: nuclear emergency management frameworks when using site boundary emergency planning zones, with a case study on high temperature gas reactors

IF 2.3 3区工程技术 Q1 NUCLEAR SCIENCE & TECHNOLOGY

Annals of Nuclear Energy Pub Date : 2025-08-16 DOI:10.1016/j.anucene.2025.111808

Luke Lebel, Feng Zhou , David Hummel

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引用次数: 0

Abstract

Adapting emergency management programs to the risk profile of small modular reactors, while ensuring that they still meet necessary defence in depth safety objectives, is a key pillar in the responsible deployment of the technologies. Predicated on the assumption that urgent protective actions would not be required even following a bounding emergency, a site boundary EPZ approach allows for a measurement-driven framework for implementing protective actions. It is a reactive approach that uses dose measurements and operational intervention levels (OILs) to trigger the early (non-urgent) protective actions aimed at averting doses over the longer term, and confirm assumptions about urgent protective actions. A case study based on a high temperature gas reactor (HTGR) safety analysis is performed to show the potential source term and off-site consequences, develop HTGR-specific OILs, and show how different non-urgent protective actions can be triggered with measurements exceeding OIL values.

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超越出口加工区：使用场址边界应急规划区时的核应急管理框架，包括高温气体反应堆的案例研究

使应急管理方案适应小型模块化反应堆的风险状况，同时确保它们仍然满足必要的纵深防御安全目标，是负责任地部署这些技术的关键支柱。基于即使在边界紧急情况发生后也不需要采取紧急保护行动的假设，场地边界EPZ方法允许采用测量驱动的框架来实施保护行动。这是一种反应性方法，使用剂量测量和操作干预水平（油）来触发旨在避免长期剂量的早期（非紧急）保护行动，并确认关于紧急保护行动的假设。基于高温气体反应器（HTGR）安全性分析的案例研究，展示了潜在的源期和非现场后果，开发了HTGR专用油，并展示了如何在测量值超过OIL值时触发不同的非紧急保护措施。

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

Annals of Nuclear Energy 工程技术-核科学技术

CiteScore

4.30

自引率

21.10%

发文量

632

审稿时长

7.3 months

期刊介绍： Annals of Nuclear Energy provides an international medium for the communication of original research, ideas and developments in all areas of the field of nuclear energy science and technology. Its scope embraces nuclear fuel reserves, fuel cycles and cost, materials, processing, system and component technology (fission only), design and optimization, direct conversion of nuclear energy sources, environmental control, reactor physics, heat transfer and fluid dynamics, structural analysis, fuel management, future developments, nuclear fuel and safety, nuclear aerosol, neutron physics, computer technology (both software and hardware), risk assessment, radioactive waste disposal and reactor thermal hydraulics. Papers submitted to Annals need to demonstrate a clear link to nuclear power generation/nuclear engineering. Papers which deal with pure nuclear physics, pure health physics, imaging, or attenuation and shielding properties of concretes and various geological materials are not within the scope of the journal. Also, papers that deal with policy or economics are not within the scope of the journal.