Models and key points of review for airborne radioactive source terms in Nuclear Power Plants

LIU Yuanyuan; ZHENG Peng; YANG Yang; ZHANG Qiong; ZHANG Chunming

doi:10.11889/j.0253-3219.2013.hjs.36.120606

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Models and key points of review for airborne radioactive source terms in Nuclear Power Plants

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- Models and key points of review for airborne radioactive source terms in Nuclear Power Plants
- NUCLEAR TECHNIQUES Vol. 36, Issue 12, Article number: 120606(2013)
- 作者机构：
  
  环境保护部核与辐射安全中心
- 作者简介：
- 基金信息：
  
  国家科技重大专项课题(2011ZX06002-010、2013ZX06002001)资助
- DOI：10.11889/j.0253-3219.2013.hjs.36.120606
  CLC： TM623
- Published：01 December 2013
- 稿件说明：
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[1]刘圆圆,郑鹏,杨阳,张琼,张春明.核电厂气载放射性物质源模型及审核关键点[J].核技术,2013,36(12):69-73.

LIU Yuanyuan, ZHENG Peng, YANG Yang, et al. Models and key points of review for airborne radioactive source terms in Nuclear Power Plants[J]. Nuclear techniques, 2013, 36(12): 120606
[1]刘圆圆,郑鹏,杨阳,张琼,张春明.核电厂气载放射性物质源模型及审核关键点[J].核技术,2013,36(12):69-73. DOI： 10.11889/j.0253-3219.2013.hjs.36.120606.

LIU Yuanyuan, ZHENG Peng, YANG Yang, et al. Models and key points of review for airborne radioactive source terms in Nuclear Power Plants[J]. Nuclear techniques, 2013, 36(12): 120606 DOI： 10.11889/j.0253-3219.2013.hjs.36.120606.

摘要

气载放射性物质源模型是核电厂安全审评中的关键点之一。但是

目前大多数安全分析报告中

针对气载放射性物质源模型均采用了一种通用的简化模型进行假设

而这种简化模型无法适用于所有类别的气载放射性物质源。本文根据物理机制详细地推导出核电厂安全壳、燃料贮存厂房和辅助厂房中三大类气载放射性物质源的计算模型

并分别给出了审核计算这三类模型的关键点。

Abstract

Background: The calculation model of airborne radioactive source term in Nuclear Power Plants is one of the key points of safety review. However

in most safety analysis reports

a general simplified model of airborne radioactive source terms has been used

which is not applicable for all cases. Purpose: The aim is to complete the review calculations quickly and accurately. Methods: The model was based on the physical diffusion mechanism of radionuclides and their diffusion behavior in different spaces. Results: We proposed three models which could be respectively used for airborne radioactive source terms in reactor building

fuel element building and auxiliary building. Meanwhile

the key points in review of airborne radioactive source terms were put forward. Conclusion: Three models were proposed and their corresponding review key points will play a significant role in review calculations.

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李文建

赵彦森

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Institute of Modern Physics, Academia Sinica

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