<sup>134</sup>Cs与<sup>137</sup>Cs放射性活度比在破损燃料组件定位的应用研究

朱琳; 刘光磊; 刘晶晶

doi:10.11889/j.0253-3219.2019.hjs.42.100602

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¹³⁴Cs与¹³⁷Cs放射性活度比在破损燃料组件定位的应用研究

核能科学与工程 | 更新时间：2024-10-25

- ¹³⁴Cs与¹³⁷Cs放射性活度比在破损燃料组件定位的应用研究
- Theoretical research on location of fuel assemblies failure using the activity ratio of¹³⁴Cs and ¹³⁷Cs
- 核技术 2019年42卷第10期
- 作者机构：
  
  1.国核示范电站有限责任公司威海 264300
  2.辽宁红沿河核电有限公司大连 116000
- 作者简介：
  
  朱琳，女，1990年出生，2017年于哈尔滨工程大学获硕士学位，研究领域为核电厂燃料管理
  刘光磊，E-mail:liuguanglei@snpdp.com
- 基金信息：
- DOI：10.11889/j.0253-3219.2019.hjs.42.100602
  中图分类号： TL352.2⁺7
- 收稿日期：2019-06-17，
  
  修回日期：2019-09-16，
  
  纸质出版日期：2019-10-13
- 稿件说明：
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朱琳,刘光磊,刘晶晶.¹³⁴Cs与¹³⁷Cs放射性活度比在破损燃料组件定位的应用研究[J].核技术,2019,42(10):77-81.

ZHU Lin,LIU Guanglei,LIU Jingjing.Theoretical research on location of fuel assemblies failure using the activity ratio of¹³⁴Cs and ¹³⁷Cs[J].NUCLEAR TECHNIQUES,2019,42(10):77-81.
朱琳,刘光磊,刘晶晶.¹³⁴Cs与¹³⁷Cs放射性活度比在破损燃料组件定位的应用研究[J].核技术,2019,42(10):77-81. DOI： 10.11889/j.0253-3219.2019.hjs.42.100602.

ZHU Lin,LIU Guanglei,LIU Jingjing.Theoretical research on location of fuel assemblies failure using the activity ratio of¹³⁴Cs and ¹³⁷Cs[J].NUCLEAR TECHNIQUES,2019,42(10):77-81. DOI： 10.11889/j.0253-3219.2019.hjs.42.100602.

摘要

对破损燃料组件快速准确的定位，不仅可以为堆芯紧急换料提供宝贵时间，同时也缩短了大修的关键路径。本文对燃料组件中

134

Cs与

137

Cs放射性活度比与燃耗的关系进行了研究，并通过ORIGEN软件对计算得到的理论模型进行修正。研究发现：

134

Cs与

137

Cs放射性活度比随燃耗的增加而增大，随燃料组件富集度的增大而减小；通过修正后的

134

Cs/

137

Cs活度比与燃耗的关系可以确定压水堆核电厂不同燃料富集度下破损燃料组件的燃耗，进而实现对破损燃料组件准确的定位。

Abstract

Background

It is very important to locate ruptured fuel assemblies rapidly and accurately not only for emergency core refueling

but also for shortening critical path of overhaul.

Purpose

This study aims at location of fuel assemblies failure using the activity ratio of

134

Cs and

137

Cs.

Methods

The relationship between the ratio of

134

Cs to

137

Cs activity and fuel consumption in the fuel assembly was theoretically calculated

and the theoretical model was modified by ORIGEN software.

Results & Conclusions

It is found that the activity ratio of

134

Cs to

137

Cs increases with the increase of the burn-up

and decreases with the increase of fuel assembly enrichment. With the improved

134

Cs to

137

Cs activity ratio and burn

up model

the burnup of damaged fuel assemblies at different enrichment levels in pressurized water reactor (PWR) nuclear power plants can be determined

and then the damaged fuel assemblies can be quickly located.

关键词

Keywords

references

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A Jingye , CHEN Da , ZHANG Wenshou , et al . Nondestructive determination of fuel burn-up in Xi'an pulse reactor [J ] . Nuclear Power Engineering , 2004 , 25 ( 6 ): 485 - 488 . DOI: 10.3969/j.issn.0258-0926.2004.06.002 http://dx.doi.org/10.3969/j.issn.0258-0926.2004.06.002 .

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CHANG Jian , CAI Jiejin . Modeling and analysis of fuel rod cladding crevasse in same burn-up area [J ] . High Power Laser and Particle Beams , 2017 , 29 ( 5 ): 056002 . DOI: 10.11884/HPLPB201729.160283 http://dx.doi.org/10.11884/HPLPB201729.160283 .

Shibata K . Graph of fission product yields[DB/OL] . 2013-12-02 2013-12-02 [ 2019-05-15 ] . https://wwwndc.jaea.go.jp/cgi-bin/FPYfig https://wwwndc.jaea.go.jp/cgi-bin/FPYfig .

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134Cs与137Cs放射性活度比在破损燃料组件定位的应用研究

Theoretical research on location of fuel assemblies failure using the activity ratio of134Cs and 137Cs

DOI：10.11889/j.0253-3219.2019.hjs.42.100602

摘要

Abstract

关键词

Keywords

references

¹³⁴Cs与¹³⁷Cs放射性活度比在破损燃料组件定位的应用研究

Theoretical research on location of fuel assemblies failure using the activity ratio of¹³⁴Cs and ¹³⁷Cs