辐射防护 ›› 2021, Vol. 41 ›› Issue (S1): 50-54.

• 核与辐射事故应急准备与对策 • 上一篇    下一篇

基于事故进程的氟化铀酰溶液临界裂变次数估算方法

贾林胜, 张建岗, 杨亚鹏, 王任泽, 冯宗洋, 王宁, 梁博宁   

  1. 中国辐射防护研究院,太原 030006
  • 收稿日期:2020-12-30 出版日期:2021-10-25 发布日期:2021-11-26
  • 作者简介:贾林胜(1987—),男,2011年毕业于成都理工大学工程技术学院核工程与核技术专业,2014年毕业于中国辐射防护研究院辐射防护与环境保护专业,获硕士学位,助理研究员。E-mail:jialinsheng2020@163.com

Based on accident process to estimate fission number of uranyl fluoride solution criticality

JIA Linsheng, ZHANG Jiangang, YANG Yapeng, WANG Renze, FENG Zongyang, WANG Ning, LIANG Boning   

  1. China Institute for Radiation Protection,Taiyuan 030006
  • Received:2020-12-30 Online:2021-10-25 Published:2021-11-26

摘要: 氟化铀酰溶液临界事故是核燃料循环设施潜在的一种临界事故,需要做好其相应的事故应急评价,为应急响应提供辅助决策支持。临界裂变次数是核临界事故应急评价的重要内容,也是技术难点之一。它反映了核临界事故的大小和规模,直接影响事故应急防护行动决策。裂变次数估算有多种方法,有各自的适用条件。随着事故发生的时间推移,获取的信息越丰富,选择的评价方法也随之优化。因此提出了基于事故进程的氟化铀酰溶液临界裂变次数估算方法,该方法解决了临界事故应急评价实际应用问题及技术人员选择何种评价方法的困难问题。

关键词: 氟化铀酰溶液, 临界事故, 应急评价, 裂变次数

Abstract: Uranyl fluoride solution criticality accident is one of potential criticality accidents for nuclear fuel cycle facility. It is necessary to make corresponding accident emergency assessment, which can provide auxiliary support for emergency decision. Fission number of the criticality is an important part and one of the technical difficulties in nuclear critical accidents emergency assessment. It reflects the size and scale of nuclear criticality accident, and directly affects the decision of emergency protection action. There are many ways to estimate the fission number, and have themselves applicable conditions. With the time passed, the more abundant information obtained, and the selected evaluation method may change to follow it. Therefore, a method for estimating fission number of uranyl fluoride solution criticality based on accident process was proposed, which solved the practical application of critical accident emergency assessment and the difficult problem of which method users should choose.

Key words: uranyl nitrate solution, criticality accident, emergency assessment, fission number

中图分类号: 

  • TL731