期刊论文

Radiation field reconstruction and dismantling route optimization during nuclear decommissioning

中文

核技术

0253-3219

2017

40

5

050502-1-050502-7

10.11889/j.0253-3219.2017.hjs.40.050502

高等学校博士学科点专项科研基金(No.20134324120003)、湖南省教育厅重点项目基金(No.14A120)资助 第一作者：宋英明，男，1980 年出生，2009 年于清华大学获博士学位，研究领域为核设施退役与辐射安全 收稿日期：2016-09-20，修回日期：2016-11-07 Supported by Special Research Fund for the Doctoral Program of Higher Education (No.20134324120003), Key Project Fund of Hunan Provincial Department of Education (No.14A120) First author: SONG Yingming, male, born in 1980, graduated from Tsinghua University with a doctoral degree in 2009, focusing on the field of nuclear facilities and radiation safety Received date: 2016-09-20, accepted date: 2016-11-07

本校为第一机构

辐射场分布和路径选择是核设施退役过程中影响工作人员吸收剂量的主要因素。针对核设施退役过程中多源项的三维辐射场,采用点核积分的方法进行重构,重构结果与蒙特卡罗程序计算结果吻合很好,验证了点核积分法的可行性。将核退役拆除路径问题抽象为一种类旅行商问题数学模型,构造不同拆除路径下所受外照射剂量对应的剂量矩阵,根据辐射防护ALARA (As Low As Reasonably Achievable)原则,利用遗传算法进行寻优。对于多源项退役拆除实例,计算给出了最优化拆除路径和三维可视化显示,并对优化效果进行了讨论。设计开发了面向核设施退役过程的辐射场重构与拆除路径优化功能软件。

Background: Decommissioning nuclear facilities with less cost is a key part of nuclear reactor development, which mainly depends on the dismantling route based on the distribution of radiation field. Purpose: This study attempts to reconstruct the radiation field of decommissioning nuclear facilities and find out the optimal dismantling route. Methods: The method of point-kernel integration is adopted to reconstruct the three-dimensional radiation field of multi-source terms during the decommissioning of nuclear facilities and the results are c...