基于天然μ子散射特征评估铀板内水平狭缝宽度的方法

肖洒; 何伟波; 帅茂兵; 兰明聪; 韦孟伏

doi:10.11889/j.0253-3219.2017.hjs.40.050202

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基于天然μ子散射特征评估铀板内水平狭缝宽度的方法

低能加速器技术、射线技术及应用 | 更新时间：2021-05-19

- 基于天然μ子散射特征评估铀板内水平狭缝宽度的方法
- Width evaluation of horizontal slit in uranium slabs using a forward comparison method based on cosmic-ray muon scattering
- 核技术 2017年40卷第5期文章编号：050202
- 作者机构：
  
  中国工程物理研究院材料研究所江油 621907
- 作者简介：
  
  [ "肖洒, 男, 1983年出生, 2011年毕业于中国工程物理研究院, 现为博士研究生, 主要从事射线成像技术研究", "XIAO Sa, male, born in 1983, graduated from China Academy of Engineering Physics in 2011, doctoral student, mainly engaged in the research of radiography" ]
  帅茂兵, E-mail:shuaimaobing@caep.cn SHUAI Maobing, E-mail: shuaimaobing@caep.cn
- 基金信息：
  
  中国工程物理研究院科学技术发展基金(No.2015B0103014)
- DOI：10.11889/j.0253-3219.2017.hjs.40.050202
  中图分类号： TP312;TL81
- 收稿日期：2016-11-15，
  
  修回日期：2017-03-17，
  
  纸质出版日期：2017-05-10
- 稿件说明：
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肖洒, 何伟波, 帅茂兵, 等. 基于天然μ子散射特征评估铀板内水平狭缝宽度的方法[J]. 核技术, 2017,40(5):050202

Sa XIAO, Weibo HE, Maobing SHUAI, et al. Width evaluation of horizontal slit in uranium slabs using a forward comparison method based on cosmic-ray muon scattering[J]. Nuclear techniques, 2017, 40(5): 050202
肖洒, 何伟波, 帅茂兵, 等. 基于天然μ子散射特征评估铀板内水平狭缝宽度的方法[J]. 核技术, 2017,40(5):050202 DOI： 10.11889/j.0253-3219.2017.hjs.40.050202.

Sa XIAO, Weibo HE, Maobing SHUAI, et al. Width evaluation of horizontal slit in uranium slabs using a forward comparison method based on cosmic-ray muon scattering[J]. Nuclear techniques, 2017, 40(5): 050202 DOI： 10.11889/j.0253-3219.2017.hjs.40.050202.

摘要

针对经典μ子成像方法用于特殊对象结构探测的技术难点，提出了一种通过直接比较对象发生结构变化前后μ子散射特征的差异来进行形变类型和尺度判定的新思路，称为正向参比法。相比于经典的逆向反演法，该方法在原理上对于初始结构已知的特殊核对象的结构变化探测更有优势。从初步模拟结果来看，在合理的天然μ子通量下，该方法可实现铀板内亚毫米尺度水平狭缝的存在及其尺度的准确判定。

Abstract

Background

Muon tomography based on multiple Coulomb scattering (MCS) has been widely used in structural detection of nuclear objects. However

for some particular objects

the tomographic method would be thwarted by failing to imaging them.

Purpose

In view of the technical difficulties in structural detection of those objects

a novel method named "Forward Comparison Method (FCM)" was proposed.

Methods

Both the deformation and its scale were identified effectively by directly evaluating the evolution of muon scattering properties with respect to the object. This method

instead of the traditional inverse one

showed a methodological superiority in detection of nuclear objects with prior knowledge of the original structure.

Results

Preliminary results based on a computational simulation demonstrated that FCM could be used to identify the horizontal slit in a uranium slab and evaluate its width on the magnitude of sub-millimeters

on condition that the muon flux was reasonable.

Conclusion

The FCM method can be effectively applied in structural detection of particular nuclear objects of hollow structure on a satisfactory timescale.

关键词

Keywords

references

K Borozdin , G Hogan , C Morris , . Surveillance:radiographic imaging with cosmic-ray muons . Nature , 2003 . 422 ( 6929 ): 277 DOI: 10.1038/422277a http://doi.org/10.1038/422277a .

L Schultz , K Borozdin , J Gomez , . Image reconstruction and material Z discrimination via cosmic ray muon radiography . Nuclear Instruments and Methods in Physics ResearchA , 2004 . 519 ( 3 ): 687 - 694 . DOI: 10.1016/j.nima.2003.11.035 http://doi.org/10.1016/j.nima.2003.11.035 .

C Morris , C Alexander , J Bacon , . Tomographic imaging with cosmic ray muons . Science & Global Security , 2008 . 16 ( 1-2 ): 37 - 53 . DOI: 10.1080/08929880802335758 http://doi.org/10.1080/08929880802335758 .

Hagmann C, Lange D, Wright D. Monte Carlo simulation of proton-induced cosmic-ray cascades in the atmosphere (UCRL-TM-229452)[R]. USA:Lawrence Livermore National Laboratory, 2007.

以恒冠. 面向特殊对象的宇宙线缪子散射成像方法研究[D]. 北京: 清华大学, 2015.

YI Hengguan. Research on cosmic ray muon scattering tomography methods for special objects inspection[D]. Beijing:Tsinghua University, 2015.

T Fawcett . An introduction to ROC analysis . Pattern Recognition Letters , 2006 . 27 861 - 874 . DOI: 10.1016/j.patrec.2005.10.010 http://doi.org/10.1016/j.patrec.2005.10.010 .

邹洪侠 , 秦锋 , 程泽凯 , . 二类分类器的ROC曲线生成算法 . 计算机技术与发展 , 2009 . 19 ( 6 ): 109 - 112 . http://www.cnki.com.cn/Article/CJFDTOTAL-WJFZ200906031.htm .

Hongxia ZOU , Feng QIN , Zekai CHENG , . Algorithm for generating ROC curve of two-classifier . Computer Technology & Development , 2009 . 19 ( 6 ): 109 - 112 . http://www.cnki.com.cn/Article/CJFDTOTAL-WJFZ200906031.htm .

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