Study of limited angle swing laminography and its application in the inspection of flat components

MING Ming  LI Zheng  WANG Jing  CHENG Jianping  WANG Xuewu  KANG Kejun

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Study of limited angle swing laminography and its application in the inspection of flat components

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- Study of limited angle swing laminography and its application in the inspection of flat components
- NUCLEAR TECHNIQUES Issue 8, (2002)
- 作者机构：
  
  1. 清华大学工程物理系
  2. 清华大学工程物理系,北京,100084
- 作者简介：
- 基金信息：
  
  国家自然科学基金项目 (1970 5 0 0 6 )
- DOI：
  CLC： TL81
- Published：01 August 2002
- 稿件说明：
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[1]明明,李政,王璟,程建平,王学武,康克军.有限角度摆动式分层成像方法及其在薄层结构物质检测中的应用研究[J].核技术,2002(08):567-572.

MING Ming LI Zheng WANG Jing CHENG Jianping WANG Xuewu KANG Kejun. Study of limited angle swing laminography and its application in the inspection of flat components[J]. Nuclear techniques, 2002, (8): 567-572.
[1]明明,李政,王璟,程建平,王学武,康克军.有限角度摆动式分层成像方法及其在薄层结构物质检测中的应用研究[J].核技术,2002(08):567-572. DOI：

MING Ming LI Zheng WANG Jing CHENG Jianping WANG Xuewu KANG Kejun. Study of limited angle swing laminography and its application in the inspection of flat components[J]. Nuclear techniques, 2002, (8): 567-572. DOI：

摘要

在多层结构复合材料获得广泛应用的今天

对其分层结构、密度分布等情况的检测和了解显得尤为重要。在用射线对这类材料进行分层成像检测时

一直存在重建图像质量与重建效率（耗时）的矛盾。本文提出了有限角度摆动式分层成像方法

并且通过计算机仿真计算证明了其合理性和高效率

在此基础上提出了最佳投影角度的选择原则

最后给出了应用实例。

Abstract

It is important to inspect the inner defects

density distribution of the multi-structure complex material. The conflict of resolution of reconstructed image and reconstruction efficiency baffled people long when applying radiation laminography to that kind of material. Limited angle swing laminography algorithm was put forward in this paper. A simulation of printed circuits board by MATLAB attested the rationality and high efficiency of this algorithm. Based upon the simulation

the principle of choosing optimal projection angle was discussed. Finally

an application example was given.

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