A new scanning technique for X-ray computed tomography

被引：2
|
作者：
Nukaga, Jun [1 ]
Kitazawa, So [1 ]
Kamimura, Hiroshi [1 ]
机构：
[1] Hitachi Ltd, Power Syst Power & Ind Syst R&D Lab, Hitachi, Ibaraki 3191221, Japan
来源：
NDT & E INTERNATIONAL | 2008年 / 41卷 / 07期
关键词：
X-ray; CT; third generation scanning; partial volume; artifact;
D O I：
10.1016/j.ndteint.2008.04.003
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
A new scanning technique for reducing artifacts due to the partial volume effect is presented which maintains the spatial resolution of the conventional method. These artifacts are stripes and they have a ring shape between the source and the rotation center. Experimental and simulation results are in good agreement. The scanning technique has two data acquisitions per one cross-section, "+" quarter-sensor offset and "-" quarter-sensor offset. The partial volume effect is reduced by mathematical averaging the corresponding data of two data sets and doing image reconstruction with the average data. (c) 2008 Elsevier Ltd. All rights reserved.
引用
收藏
页码：564 / 569
页数：6
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