Effective atomic number measurement with energy-resolved X-ray computed tomography

被引：4
|
作者：
Kanno, Ikuo [1 ]
Yamashita, Yoshiki [1 ]
Kimura, Masashi [1 ]
Inoue, Fukutaro [1 ]
机构：
[1] Kyoto Univ, Grad Sch Engn, Dept Nucl Engn, Nishikyo Ku, Kyoto 6158530, Japan
来源：
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2015年 / 787卷
基金：
日本学术振兴会;
关键词：
X-ray computed tomography; Energy resolved; Effective atomic number; CT SCANNER;
D O I：
10.1016/j.nima.2014.11.072
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
The effective atomic number, Z(eff), is measured by the ratio of linear attenuation coefficients at two different X-ray energies obtained by monochromatic X-ray computed tomography (CT). However, monochromatic X-rays are available in synchrotron facilities only. By defining narrow energy ranges in energy-resolved CT using a current mode "transXend" detector, Z(eff) is measured for sugar and K2HPO4 solutions, as well as for water and acrylic. The experimental Z(eff) values obtained for water and acrylic were in excellent agreement with the theoretical values. The experimental Z(eff) values obtained for the sugar and K2HPO4 solutions had larger errors. (C) 2014 Elsevier B.V. All rights reserved.
引用
收藏
页码：121 / 124
页数：4
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