Calibration and characterization of a digital X-ray fluorescence bone lead system

被引：22

作者：

Fleming, DEB ^{[1
]}

Forbes, TA ^{[1
]}

机构：

[1] Univ Vermont, Dept Biomed Technol, Burlington, VT 05405 USA

来源：

APPLIED RADIATION AND ISOTOPES | 2001年 / 55卷 / 04期

关键词：

bone lead; X-ray fluorescence; digital spectroscopy;

D O I：

10.1016/S0969-8043(01)00075-6

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Five different combinations of digital shaping parameters were tested for a newly assembled, Cd-109 source, K X-ray fluorescence bone lead system. System calibration results are presented, along with analyses of measurement uncertainty and reproducibility obtained from repeat measurements of a bone phantom and a human tibia. Digital shaping parameters of 2.4 mus for a rise time/fall time and 1.2 mus for a flat top width were identified as superior. The digital system provided significant improvements in overall measurement precision, with gains of at least 25-35% over conventional system results. (C) 2001 Elsevier Science Ltd. All rights reserved.

引用

页码：527 / 532

页数：6

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