Non-destructive elemental analysis of vertebral body trabecular bone using muonic X-rays.
Non-destructive elemental analysis of vertebral body trabecular bone using muonic X-rays.
复制标题
使用 μ 子 X 射线对椎体骨小梁进行无损元素分析。
DOI：
10.1259/0007-1285-68-816-1325
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发表时间：
1995
期刊：
影响因子：
--
通讯作者：
K. Sakamoto
中科院分区：
文献类型：
--
作者：
Y. Hosoi;Y. Watanabe;R. Sugita;Y. Tanaka;K. Nagamine;T. Ono;K. Sakamoto
用μ子X射线对人体脊椎骨和腰椎躯干模型进行了非破坏性元素分析。它可以提供关于小的深层次局部体积中的所有元素的定量信息。该实验是利用加拿大温哥华TRIUMF的超导μ介子通道和有效面积为18.5 cm 2的锂漂移锗探测器进行的。μ子通道产生后向衰变的负μ子，其动能范围从0.5到54.2 MeV。μ子束被准直到直径为18 mm。每个数据点的入射μ子数量约为4 x 10（6），约为5 x 10（7）。在用中和甲醛固定的人椎骨的测量中，μ子测量的钙含量与原子吸收分析测量的钙含量之间的相关系数为0.99，显著性水平为0.0003。在测量与腰躯干幻影，钙含量之间的相关系数μ子和原子吸收分析测量为0.99和显着性水平为0.02。结果表明，元素分析在椎体松质骨使用μ子X射线与原子吸收分析的测量密切相关。
Non-destructive elemental analysis with muonic X-rays was performed on human vertebral bone and lumbar torso phantoms. It can provide quantitative information on all elements in small deep-seated localized volumes. The experiment was carried out using the superconducting muon channel at TRIUMF in Vancouver, Canada and a lithium drifted germanium detector with an active area of 18.5 cm2. The muon channel produced backward-decayed negative muons with wide kinetic energy range from 0.5 to 54.2 MeV. The muon beam was collimated to a diameter of 18 mm. The number of incoming muons was about 4 x 10(6) approximately 5 x 10(7) per data point. In the measurements with human vertebral bones fixed with neutralized formaldehyde, the correlation coefficient between calcium content measured by muons and by atomic absorption analysis was 0.99 and the level of significance was 0.0003. In the measurements with lumbar torso phantoms, the correlation coefficient between calcium content measured by muons and by atomic absorption analysis was 0.99 and the level of significance was 0.02. The results suggest that elemental analysis in vertebral body trabecular bone using muonic X-rays closely correlates with measurements by atomic absorption analysis.