An efficient design for birdcage probes dedicated to small-animal imaging experiments
An efficient design for birdcage probes dedicated to small-animal imaging experiments
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DOI：
10.1007/s10334-004-0059-3
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发表时间：
2004-12-01
影响因子：
2.3
通讯作者：
Mispelter, J
中科院分区：
文献类型：
--
作者：
Lupu, M;Dimicoli, JL;Mispelter, J
在本文中，我们提出了一个简单的，易于复制和易于调谐的设计自制的鸟笼探针诱导线性极化B-1场。提出了一种简单的调谐方法，它保留了一般鸟笼设计的特点的诱导场的均匀性。这是通过增加两个额外的环（链接环），允许一个连接两个相反的点上的鸟笼端环通过调谐电容器。所有的发展阶段，从设计到实际实现，提出了一步一步，以促进实验工作。文中给出了用鸟笼探头获得的一些图像，并附有横向和纵向平面的B-1图。最后，提出了一些建议，以获得圆极化磁场配置。
We are presenting, in this paper, a simple, easily reproducible and easily tuneable design for home-built birdcage probes inducing a linearly polarised B-1 field. A simple tuning method is proposed which preserves the induced field homogeneity that characterises in general the birdcage design. This is achieved by adding two extra rings (link rings) that allow one to connect two opposed points on the birdcage end rings via tuning capacitors. All the development stages, from design to practical realisation, are presented, step by step, in order to facilitate experimentalist work. Some images obtained with the birdcage probe are presented, accompanied by the B-1 maps in transverse as well as longitudinal planes. Finally, a few suggestions are made for obtaining a circularly polarised magnetic field configuration.