Solenoidal microcoil design - Part II: Optimizing winding parameters for maximum signal-to-noise performance
Solenoidal microcoil design - Part II: Optimizing winding parameters for maximum signal-to-noise performance
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DOI：
10.1002/cmr.1008
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发表时间：
2001-01-01
期刊：
影响因子：
--
通讯作者：
Wind, RA
中科院分区：
文献类型：
--
作者：
Minard, KR;Wind, RA
在高场质子核磁共振中，使用紧密配合的螺线管微线圈实现的信噪比(SNR)受到线圈及其引线、用于调谐线圈的电容器的射频(RF)损耗的不利影响；最后，样品。在第二部分中，对各种损耗进行了严格的描述，其严重程度与线圈设计的细节有关。结果不仅为确定微线圈的最佳线径和圈数提供了合理的依据，而且还为评估在涉及导电或非导电样品的高场质子核磁共振研究中，信噪比如何随线圈大小和核磁共振频率变化提供了合理的依据。(C)2001年John Wiley&Sons，Inc.
In high-field proton NMR, the signal-to-noise ratio (SNR) achieved with a close-fitting solenoidal microcoil is adversely affected by radio frequency (RF) losses in the coil, its leads, the capacitor used to tune it; and finally, the sample. In Part II, a rigorous description of these various losses is presented, and their severity is related to the details of coil design. Results not only provide a rational basis for defining a microcoil's optimal wire diameter and the number of turns, but also for evaluating how the SNR varies with coil Size and NMR frequency in high-field proton NMR studies involving either conducting or non-conducting samples. (C) 2001 John Wiley & Sons, Inc.