A comparison of Lenz lenses and LC resonators for NMR signal enhancement

IF 0.9 4区 医学 Q4 CHEMISTRY, PHYSICAL
Mazin Jouda, Robert Kamberger, Jochen Leupold, Nils Spengler, Jürgen Hennig, Oliver Gruschke, Jan G. Korvink
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引用次数: 9

Abstract

High signal-to-noise ratio (SNR) of the NMR signal has always been a key target that drives massive research effort in many fields. Among several parameters, a high filling factor of the MR coil has proven to boost the SNR. In case of small-volume samples, a high filling factor and thus a high SNR can be achieved through miniaturizing the MR coil. However, under certain circumstances, this can be impractical. In this paper, we present an extensive theoretical and experimental investigation of the inductively coupled LC resonator and the magnetic Lenz lens as two candidate approaches that can enhance the SNR in such circumstances. The results demonstrate that the narrow-band LC resonator is superior in terms of SNR, while the non-tuned nature of the Lenz lens makes it preferable in broadband applications.

Abstract Image

用于核磁共振信号增强的Lenz透镜和LC谐振器的比较
核磁共振信号的高信噪比一直是众多领域研究的重点。在几个参数中,高填充系数的磁流变线圈已被证明可以提高信噪比。在小体积样品的情况下,高填充系数和高信噪比可以通过缩小磁阻线圈来实现。然而,在某些情况下,这可能不切实际。在本文中,我们提出了广泛的理论和实验研究电感耦合LC谐振器和磁性Lenz透镜作为两种候选方法,可以在这种情况下提高信噪比。结果表明,窄带LC谐振器在信噪比方面具有优势,而Lenz透镜的非调谐特性使其更适合宽带应用。
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来源期刊
CiteScore
2.60
自引率
0.00%
发文量
3
审稿时长
>12 weeks
期刊介绍: Concepts in Magnetic Resonance Part B brings together engineers and physicists involved in the design and development of hardware and software employed in magnetic resonance techniques. The journal welcomes contributions predominantly from the fields of magnetic resonance imaging (MRI), nuclear magnetic resonance (NMR), and electron paramagnetic resonance (EPR), but also encourages submissions relating to less common magnetic resonance imaging and analytical methods. Contributors come from both academia and industry, to report the latest advancements in the development of instrumentation and computer programming to underpin medical, non-medical, and analytical magnetic resonance techniques.
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