Neutralization of radiation damping by selective feedback on a 400 MHz NMR spectrometer
Neutralization of radiation damping by selective feedback on a 400 MHz NMR spectrometer
复制标题
通过 400 MHz NMR 波谱仪上的选择性反馈来中和辐射阻尼
DOI：
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发表时间：
1995
影响因子：
2.7
通讯作者：
J. Lallemand
中科院分区：
文献类型：
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作者：
A. Louis;D. Abergel;J. Lallemand
摘要辐射阻尼是蛋白质NMR光谱学家中众所周知的一种现象，特别是在高场和高Q探针NMR中，它是不希望的特征的来源。在本文中，我们提出了一个电子中和网络，大大减少了辐射阻尼。它检测辐射场分布，并将具有相同幅度和相反相位的射频场反馈到探头中。在400 MHz Bruker光谱仪上进行的实际实施的实验结果示出。
SummaryRadiation damping is a phenomenon well known among NMR spectroscopists of proteins as a source of undesirable features, especially in high-field and high-Q probe NMR. In this paper, we present an electronic neutralization network which dramatically reduces radiation damping. It detects the radiation field profile and feeds back into the probe an rf field with identical amplitude and opposite phase. Experimental results of a practical implementation carried out on a 400 MHz Bruker spectrometer are shown.