Groupe de RMN, DCSO, Ecole Polytechnique, F-91128, Palaiseau, France.
J Biomol NMR. 1995 Feb;5(2):212-6. doi: 10.1007/BF00208813.
Radiation 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.
辐射阻尼是蛋白质 NMR 光谱学家熟知的一种现象,它是产生不理想特征的一个来源,特别是在高场强和高 Q 值探头 NMR 中。本文介绍了一种显著降低辐射阻尼的电子中和网络。它检测辐射场轮廓,并向探头反馈具有相同幅度和相反相位的射频场。在 Bruker 400MHz 光谱仪上进行的实际实现的实验结果。