A method of reducing radiation damping in nuclear magnetic resonance

Abstract

In high resolution nuclear magnetic resonance spectroscopy, radiation damping often distorts the line shapes. To reduce this effect, it has been found necessary to decrease parameters which are generally kept large from signal-to-noise considerations. It is suggested that by application of negative feedback to the resonant circuit containing the sample, the radiation damping effect may be reduced without deterioration in the signal-to-noise ratio.