Tuned limiter for receiver amplifier in a fast-recovery pulsed NMR spectrometer
- 1 July 1978
- journal article
- Published by AIP Publishing in Review of Scientific Instruments
- Vol. 49 (7) , 1011-1012
- https://doi.org/10.1063/1.1135509
Abstract
A simple tuned limiter is described which limits the rf voltage amplitude at the input of the receiver amplifier of a pulsed NMR spectrometer. This device prevents overload of the receiver amplifier during the high-power rf pulse and thereby allows fast recovery of the spectrometer following the pulse. When used with Avantek unit amplifiers at 24 MHz, a recovery time of 2.5 mus is achieved.Keywords
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