Frequency‐Swept and Proton‐Stabilized NMR Spectrometer for all Nuclei Using a Frequency Synthesizer

The high‐resolution proton‐stabilized, and frequency‐swept spectrometer of Baker and Burd was limited to proton spectra. A modification of this instrument suitable for all magnetic nuclei is described, based upon the use of a Rhode and Schwarz frequency synthesizer. This modification provides genera...

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Bibliographic Details
Published in:Review of scientific instruments 1963-03, Vol.34 (3), p.238-243
Main Authors: Baker, Edward B., Burd, L. W.
Format: Article
Language:English
Subjects:
CRYSTALS
ELECTRONIC EQUIPMENT
FREQUENCY
INSTRUMENTS AND INSTRUMENTATION
NUCLEAR MAGNETIC RESONANCE
NUCLEI
OSCILLATIONS
PROTON BEAMS
PROTONS
SPECTRA
SPECTROMETERS
STABILITY
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Description
Summary:The high‐resolution proton‐stabilized, and frequency‐swept spectrometer of Baker and Burd was limited to proton spectra. A modification of this instrument suitable for all magnetic nuclei is described, based upon the use of a Rhode and Schwarz frequency synthesizer. This modification provides generation and detection of an unmodulated signal at the frequency of another nuclear species, while retaining the features of proton stabilization and precalibration on a frequency scale of the older instrument. Frequency scans from 10 cps to 2 kc may be shifted in precise increments by means of crystal oscillators and the lock‐on features of the synthesizer. In going from one nuclear species to another, ratios of magnetogyric ratios are given automatically to high precision. Examples of spectra are given.
ISSN:0034-6748
1089-7623
DOI:10.1063/1.1718319