Electricity: measuring and testing – Particle precession resonance – Spectrometer components
Patent
1997-03-17
1999-03-23
Barlow, John
Electricity: measuring and testing
Particle precession resonance
Spectrometer components
324307, G01R 3348
Patent
active
058865250
ABSTRACT:
Nuclear magnetic resonance analysis of powdery or other randomly oriented solid samples is improved by slowly rotating the sample with a period exceeding the nuclear spin relaxation time of nuclei in the sample. As a result, a relatively large proportion of the crystallites in the sample are brought into resonance, thereby improving the signal to noise ratio of the NMR reading. In addition, information about the width of the entire spectrum can be obtained from analysis of measurements of only a portion of it.
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Hill Edward A.
Yesinowski James Paul
Barlow John
Edelberg Barry A.
McDonnell Thomas E.
Miller Craig Steven
The United States of America as represented by the Secretary of
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