NMR field-cycling spectrometer in which the sample is conveyed on a circular path at a predetermined angular velocity
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United States of America Patent
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Jun 24, 2003
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N/A
app pub date -
Dec 6, 2000
filing date -
Apr 18, 1998
priority date (Note) -
Expired
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Abstract
A field cycling spectrometer for making nuclear magnetic resonance measurements on an object conveys the object under analysis at predetermined angular velocity successively through a first, spatially characterized, constant magnetic field B.sub.0 and a second, spatially characterized, constant magnetic field B.sub.s. Nuclear magnetic resonance signals are detected from the object after passing through the second field. The fields are preferably provided by a toroidal electromagnet having a first circumferential segment operable to maintain said first magnetic field level B.sub.0 therein and a second circumferential segment operable to maintain said second magnetic field level B.sub.s therein.
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