Definitions for nuclear magnetic resonance
This page provides all possible meanings and translations of the word nuclear magnetic resonance
Random House Webster's College Dictionary
nu′clear magnet′ic res′onance(n.)
the selective absorption of electromagnetic radiation by an atomic nucleus in the presence of a strong, static, magnetic field.
Origin of nuclear magnetic resonance:
nuclear magnetic resonance, NMR, proton magnetic resonance(noun)
resonance of protons to radiation in a magnetic field
nuclear magnetic resonance(Noun)
The absorption of electromagnetic radiation (radio waves), at a specific frequency, by an atomic nucleus placed in a strong magnetic field; used in spectroscopy and in magnetic resonance imaging.
Nuclear magnetic resonance
Nuclear magnetic resonance is a physical phenomenon in which nuclei in a magnetic field absorb and re-emit electromagnetic radiation. This energy is at a specific resonance frequency which depends on the strength of the magnetic field and the magnetic properties of the isotope of the atoms; in practical applications, the frequency is similar to VHF and UHF television broadcasts. NMR allows the observation of specific quantum mechanical magnetic properties of the atomic nucleus. Many scientific techniques exploit NMR phenomena to study molecular physics, crystals, and non-crystalline materials through NMR spectroscopy. NMR is also routinely used in advanced medical imaging techniques, such as in magnetic resonance imaging. All isotopes that contain an odd number of protons and/or of neutrons have an intrinsic magnetic moment and angular momentum, in other words a nonzero spin, while all nuclides with even numbers of both have a total spin of zero. The most commonly studied nuclei are 1H and 13C, although nuclei from isotopes of many other elements have been studied by high-field NMR spectroscopy as well.
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