Nuclear magnetic resonance

Nuclear magnetic resonance (NMR) 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.

History

The key principle behind NMR, that certain nuclei absorb and re-emit electromagnetic radiation, was first detailed in the mid-20th century by Isidor Isaac Rabi. Rabi was awarded the Nobel Prize in Physics in 1944 for this discovery, which was made during his investigations into the nature of the magnetic moment and magnetic resonance in molecular beams.

Theory

NMR results from specific magnetic properties of certain atomic nuclei. NMR can be used 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 (MRI).

Applications

NMR has become a versatile tool in the studies of molecular physics, crystals, and non-crystalline materials. NMR techniques are also used in medical applications, such as MRI, to visualize the structure and metabolism of the body in detail.

See also

• Magnetic resonance imaging
• NMR spectroscopy
• Isidor Isaac Rabi
• Magnetic moment
• Magnetic resonance

References

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External links

• NMR Wiki - An information portal for NMR spectroscopists.

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