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nuclear magnetic resonance |
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nuclear magnetic resonance: see magnetic resonance magnetic resonance, in physics and chemistry, phenomenon produced by simultaneously applying a steady magnetic field and electromagnetic radiation (usually radio waves) to a sample of atoms and then adjusting the frequency of the radiation and the strength of the
..... Click the link for more information. . nuclear magnetic resonance (NMR)Selective absorption of very high-frequency radio waves by certain atomic nuclei subjected to a strong stationary magnetic field. Nuclei that have at least one unpaired proton or neutron act like tiny magnets. When a strong magnetic field acts on such nuclei, it sets them into precession. When the natural frequency of the precessing nuclear magnets corresponds to the frequency of a weak external radio wave striking the material, energy is absorbed by the nuclei at a frequency called the resonant frequency. NMR is used to study the molecular structure of various solids and liquids. Magnetic resonance imaging, or MRI, is a version of NMR used in medicine to view soft tissues of the human body in a hazard-free, noninvasive way. nuclear magnetic resonance [′nü·klē·ər mag′ned·ik ′rez·ən·əns] (physics) A phenomenon exhibited by a large number of atomic nuclei, in which nuclei in a static magnetic field absorb energy from a radio-frequency field at certain characteristic frequencies. Abbreviated NMR. Also known as magnetic nuclear resonance. Want to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit the webmaster's page for free fun content. |
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No references found | However, NMR imaging sales, including MRI, were strong. ISBN: 1-85996-169-X, $131 NMR Imaging of Materials Bernhard Blumich New York: Oxford University Press, 2000, 568 pp. High-Field NMR Imaging -- Lauer also noted that Varian, Inc. |
NMR imaging |
NMPPO NMPPS NMPR NMPRA NMPRC NMPro NMPRP NMPS NMPSC NMPSDS NMPSIA NMPSR NMPT NMPTA NMPTB NMPU NMPW NMPX NMQ NMQA NMQAAC NMQAO NMQF NMR NMR NMR NMR NMR NMR imaging NMR tomographyNMRA NMRAUE NMRB NMRBC NMRC NMRCA NMRCC NMRCD NMRCM NMRD NMRDC NMRDRC NMRE NMREAP NMREB NMREC NMRECA NMREG NMRF NMRFAM NMRFM NMRG NMRGWS | |||||||
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