, Volume 65, Issue 5, pp 250–252 | Cite as

Field-focusing nuclear magnetic resonance (FONAR)

Formation of chemical scans in man
  • Raymond Damadian
  • Lawrence Minkoff
  • Michael Goldsmith
  • Jason A. Koutcher


A technique, field-focusing NMR (FONAR), is described for doing NMR scans in large samples. The method utilizes a shaped D.C. magnetic field that confines the NMR-signal-producing region of the sample to a small volume called the resonance aperture. The aperture contains the required values of the H o field to fully bracket the band of the r.f. pulse. The magnet system and r.f. pick-up coil that achieved the first human NMR scan is discussed.


Magnetic Field Nuclear Magnetic Resonance Small Volume Magnet System Resonance Aperture 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. 1.
    Damadian, R.: Science 171, 1151 (1971)Google Scholar
  2. 2.
    Damadian, R.: U.S. Patent 3,789,832, filed 17 March 1972Google Scholar
  3. 3.
    Hinshaw, W.S.: J. Appl. Phys. 47, 3709 (1976)Google Scholar
  4. 4.
    Mansfield, P., Maudsley, A.A.: Brit. J. Radiol. 50, 188 (1977)Google Scholar
  5. 5.
    Kumar, A., Welti, D., Ernst, R.R..: J. Magn. Res. 18, 69 (1975)Google Scholar
  6. 6.
    Bené, G.J., et al.: C.R. Hebd. Seances Acad. Sci. Ser. B 284 (8), 141 (1977)Google Scholar
  7. 7.
    Bloch, F., Hansen, W.W., Packard, M.: Phys. Rev. 70, 474 (1946) Purcell, E.M., Torrey, H.C., Pound, R.V.: ibid. 69, 37 (1946)Google Scholar
  8. 8.
    Damadian, R., et al.: Science 194, 1430 (1976)Google Scholar
  9. 9.
    Damadian, R.: Hosp. Prac. 12, 63 (1977)Google Scholar

Copyright information

© Springer-Verlag 1978

Authors and Affiliations

  • Raymond Damadian
    • 1
  • Lawrence Minkoff
    • 1
  • Michael Goldsmith
    • 1
  • Jason A. Koutcher
    • 1
  1. 1.State University of New YorkBrooklyn

Personalised recommendations