Sir Peter Mansfield
Born: 9 October 1933, London, United Kingdom
Affiliation at the time of the award: University of Nottingham, School of Physics and Astronomy, Nottingham, United Kingdom
Prize motivation: "for their discoveries concerning magnetic resonance imaging"
Field: diagnostic imaging
Prize share: 1/2
Protons and neutrons in the atomic nucleus behave like small spinning magnets. Accordingly, atoms and molecules assume a certain orientation in a magnetic field. This can be dislodged, however, by radio waves of certain frequencies that are characteristic for different atoms. By developing calculation methods during the 1970s, Peter Mansfield contributed to use of the phenomenon to create images of the human body's interior. The incidence of hydrogen atoms is measured and differences in the water content of different tissues provides a basis for magnetic resonance imaging.
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