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Simplified MRI

Is it a tumor? Magnetic Resonance Imaging (MRI) can tell. Your head is full of tiny radio transmitters (the nuclear spins of the hydrogen nuclei of your water molecules). In an MRI unit, these little radios can be made to broadcast their positions, giving a detailed picture of the inside of your head.

 
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Topics Teaching Ideas Software Requirements Translated Versions Credits

Topics

Main Topics

  • MRI

Related Topics

Sample Learning Goals

  • Recognize that light can flip spins if the energy of the photons matches the difference between the energies of spin up and spin down.
  • Recognize that the difference between the energies of spin up and spin down is proportional to the strength of the applied magnetic field.
  • Describe how to put these two ideas together to detect where there is a higher density of spins.

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Teaching Ideas

Tips for Teachers

The teacher's guide contains tips for teachers created by the PhET team (PDF).

Ideas and Activities for this Sim

There is 1 contribution listed.

Ascending Sort (Z-A)Title Author Level Type Updated
MRI lecture and homework Designed by PhET IconImage of Gold StarS. McKaganUG-Intro
UG-Adv		Demo
CQs		11/08

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Software Requirements

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Windows Systems Macintosh Systems Linux Systems
Microsoft Windows XP/Vista/7
Sun Java 1.5.0_15 or later

 OS 10.4.11 or later
Apple Java 1.5.0_19 or later

 Sun Java 1.5.0_15 or later

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Translated Versions

Run localized Download
Chinese Taiwan Chinese, Taiwan Download
Croatian Croatian Download
Dutch Dutch Download
French French Download
Greek Greek Download
Polish Polish Download
Portuguese Portuguese Download
Slovak Slovak Download
Spanish Spanish Download

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Credits

Design Team Third-party Libraries Thanks To
  • Michael Dubson
  • Ron LeMaster (developer)
  • Sam McKagan
  • Kathy Perkins
  • Carl Wieman
  • Interviewer: Danielle Harlow
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