Magnetism in Detection Devices An application of electricity and magnetism USED BY MRI'S by Tessa Albert

Here is an example of the magnetic field surrounding the individual whom is placed in the MRI device.

Everyone knows what an MRI is, but this imaging is a very famous magnetism example. It uses both magnetism and electricity to give us 3-dimensional images of the body so the physicians can identify cancerous cells or any other specific things found within our body.

How does it work?

The MRI system works like this:

  • The person is placed in a tube known as the bore. A very strong magnet runs along the inside of the bore creating a very strong system for the imaging to work.
  • The magnet creates the entire system which causes the nuclei of the atoms inside our body to align. That alignment of the atoms allows the magnetic field to be detected by a scanner detecting the rotating magnetic fields of those atoms. The strength of the said magnet is 5,000- 20,000 gauss.
  • The worlds own magnetic field is only 0.5 gauss!
  • On top of the magnet the MRI system holds another magnet called the superconducting magnet, which is a radio frequency.
  • This magnet is formed of many coils and wires which creates its own magnetic field as well.

How to relate this to Electricity and Magnetism:

The MRI is really a perfect example to relating it to electricity and magnetism. It uses two powerful magnets to direct the nuclei in your body to detect tumors or anything wrong with your body. Electricity in this type of form seems to be Alternating current given that most scientist measure the magnet in Tesla and that AC gives off enough power for the powerful machine to run

Here is the inventor of the MRI: Dr. Raymond Vahan Damadian

Currently the science behind the imaging of the MRI is only growing. The machine and the minds behind it are only getting smarter and the research is making the scanner only smarter.

The future hold a lot of potential for this device. With more improvements the machine will be able to pick up more from the image it receives when the magnet aligns the atoms within the body.

The future holds the inevitable. Our nation's and world's need for the MRI seems to be a on a steady growth with the rate of cancer only increasing. Increasing our knowledge in this science will prove to be the best option.

Works Cited:

A. Gould, RT-(R)(MR)(ARRT) Todd, and Molly Edmonds. "How MRI Works." HowStuffWorks Science. HowStuffWorks, 25 Oct. 2010. Web. 22 Mar. 2017.

Lewis, Tanya. "What Is an MRI (Magnetic Resonance Imaging)?" LiveScience. Purch, 05 Dec. 2014. Web. 22 Mar. 2017.

Created By
Tessa Albert

Report Abuse

If you feel that this video content violates the Adobe Terms of Use, you may report this content by filling out this quick form.

To report a Copyright Violation, please follow Section 17 in the Terms of Use.