Difference between revisions of "Strong Magnetic Fields"
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*5 x 10^-5 T: Earth | *5 x 10^-5 T: Earth | ||
| − | *5 x 10^-3 T: Sun; see NASA web site ref: http://science.nasa.gov/ | + | *5 x 10^-3 T: Sun; see NASA web site ref: http://science.nasa.gov/science-news/science-at-nasa/2001/ast15feb_1/ |
*5 x 10^-3 T: Refrigerator magnet | *5 x 10^-3 T: Refrigerator magnet | ||
Revision as of 07:16, 24 October 2010
- 5 x 10^-5 T: Earth
- 5 x 10^-3 T: Sun; see NASA web site ref: http://science.nasa.gov/science-news/science-at-nasa/2001/ast15feb_1/
- 5 x 10^-3 T: Refrigerator magnet
- 1 T: Neodynium rare-earth magnet: 1 T
- 2-3 T: Typical Hospital MRI
- 4 T: Functional MRI
- 8.4 T: Experimental Human MRI [REF]
- 11-21 T: Experimental Animal MRI
- 11.7 T used for animal MRI: Beck et al, PMID 11755090
- 21.1 T used for animal MRI: Fu et al. PMID 16125429
- 45 T: Largest continuous man-made magnet [Ref FSU magnet lab}
- 10^8 T: Neutron Stars [Kouveliotou]
- Fields above 10^5 T squeeze elecron orbitals in to cigar shapes
- 10^11 T: Magnetars [Kouveliotou]
- 10^13 T: Upper Limit
- "No known objects in the universe can generate and maintain fields stronger than this level." [Kouveliotou]
References:
Kouveliotou, C., Duncan, R. C. Thompson, C. "Magnetars", Scientific American, Feb. 2003 http://solomon.as.utexas.edu/~duncan/sciam.pdf
link to Duncan's website: http://solomon.as.utexas.edu/magnetar.html