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Magnetic scanning apparatus

  • US 20040171926A1
  • Filed: 10/24/2003
  • Published: 09/02/2004
  • Est. Priority Date: 03/14/2001
  • Status: Active Grant
First Claim
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1. A magnetic scanning apparatus for scanning a specimen to obtain an image, the apparatus comprising:

  • means for generating an excitation magnetic field in a region in which a specimen to be scanned may be placed, a detector for detecting a magnetic field originating from or modified by the specimen being scanned; and

    means for nullifying the excitation magnetic field in the region of the detector, wherein the means for nullifying comprises a sheet of magnetic material.

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