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Scatter attenuation tomography

  • US 7,924,979 B2
  • Filed: 09/01/2009
  • Issued: 04/12/2011
  • Est. Priority Date: 08/23/2006
  • Status: Expired due to Fees
First Claim
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1. An x-ray inspection system for characterizing an object on a basis of a measure of attenuation substantially transverse to an incident beam, the x-ray inspection system comprising:

  • a source for generating an incident beam of penetrating radiation, the incident beam characterized by a propagation direction and an energy distribution;

    a plurality of detector elements disposed about the beam of penetrating radiation, each detector element characterized by a field of view, each detector element generating a detector signal;

    a processor input adapted to receive a first detector signal characterizing radiation scattered from a first voxel, and to receive a second detector signal characterizing radiation scattered from a second voxel; and

    a processor adapted to determine material composition based upon a calculated attenuation of scattered penetrating radiation, in a direction substantially transverse to the incident beam of penetrating radiation, between the first voxel and the second voxel.

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