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Short standoff checkpoint detection system

  • US 9,029,778 B1
  • Filed: 11/02/2012
  • Issued: 05/12/2015
  • Est. Priority Date: 11/04/2011
  • Status: Active Grant
First Claim
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1. A method of detecting characteristics of a test subject at a checkpoint, the method comprising:

  • exposing a single test subject to electromagnetic radiation at a security checkpoint;

    determining how the electromagnetic radiation interacts with different portions of the single test subject;

    determining different material properties for the different portions of the single test subject by examining how the electromagnetic radiation interacts with the different portions of the single test subject, wherein determining different material properties comprises detecting wavelength shifts of the electromagnetic radiation; and

    providing an indication of the different material properties of the different portions of the single test subject, wherein providing an indication of the different material properties of the different portions of the single test subject comprises distinguishing between different material properties.

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