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X-ray detector system having low Z material panel

  • US 7,110,493 B1
  • Filed: 02/28/2002
  • Issued: 09/19/2006
  • Est. Priority Date: 02/28/2002
  • Status: Expired due to Term
First Claim
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1. A method for detecting concealed items on or in an object, the method comprising:

  • producing a pencil beam of x-rays from an x-ray source directed toward said object;

    scanning said beam of x-rays over the surface of said object; and

    detecting x-rays scattered from said beam of x-rays as a result of interacting with said object and a low Z material panel, said object located between said detector and said panel, said detecting comprising differentiating x-rays back scattered by the object from those back scattered by the low Z material panel,wherein said pencil beam of x-rays exposes said object to an x-ray dose in the range of about 1 microRem to about 10 microRem.

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