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Fan and pencil beams from a common source for x-ray inspection

  • US 6,192,104 B1
  • Filed: 11/24/1999
  • Issued: 02/20/2001
  • Est. Priority Date: 11/30/1998
  • Status: Expired due to Term
First Claim
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1. An inspection system for inspecting an object, the system comprising:

  • (a) a source of penetrating radiation for providing a pencil beam and a fan beam, the pencil beam being noncoplanar with the fan beam;

    (b) a first detector arrangement for detecting penetrating radiation from the fan beam transmitted through the object and generating a transmitted radiation signal;

    (c) a second detector arrangement for detecting penetrating radiation from the pencil beam scattered by the object and generating a scattered radiation signal; and

    (d) a controller for determining at least one characteristic of the object based at least on the transmitted and scattered radiation signals.

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