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X-ray scanner

  • US 4,756,015 A
  • Filed: 06/04/1987
  • Issued: 07/05/1988
  • Est. Priority Date: 07/14/1986
  • Status: Expired due to Fees
First Claim
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1. An x-ray scanner comprising:

  • an x-ray source which generates a fan-shaped x-ray beam;

    a conveyor means for moving an article to be examined through said fan-shaped x-ray beam;

    a plurality of detector channels each having a detector which detects radiation attenuated by said article and generates an electronic signal corresponding to the attenuated radiation incident on the detector;

    an image memory connected to said detector channels having a respective memory location for each of said detectors respectively in said channels; and

    means for controlling entry of data from said detector channels into said image memory by transferring said data from said detector channels into said image memory with transfer from predetermined detector channels being inhibitedcomparator means for recognizing one or more of said electronic signals as a faulty detector signal, and upon recognition of a faulty detector signal by said comparator means said means for controlling inhibiting transfer of data from the channel having the faulty detector signal instead of inhibiting one of said pre-determined detector channels.

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