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Laminography system and method with electromagnetically directed multipath radiation source

  • US 5,259,012 A
  • Filed: 08/30/1990
  • Issued: 11/02/1993
  • Est. Priority Date: 08/30/1990
  • Status: Expired due to Term
First Claim
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1. A laminography system comprising:

  • an X-ray source adapted for emitting X-rays from a moving point, said X-ray source further comprising;

    a source of electrons for producing a beam of electrons;

    a target anode for converting said beam of electrons into an X-ray source when said beam of electrons impinges upon said target anode;

    an electromagnetic deflector for electronically deflecting said beam of electrons onto said target anode along a first predetermined path about a first designated location such that X-rays are emitted from a moving point which follows said first predetermined path about said first designated location;

    a planar X-ray detector adapted to move along a predetermined path which is coordinated with said first predetermined path of said X-ray source to produce a laminographic image of a first field of view of an image plane within an object being inspected; and

    a control system for regulating and directing said electromagnetic deflector to deflect said beam of electrons onto said target anode along a second predetermined path about a second designated location such that X-rays are emitted from a moving point which follows said second predetermined path about said second designated location, said second predetermined path coordinated with said planar X-ray detector predetermined path to produce a laminographic image of a second field of view of the image plane within the object without altering either the position of the object or said predetermined path of said X-ray detector.

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