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Method and apparatus for computerized tomographic scanning with plural intersecting sets of parallel radiation beams

  • US 4,817,119 A
  • Filed: 08/25/1977
  • Issued: 03/28/1989
  • Est. Priority Date: 08/25/1977
  • Status: Expired due to Term
First Claim
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1. A tomographic scanner for scanning an area of interest, said tomographic scanner comprising:

  • (a) a source of penetrating radiation;

    (b) first means for moving said source of penetrating radiation in a first arc which is subtended by an angle of at least approximately 120°

    centered on said source in the area of interest,(c) a detector array comprising an endless chain of detectors; and

    (d) second means for moving said detector array in a second arc which is subtended by an angle of at least approximately 120°

    centered on said source;

    (e) said first and second arcs being sized and shaped and said first and second means being adapted to cause said source and said detector array to move at velocities such that a plurality of parallel beam paths may be propagated from said source through said area to said detector array in each of a plurality of angular positions of said source and said detector array.

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