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Method and system for determining a lower-bound density of a body

  • US 5,125,015 A
  • Filed: 01/23/1991
  • Issued: 06/23/1992
  • Est. Priority Date: 01/26/1990
  • Status: Expired due to Fees
First Claim
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1. A method of determining a lower-bound mass-density of a substance within a volume of interest of a body, the method comprising the steps of:

  • scanning a volume of interest of said body with radiation from at least one source of radiation in a predetermined number of directions so as to derive for each direction an area having a plurality of projections thereon each representing a cumulative value of a mass of said substance within the volume of interest along a respective one of the projections wherein said areas bound volume elements contained in said body,determining an estimated volume of the body as an intersection of all volume elements bounded by said areas,comparing for each area the sum of all the projections and applying correction as required so as to remove any disparity between said sums and produce a uniform sum in each one of said directions, anddetermining the lower-bound mass-density of the substance of the body as the quotient of the uniform sum divided by the estimated volume.

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