Patent ID: 7755072
Filing Date: 2010-07-13
Classification: G01B,G01N

Abstract:
1. A non-destructive method of testing a gemstone, said method comprising the steps of: a. providing an X-ray non-destructive system for obtaining a model of a gemstone comprising: said system further comprises a spatial filtering device, said device comprises comprising a plurality of plane elements arranged parallel to a non-scattered beam and is adapted so as to block said rays that are scattered by inclusions accommodated by in said gemstone and angularly propagated towards said detector; b. placing said gemstone on a said holder such that said gemstone to be tested is located in a path of said beam; c. passing said beam through said gemstone; d. radiating said gemstone by means of said emitter; e. scattering said beam on at least one inclusion accommodated in said gemstone; f. detecting said radiation passed through said gemstone by means of said detector; and g. processing said detection data produced in the step (f) such that said two-dimensional topographic pattern of said gemstone is obtained by means of said processor; wherein said method further comprises a step of filtering said scattered radiation out of said radiation passed through said gemstone.