公开(公告)号：US20230168238A1

公开(公告)日：2023-06-01

申请号：US17919406

申请日：2021-04-16

Applicant: MASTER DYNAMIC LIMITED

Inventor： Yau Chuen YIU ,  Koon Chung HUI ,  Yan Yan MOK

IPC: G01N33/38 ,  G01N23/046 ,  G01N23/20025

CPC classification number: G01N33/381 ,  G01N23/046 ,  G01N23/20025

Abstract: A system (300) for providing a three-dimensional computer tomography image of a gemstone, the system (300) comprising an X-ray source (330) for providing an X-ray towards a gemstone (320); an X-ray detector system for detecting X-rays transmitted through or diffracted by the gemstone (320). The X-ray detector system surrounds the gemstone (320) and detects a three-dimensional multi-angle X-ray diffraction pattern from the gemstone (320) upon rotation of the gemstone (320) within the X-ray field, and provides an output signal therefrom, wherein the output signal provides for invasive three-dimension multiangle X-ray diffraction reconstructed computed tomography from the three-dimension multiangle X-ray diffraction pattern.