公开(公告)号：WO2021209048A1

公开(公告)日：2021-10-21

申请号：PCT/CN2021/087858

申请日：2021-04-16

Applicant: MASTER DYNAMIC LIMITED

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

IPC: G01N23/046 ,  G01N23/20

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.

公开(公告)号：EP4136435A1

公开(公告)日：2023-02-22

申请号：EP21788608.4

申请日：2021-04-16

Applicant: Master Dynamic Limited

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

IPC: G01N23/046 ,  G01N23/20