公开(公告)号：WO0006999A8

公开(公告)日：2004-04-15

申请号：PCT/GB9902525

申请日：1999-07-30

Applicant: GERSAN ETS ,  GAUKROGER MICHAEL PETER ,  STEWART ANDREW DAVID GARRY

Inventor： GAUKROGER MICHAEL PETER ,  STEWART ANDREW DAVID GARRY

IPC: G01N23/207

CPC classification number: G01N23/207

Abstract: To examine a diamond (3), the diamond (3) is irradiated with a broad, substantially monochromatic, slightly non-parallel X-ray beam (2), the diamond (3) is rotated on a spindle about an axis normal to the axis of the irradiating beam (2), and an annular detector (7) coaxial with the irradiating beam (2) is used to detect the number and/or spindle angular position of diffracted rays (9) emanating from the diamond (3) around a 180 DEG arc coaxial with the irradiating beam (2). From the number of diffracted rays (9), one detects whether there is lattice misorientation and/or from the positions of the diffracted rays (9), one determines the orientation of the crystal lattice relative to the axis of rotation.

Abstract translation: 为了检查金刚石（3），金刚石（3）被照射宽阔的基本上单色的稍微不平行的X射线束（2），金刚石（3）绕主轴绕垂直于 照射光束（2）的轴线和与照射光束（2）同轴的环形检测器（7）用于检测从金刚石（3）周围散射的衍射光线（9）的数量和/或主轴角位置 与照射光束（2）同轴的180°弧。 从衍射光线（9）的数量，可以检测是否存在晶格取向和/或衍射光线（9）的位置，从而确定晶格相对于旋转轴线的取向。

公开(公告)号：WO1990001392A1

公开(公告)日：1990-02-22

申请号：PCT/GB1989000942

申请日：1989-08-15

Applicant: ANSTALT GERSAN ,  COOPER, Martin ,  STEWART, Andrew, David, Garry

Inventor： ANSTALT GERSAN

IPC: B23K26/06

CPC classification number: B23K26/364

Abstract: To make an elongate cut (1) in a diamond (2) using a laser radiation, a cylindrical optical system (5, 6) is used which converges the radiation at a greater angle of convergence in the plane of the cut (1) than in the transverse plane. In this way, the focal spot energy density is increased and cutting at depth is made more effective.

Abstract translation: 为了使用激光辐射在金刚石（2）中制造细长切口（1），使用圆柱形光学系统（5,6），其以较大的会聚角在切割平面（1）中会聚辐射比 在横向平面。 以这种方式，焦点能量密度增加，深度切割更有效。