The Texture of Diamonds used for Counting  ,   or   Particles as found from Divergent-Beam X-Ray Photographs

Abstract

Since the radiation-counting efficiency of diamonds is a structure-sensitive property, x-ray experiments have been undertaken to see whether it is related to crystal texture A technique for obtaining divergent beam photographs superimposed on Laue photographs has been developed, and results are given for 28 out of 38 colourless octahedral diamonds (edge 1-3 mm) whose ultra-violet transparency, β-particle counting efficiency and fluorescence are known. The relative strength of the anomalous extra x-ray reflections generally found for comparatively perfect diamonds has also been determined for these 38 specimens Counting efficiency does not seem to be closely related to texture and, in particular, mosaicity is not a necessary condition.