Stereoscopic Observation of Synthetic Diamond with Haruta Stereo-Pairs of Synchrotron Transmission Double-Crystal Topographs
M. Moorea, A.R. Langb and W. Wierzchowskia
aDepartment of Physic, Royal Holloway College, University of London, Egham Hill, Egham, Surrey, TW20 0EX, Great Britain
bUniversity of Bristol, H.H. Wills Physics Laboratory, Royal Fort, Tyndall Ave., Bristol BS8 1TL, Great Britain
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The Haruta method is used for stereoscopic observation of a 1.5 × 4 × 4 mm3 cuboctahedral synthetic diamond with transmission double-crystal topography. The experiments were performed using a synchrotron double-crystal arrangement with asymmetrical diamond 220 reflection selecting 1.0 Å radiation. The appropriate Haruta pairs were matched from a series taken with positions on the rocking curve changed by small intervals. A reasonable stereoscopic effect was observed for most defect images, particularly dislocations, stacking faults and growth sector boundaries. It was established that some interference fringes do not produce good stereoscopic effects and appear on the exit surfaces of the diamond.
DOI: 10.12693/APhysPolA.86.613
PACS numbers: 61.10.-i