THE OBSERVATION ON DEFECTS IN YAG SINGLE CRYSTAL BY X-RAY TRANSMISSION TOPOGRAPHY
钇铝石榴石单晶缺陷的X射线透射形貌术观察

It was the first time to investigate defects in YAG single crystal grown by Czochralski method by means of X-ray transmission topography. Several grown-in defects, such as growth striations, singular facets and dislocation bands perpendicular to the grown striation, were revealed. The configuration and formation of these defects were discussed in brief.