Characterization of SOI wafers by synchrotron X-ray topography T. Shimura, K. Fukuda, K. Yasutake and M. Umeno Eur. Phys. J. Appl. Phys., 27 1-3 (2004) 439-442 Published online: 15 July 2004 DOI: 10.1051/epjap:2004067