Synchrotron X-ray transmission topography of vapour grown α-HgI2 crystals F. Remy, J. Gastaldi, G. Le Lay, A. Rossberg, M. Piechotka, G. Wetzel et E. Kaldis J. Phys. IV France, 04 C9 (1994) C9-203-C9-207 DOI: 10.1051/jp4:1994936