Features: Bi4Ge3O12 ( BGO12) is a good scintillation material and has found a wide range of applications in high energy physics, nuclear physics, space physics, nuclear medicine, geological prospecting and other industries. Wafer size: 10 x 10 x 0.5 mm thick Orientation: (001) +/-0.5o Polished surface: substrate surface is EPI polished via a special CMP procedure with RA < 5 A Two sides polished Package: Each wafer is packed in 1000 class clean room with 100 grade plastic bag with wafer container. Typical Properties: Structure Cubic Lattice constant a=10.518 A Density (g/cm3) 7.13 Melting point (oC) 1050 Parameter of crystal cell (A) 10.518 Refractive index 2.15 Radiation length (cm) 1.1 Peak of fluorescence spectra (nm) 480 Decay time (ns) 300 Relative light output (%) 10-14 Nal (Tl) Energy resolution (511 Kev,%) 20