Introduction:

Bismuth Silicate (Bi₄Si₃O₁₂) crystal is a new type of scintillation crystal with good performance, which has a wide range of applications in high energy physics, space science, nuclear medicine, etc.

Single crystals of bismuth silicate were grown by the Bridgman method. The excitation and emission spectra are similar to BGO. The light output is 20% of BGO, giving FWHM energy resolution of 31% for 662 keV γ-rays (137Cs). The decay constants are 2 ns (for 6% of intensity), 30 ns (12%) and 100 ns (82%). The radiation hardness against 60Co γ-rays was about 105–106 rad at the emission peak of 480 nm. 

Properties: