Bi₄Ge₃O₁₂ crystals are inorganic compounds composed of bismuth (Bi), germanium (Ge), and oxygen (O), and are important materials mainly used in radiation detection, medical imaging, and particle physics experiments.
BGO has high stopping power, high photopeak efficiency, non-hygroscopicity, and low afterglow, making it excellent as a scintillator material.
For this reason, it is used in a wide range of fields including high-energy physics, nuclear physics, astrophysics, nuclear medicine, and geological exploration.