BGO is the crystalline form of an inorganic oxide with a cubic 
eulytine structure. It is transparent and insoluble in water. 
When exposed to irradiation, such as gamma-rays or X-rays, it 
emits a green fluorescent light with a peak wavelength of 
480nm. It is characterized by high stopping power, high 
scintillation efficiency, and good energy resolution. It is also 
non-hygroscopic. BGO is a good scintillation material and 
has found a wide range of applications in nuclear medicine, 
security, high energy physics, nuclear physics, space physics, 
and geological exploration.