Bismuth Germinate Oxybromide (BGO20) is a type of bismuth oxygerminate material that is a strong scintillator, which means that it glows in response to radiation. It is widely used as a substrate material in radiation detection and imaging applications due to its high light output, fast decay time, and high radiation resistance. BGO20 substrates have a cubic crystal structure and are made of bismuth, germanium, and oxygen atoms. They have high transparency in the ultraviolet, visible, and near-infrared regions of the electromagnetic spectrum, making them suitable for a wide range of applications. Additionally, BGO20 substrates have good mechanical and thermal stability, making them a popular choice in many industrial applications.