What is the density of BGO scintillators?

The density of Bismuth Germanate (BGO) scintillators is approximately 7.13 g/cm³, which makes this choice the correct answer. BGO is widely used in medical imaging, particularly in positron emission tomography (PET), because it combines a high density with good stopping power for gamma rays, which is essential for effective photon detection and energy resolution in scintillation detection systems.

The specific density value reflects the material's atomic composition and crystalline structure, contributing to its effectiveness as a scintillation detector. Higher density materials like BGO provide better interaction probabilities with gamma photons, allowing for improved image quality in PET scans.

Understanding the density of these materials is critical for professionals in the field, as it influences the design and efficiency of imaging systems. This knowledge aids in selecting appropriate materials for specific applications in nuclear medicine.