Crystal Materials Index

Bismuth Germanate – BGO

A relatively hard, high density, non-hydroscopic crystal with good gamma ray absorption. Often used for PET imaging and high energy physics applications as Compton shields.

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Properties Value
Cleavage Planes None
Decay Constant (ns) 300
Density (g.cm-3) 7.13
Emission Spectral Range (nm) 350-650
Melting Point (K) 1323
Peak Scintillation Wavelength (nm) 480
Photons/MeV 8500
Radiation Length (cm) 1.13
Refractive Index at Peak Emission 2.15
Solubility (g/100g H2O @ 300K) Insoluble
Stability Good
Structure Cubic
Transmission Range (nm) 470-7500
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