|Density (g/cm3)||7.13||Melting Point (K)||1323|
|Thermal Expansion Coefficient (C-1 )||7 x 10-6||Cleavage Plane||none|
|Wavelength of Emission Max. (nm)||480||Lower Wavelength Cutoff (nm)||320|
|Refractive Index @ Emission Max||2.15||Primary Decay Time (ns)||300|
|Light Yield (photons/keVγ)||8-10||Photoelectron Yield [% of NaI(Tl)] (for γ-rays)||15 - 20|
|Temperature Response||-1.2%/℃||Neutron Capture Cross-section||1.47b|
|Afterglow @ 20ms||150ppm|
Abilities and Specifications:
|Maximum Dimension||∅ 75 mm x 300 mm||Available Items||Single crystal and arrays|
Bismuth Germanate (BGO) Crystal is one of the most common oxide scintillation materials. BGO is a high Z material(a material with a high atomic number), and the atomic number of bismuth is 83, which implies BGO is an efficient radiation absorber, in particular for gamma radiations. Given the high Z value of the material, the photo fraction for gamma absorption is high, as a result, impressive peak-to-total ratios are obtained.
Hangzhou Shalom EO offers BGO bulk crystals with custom specifications. The scintillators are used in high-energy physics (scintillators for electromagnetic calorimeters and detecting assemblies of accelerators), spectrometers of gamma-radiation, and positron tomographies. Besides, Shalom EO also provides Pixelated BGO Scintillation Arrays.