A Bismuth Germanate-Avalanche Photodiode Module Designed for Use in High Resolution Positron Emission Tomography

  title={A Bismuth Germanate-Avalanche Photodiode Module Designed for Use in High Resolution Positron Emission Tomography},
  author={A. Lightstone and R. Mcintyre and R. Lecomte and D. Schmitt},
  journal={IEEE Transactions on Nuclear Science},
A light-tight, hermetically sealed module for use in high resolution positron emission tomography systems is described. The module has external dimensions 3.8×13.2×33 mm and contains two 3×5×20 Bismuth Germanate (BGO) scintillators, each with its own 3×3 mm silicon avalanche photodiode. When stacked, the vertical packing fraction is 80%. As measured with a 137Cs (662 keV) source, the typical energy resolution is 20% at 22°C, reducing to 16% at 0°C. The single detector time resolution for the… Expand

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