Page 815 - Radiation Safety

Semiconductor Detector

• Silicon (Si) Detector

▪ Atomic number 14.

▪ Extremely low noise, which results from the use of high-

resistivity Si substrates.

▪ A low-leakage-current fabrication process.

• Germanium (Ge) Detector

▪ Excellent energy resolution, potentially high spatial

resolution, large active volumes leading to high detector

efficiencies, simplified fabrication, and enabling unique

detector geometries and detection schemes.