lithium-drifted silicon detector

A lithium-drifted silicon detector is a type of semiconductor detector used for radiation measurement. When ionizing radiation passes through the detector, it creates electron-hole pairs within the silicon material. An electric field applied across the detector causes these charge carriers to drift, generating a measurable current pulse. This pulse's characteristics can reveal information about the incident radiation, such as its energy. Lithium drifting is a process used to create thicker detectors with a larger depletion region, enhancing their ability to measure higher-energy particles and improving energy resolution. These detectors are often operated at low temperatures, like that of liquid nitrogen, to minimize thermally generated noise and improve performance.12