Lithium-Drifted Germanium Detectors: Their Fabrication and Use

A lithium-drifted germanium detector is a semiconductor de­ vice which operates at liquid nitrogen temperature, and is used for detection of nuclear radiation, mostly gamma ray. The detection occurs when the y-ray undergoes an interaction in the intrinsic or I region of the semiconductor. The interaction results in the pro­ duction of charge carriers which are swept out by an electric field. This ...