A CdTe gamma-spectrometer with a built-in pulse-shape discrimination system

A spectrometer with a planar CdTe detector and built-in pulse-shape discrim ination system makes it possible to obtain a high energy resolution (less t han or equal to 3.5 keV at a gamma-quantum energy of 662 keV and a peak-to- Compton ratio of greater than or equal to 3) in a wide range of detected en ergies (40-1500 keV) and external temperatures (-10... +60 degrees C). The new method for pulse-shape discrimination ensures the high performance char acteristics of the spectrometer, which is designed for monitoring and ident ifying radioactive materials at nuclear power plants, factories for reproce ssing spent nuclear fuel, etc.