A gamma spectrometer is a scientific instrument used to measure and analyze gamma radiation emitted by radioactive materials. It detects the energy and intensity of gamma rays, allowing researchers to identify specific isotopes and their concentrations. This information is crucial in fields like nuclear physics, environmental monitoring, and medical diagnostics. The device typically consists of a detector, such as a semiconductor or scintillation crystal, and a data acquisition system. When gamma rays interact with the detector, they produce signals that are processed to create a spectrum. This spectrum reveals the energy levels of the gamma rays, helping scientists understand the source and nature of the radiation.