Gamma spectroscopy is a radionuclidic measurement method. While a
Geiger counter determines only the count rate, a gamma spectrometer will determine the energy and the count rate of
gamma rays emitted by
radioactive substances.Gamma spectroscopy is an extremely important method. Most radioactive sources produce gamma rays of various energies and intensities. When these emissions are collected and analyzed with a gamma spectroscopy system, a gamma energy spectrum can be produced. A detailed analysis of this spectrum is typically used to determine the identity and quantity of gamma emitters present in the source. The gamma spectrum is characteristic of the gamma emitting
nuclides contained in the source, just as in optical
spectroscopy, the optical spectrum is characteristic of the atoms and molecules contained in the probe.
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