VIDL Network experience can introduce you to radiometrics. The energies of gamma-rays produced by radioactive decay are characteristic of the decaying nuclide. Gamma-ray spectrometers are designed to measure the intensity and energies of gamma-rays and hence measure the distribution of particular radioactive nuclides.

Airborne gamma-ray spectrometry commenced in the late 1960´s and its primary use was in uranium exploration.  Since the mid-1970´s, the method has been applied extensively in support of geological mapping and mineral exploration.  Airborne gamma-ray spectrometry is also used for environmental monitoring and mapping. The natural and anthropogenic radiation data are acquired using gamma-ray spectrometers mounted on fixed-wing aircraft, helicopters, as well as ground surveys using suitable vehicles.

Recently, airborne gamma-ray spectrometry has been used to identify and quantify the distribution of natural and man-made gamma emitting isotopes in the vicinity of nuclear power plants in order to assess the plant´s dose impact on members of the public.  In addition, the data provide an environmental baseline of the nuclear operating site and the surrounding community. In the event of an accidental release of radiation from the facility, a subsequent survey could then be used to determine any increase in dose to the public.

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