Production of electricity on the basis of the heat released during the fission of atomic nuclei is of course the best known of the many different nuclear technologies.
The use of radioisotopes and ionising radiation is of inestimable value in scientific research and industry, in medical diagnostics, therapy and sterilisation, in agriculture and food conservation, in the identification of underground reserves of water and oil, and in archaeological research.
All the different types of nuclear technology in use are based on the natural properties of substances: nuclei, isotopes and radioisotopes. These properties are the energy released during nuclear fission and the ionising radiation of radioisotopes. Producing electricity in a nuclear power plant is based on the release of thermal energy during nuclear fission in a reactor.