Nuclear power phase-out | EPFL Graph Search

A nuclear power phase-out is the discontinuation of usage of nuclear power for energy production. Often initiated because of concerns about nuclear power, phase-outs usually include shutting down nuclear power plants and looking towards fossil fuels and renewable energy. Three nuclear accidents have influenced the discontinuation of nuclear power: the 1979 Three Mile Island partial nuclear meltdown in the United States, the 1986 Chernobyl disaster in the USSR (now Ukraine), and the 2011 Fukushima nuclear disaster in Japan. Following Fukushima, Germany has permanently shut down eight of its 17 reactors and pledged to close the rest by the end of 2022. In late 2021 all but three of the remaining German nuclear power plants were shut down. However, there are no plans to shut down the research reactor in Garching, Forschungsreaktor München II. Italy voted overwhelmingly to keep their country non-nuclear. Switzerland and Spain have banned the construction of new reactors. Japan's prime minister called for a dramatic reduction in Japan's reliance on nuclear power. Taiwan's president did the same. Shinzō Abe, the prime minister of Japan from 2012 to 2020, announced a plan to re-start some of the 54 Japanese nuclear power plants (NPPs) and to continue some NPP sites under construction. The impacts of the nuclear shut-downs on the power generation mix, post-Fukushima, have significantly set back emissions reductions goals in these countries. A recent study of the impacts of the German and Japan phaseouts concludes that by continuing to operate their nuclear plants "these two countries could have prevented 28,000 air pollution-induced deaths and 2400 MtCO2 emissions between 2011 and 2017.""By sharply reducing nuclear instead of coal and gas after Fukushima both countries lost the chance to prevent very large amounts of air pollution-induced deaths and emissions".

Gamma-ray Spectroscopy in Low-Power Nuclear Research Reactors

Andreas Pautz, Vincent Pierre Lamirand, Oskari Ville Pakari

Gamma-ray spectroscopy is an effective technique for radioactive material characterization, routine inventory verification, nuclear safeguards, health physics, and source search scenarios. Gamma-ray spectrometers typically cannot be operated in the immedia ...

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