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A nuclear meltdown (core meltdown, core melt accident, meltdown or partial core melt [2]) is a severe nuclear reactor accident that results in core damage from overheating. The term nuclear meltdown is not officially defined by the International Atomic Energy Agency [ 3 ] or by the United States Nuclear Regulatory Commission . [ 4 ]
On 26 April 1986, the No. 4 reactor of the Chernobyl Nuclear Power Plant, located near Pripyat, Ukrainian SSR, Soviet Union (now Ukraine) exploded. [1] With tens of direct casualties, it is one of only two nuclear energy accidents rated at the maximum severity on the International Nuclear Event Scale, the other being the 2011 Fukushima nuclear accident.
To combat accidents associated with aging nuclear power plants, it may be advantageous to build new nuclear power reactors and retire the old nuclear plants. In the United States alone, more than 50 start-up companies are working to create innovative designs for nuclear power plants [ 153 ] while ensuring the plants are more affordable and cost ...
KYIV (Reuters) -The world narrowly escaped a radiation disaster when electricity to Europe's largest nuclear power plant was cut off for hours, Ukraine's president said, urging international ...
Globally, there have been at least 99 (civilian and military) recorded nuclear power plant accidents from 1952 to 2009 (defined as incidents that either resulted in the loss of human life or more than US$50,000 of property damage, the amount the US federal government uses to define nuclear energy accidents that must be reported), totaling US$20.5 billion in property damages.
About 880 tons of highly radioactive melted nuclear fuel remains inside the three damaged reactors, but no one knows what condition the melted fuel is in or exactly where in the reactors it fell.
Erosion of the 150-millimetre-thick (5.9 in) carbon steel reactor head at Davis-Besse Nuclear Power Plant, in Oak Harbor, Ohio, USA, in 2002, caused by a persistent leak of borated water The Hanford Site, in Benton County, Washington, USA, represents two-thirds of America's high-level radioactive waste by volume.
The United States essentially stopped building new nuclear plants in the 1970s, and Germany and Japan have been phasing out atomic energy since the 2011 Fukushima Daiichi Nuclear Power Plant ...