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Nuclear reactor accidents continued into the 1960s with a small test reactor exploding at the Stationary Low-Power Reactor Number One in Idaho Falls in January 1961 resulting in three deaths which were the first fatalities in the history of U.S. nuclear reactor operations. [6] There was also a partial meltdown at the Enrico Fermi Nuclear ...
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]
A nuclear and radiation accident is defined by the International Atomic Energy Agency (IAEA) as "an event that has led to significant consequences to people, the environment or the facility." Examples include lethal effects to individuals, large radioactivity release to the environment, or a reactor core melt. [ 6 ]
The Three Mile Island accident was a partial nuclear meltdown of the Unit 2 reactor (TMI-2) of the Three Mile Island Nuclear Generating Station on the Susquehanna River in Londonderry Township, near Harrisburg, Pennsylvania. The reactor accident began at 4:00 a.m. on March 28, 1979, and released radioactive gases and radioactive iodine into the ...
The Fukushima Daiichi nuclear disaster has reopened questions about the risks of U.S. nuclear reactors, and especially the pools that store Spent nuclear fuel. In March 2011, nuclear experts told Congress that Spent nuclear fuel pools at US nuclear power plants are too full.
Types of radioactive exposure after a nuclear attack. Radiation poisoning. Toggle Radiation poisoning subsection. Prodromal syndrome. Bone marrow death. Gastrointestinal death. Central nervous system death. Short-term effects (6–8 weeks) Toggle Short-term effects (6–8 weeks) subsection.
1975. Greifswald, East Germany. A near core meltdown at Greifswald Nuclear Power Plant: Three out of six cooling water pumps were switched off for a failed test. A fourth pump broke down by loss of electric power and control of the reactor was lost. 10 fuel elements were slightly damaged before recovery.
The vulnerability of nuclear plants to deliberate attack is of concern in the area of nuclear safety and security. Nuclear power plants, civilian research reactors, certain naval fuel facilities, uranium enrichment plants, fuel fabrication plants, and even potentially uranium mines are vulnerable to attacks which could lead to widespread radioactive contamination.