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Shutdown is the state of a nuclear reactor when the fission reaction is slowed significantly or halted completely. Different nuclear reactor designs have different definitions for what "shutdown" means, but it typically means that the reactor is not producing a measurable amount of electricity or heat and is in a stable condition with very low reactivity.
Norman Hilberry (left) and Leó Szilárd at Stagg Field, site of the first self-sustaining nuclear chain-reaction. There is no definitive origin for the term. United States Nuclear Regulatory Commission historian Tom Wellock notes that scram is English-language slang for leaving quickly and urgently, and he cites this as the original and most likely accurate basis for the use of scram in the ...
Passive nuclear safety is a design approach for safety features, implemented in a nuclear reactor, that does not require any active intervention on the part of the operator or electrical/electronic feedback in order to bring the reactor to a safe shutdown state, in the event of a particular type of emergency (usually overheating resulting from a loss of coolant or loss of coolant flow).
The power station at Dodewaard was shut down in 1997. In 1997 the government decided to end Borssele's operating licence, at the end of 2003. In 2003 the shut-down was postponed by the government to 2013. [98] [99] In 2005 the decision was reversed and research in expanding nuclear power has been initiated.
The forced shutdown of Ukraine’s endangered and crippled Zaporizhzhia nuclear power plant — Europe’s largest — significantly reduces the risk of a radiation disaster that has haunted the ...
Safety at the Russian-held Zaporizhzhia nuclear power plant in Ukraine remains precarious but the shift to a cold shutdown of all six reactor units, completed on Saturday, is positive, the U.N ...
Some nuclear reactors shut down. [ 90 ] [ 91 ] With climate change causing weather extremes such as heat waves , reduced precipitation levels and droughts can have a significant impact on thermal power station infrastructure, including large biomass-electric and fission-electric stations if cooling in these power stations is provided by certain ...
Here is a look at Germany's politically charged debate on nuclear power. The move marks another hiccup in the country's long-running plan to end the use of atomic energy.