Portal:Nuclear technology
The Nuclear Technology Portal
Introduction
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- Nuclear technology is technology that involves the nuclear reactions of atomic nuclei. Among the notable nuclear technologies are nuclear reactors, nuclear medicine and nuclear weapons. It is also used, among other things, in smoke detectors and gun sights. (Full article...)
- Nuclear power is the use of nuclear reactions to produce electricity. Nuclear power can be obtained from nuclear fission, nuclear decay and nuclear fusion reactions. Presently, the vast majority of electricity from nuclear power is produced by nuclear fission of uranium and plutonium in nuclear power plants. Nuclear decay processes are used in niche applications such as radioisotope thermoelectric generators in some space probes such as Voyager 2. Generating electricity from fusion power remains the focus of international research. (Full article...)
- A nuclear weapon is an explosive device that derives its destructive force from nuclear reactions, either fission (fission bomb) or a combination of fission and fusion reactions (thermonuclear bomb), producing a nuclear explosion. Both bomb types release large quantities of energy from relatively small amounts of matter. (Full article...)
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Windscale Pile No. 1 became operational in October 1950 followed by Pile No. 2 in June 1951. They were intended to last five years, but operated for seven until shut down following the Windscale fire on 10 October 1957. Nuclear decommissioning operations commenced in the 1980s and are estimated to last beyond 2040. Visible changes have been seen as the chimneys were slowly dismantled from top-down; Pile 2's chimney being reduced to the height of adjacent buildings in the early 2000s. However, the demolition of pile 1 chimney has taken much longer as it was significantly contaminated after the 1957 fire. The reactor cores still remain to be dismantled. (Full article...)
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Did you know?
- ... that the sodium fast reactor Fermi 1 suffered a nuclear meltdown that led one operator to suggest "we almost lost Detroit"?
- ... that Helen Steven shared the Gandhi International Peace Award for her opposition to the nuclear submarine base in Scotland?
- ... that plutonium produced in the nuclear reactors at the Hanford Engineer Works was used in the Fat Man bomb used in the atomic bombing of Nagasaki in August 1945?
- ... that the British Tychon missile was developed from a Barnes Wallis concept to keep strike aircraft safe while dropping nuclear bombs?
- ... that in 1958 the Scyla theta pinch device was the first to demonstrate controlled nuclear fusion in the laboratory?
- ... that T. K. Jones thought that a nuclear war was survivable if "there are enough shovels to go around"?
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Bradbury took charge at Los Alamos at a difficult time. Staff were leaving in droves, living conditions were poor and there was a possibility that the laboratory would close. He managed to persuade enough staff to stay and got the University of California to renew the contract to manage the laboratory. He pushed continued development of nuclear weapons, transforming them from laboratory devices to production models. Numerous improvements made them safer, more reliable and easier to store and handle, and made more efficient use of scarce fissionable materiel.
In the 1950s Bradbury oversaw the development of thermonuclear weapons, although a falling-out with Edward Teller over the priority given to their development led to the creation of a rival nuclear weapons laboratory, the Lawrence Livermore Laboratory. In later years, he branched out, constructing the Los Alamos Meson Physics Facility to develop the laboratory's role in nuclear science, and during the Space Race of the 1960s, the laboratory developed the Nuclear Engine for Rocket Vehicle Application (NERVA). The Bradbury Science Museum is named in his honor. (Full article...)
Nuclear technology news
- 3 July 2024 – Russian invasion of Ukraine
- Zaporizhzhia Nuclear Power Plant crisis
- Three kamikaze drones attack an electrical substation for the Russian-held Zaporizhzhia Nuclear Power Plant, injuring eight workers, causing forest fires near the plant's switchyard, and leaving Enerhodar without power or water. (Reuters) (RFE/RL)
- 21 June 2024 – France–Niger relations
- Niger's military junta revokes the operating license of French nuclear fuel producer Orano at the Imouraren uranium mine amid tensions between the two countries. (BBC News)
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