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Nuclear fusion is a reaction in which two or more atomic nuclei, usually deuterium and tritium (hydrogen isotopes), combine to form one or more different atomic nuclei and subatomic particles (neutrons or protons). The difference in mass between the reactants and products is manifested as either the release or absorption of energy.
Fusion power is a proposed form of power generation that would generate electricity by using heat from nuclear fusion reactions. In a fusion process, two lighter atomic nuclei combine to form a heavier nucleus, while releasing energy. Devices designed to harness this energy are known as fusion reactors.
History of nuclear fusion. The history of nuclear fusion began early in the 20th century as an inquiry into how stars powered themselves and expanded to incorporate a broad inquiry into the nature of matter and energy, as potential applications expanded to include warfare, energy production and rocket propulsion.
Fusion (phonetics), the merger of phonological features of two speech segments into one feature. Fusion cuisine, the combination of elements of various culinary traditions. Fusional language or inflected language, a type of language. Information fusion, the merging of information from disparate sources.
1932. Ernest Rutherford 's Cavendish Laboratory at Cambridge University begins nuclear experiments with a particle accelerator built by John Cockcroft and Ernest Walton. [ 4 ] In April, Walton produces the first man-made fission by using protons from the accelerator to split lithium into alpha particles.
Deuterium–tritium fusion (sometimes abbreviated D+T) (DTF) is a type of nuclear fusion in which one deuterium (2 H) nucleus (deuteron) fuses with one tritium (3 H) nucleus (triton), giving one helium-4 nucleus, one free neutron, and 17.6 MeV of total energy coming from both the neutron and helium. It is the best known fusion reaction for ...
Fusion nuclear pulse propulsion is one approach to using nuclear fusion energy to provide propulsion. Fusion's main advantage is its very high specific impulse, while its main disadvantage is the (likely) large mass of the reactor. A fusion rocket may produce less radiation than a fission rocket, reducing the
See also. List of fusion experiments. Appearance. Target chamber of the Shiva laser, used for inertial confinement fusion experiments from 1978 until decommissioned in 1981. Plasma chamber of TFTR, used for magnetic confinement fusion experiments, which produced 11 MW of fusion power in 1994. Experiments directed toward developing fusion power ...