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Nuclear fusion is a type of nuclear reaction where two or more atomic nuclei combine and form one or more heavier nuclei. The process of fusion forms many of the elements of the periodic table , plus it offers an opportunity for limitless energy production.
Let us look at the nuclear fusion example below to understand how the fusion reaction occurs. When deuterium and tritium fuse together, their components are recombined to form a helium atom and a fast neutron.
Nuclear fusion, process by which nuclear reactions between light elements form heavier elements. In cases where interacting nuclei belong to elements with low atomic numbers, substantial amounts of energy are released.
The fusion reaction rate increases rapidly with temperature until it maximizes and then gradually drops off. The DT rate peaks at a lower temperature (about 70 keV, or 800 million kelvin) and at a higher value than other reactions commonly considered for fusion energy.
Fusion reactions power the Sun and other stars. In fusion, two light nuclei merge to form a single heavier nucleus. The process releases energy because the total mass of the resulting single nucleus is less than the mass of the two original nuclei. The leftover mass becomes energy.
The energy harnessed in nuclei is released in nuclear reactions. Fission is the splitting of a heavy nucleus into lighter nuclei and fusion is the combining of nuclei to form a bigger and heavier nucleus. The consequence of fission or fusion is the absorption or release of energy.
A great introduction that starts with the basic concepts of fusion in the Sun and stars and energy from mass, examines man-made fusion, then reviews different approaches to fusion on Earth, including magnetic and inertial confinement.
In the core of the Sun and other similar stars, fusion reactions occur mainly as follows: Proton-proton fusion: In this reaction, two hydrogen nuclei combine to form a deuterium nucleus, releasing a positron (antiparticle of the electron) and a neutrino.
Explain the fission concept in the context of fusion bombs, the production of energy by the Sun, and nucleosynthesis. The process of combining lighter nuclei to make heavier nuclei is called nuclear fusion. As with fission reactions, fusion reactions are exothermic—they release energy.
Fusion reactions take place in a state of matter called plasma — a hot, charged gas made of positive ions and free-moving electrons with unique properties distinct from solids, liquids or gases. The sun, along with all other stars, is powered by this reaction.