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18 An Introduction to Nuclear Fusion

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  • What is the introduction of nuclear fusion?

    Nuclear Fusion reactions power the Sun and other stars.
    In a fusion reaction, 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.

  • What are the 3 steps of nuclear fusion?

    Nuclear fusion generally follows the basic steps below.

    At least two atoms are heated to very high temperatures.The atoms collide with enough force to overcome the Coulomb force (magnetic repulsion) of their two positively-charged nuclei.The two atoms fuse together.

  • What is nuclear fusion described as?

    Nuclear fusion is when two or more atomic nuclei fuse to form a single heavier nucleus.
    In the reaction, the matter is not conserved because some of the mass of the fusing nuclei is converted to energy.

  • During nuclear fission, a neutron collides with a uranium atom and splits it, releasing a large amount of energy in the form of heat and radiation.
    More neutrons are also released when a uranium atom splits.
    These neutrons continue to collide with other uranium atoms, and the process repeats itself over and over again.
Nuclear fusion, per se, is the process whereby nuclei join together into one nucleus. Such a reaction was first discovered by Marcus Oliphant and coworkers by bombarding high-energy deuterium on deuterium in 1934 and, in the same work, discovering 3H and 3He (Oliphant et al., 1934).

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18 An Introduction to Nuclear Fusion