Nuclear Physics
Physics, Nuclear PhysicsNuclear physics studies the structure, behavior, components, and transformations of the atomic nucleus. The atomic nucleus is the dense central region of an atom composed primarily of protons and neutrons, collectively called nucleons. Nuclear physics investigates how these particles interact through the strong nuclear force, one of the four fundamental forces of nature. This field also examines the stability of nuclei, the processes by which nuclei change or decay, and the energy released or absorbed during nuclear reactions.
Nuclear physics studies both naturally occurring and artificially produced nuclear phenomena. Radioactive decay is the spontaneous transformation of unstable nuclei into more stable forms while emitting particles or electromagnetic radiation. Nuclear fission is the splitting of a heavy nucleus into smaller nuclei, releasing energy and additional neutrons. Nuclear fusion is the combining of lighter nuclei into heavier nuclei, also releasing energy. Fusion powers stars such as the Sun, while controlled fission is the basis of most present-day nuclear power reactors.
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The field includes theoretical and experimental investigations of nuclear forces, nuclear structure, isotopes, particle interactions within nuclei, and high-energy nuclear collisions. Researchers use particle accelerators, nuclear reactors, radiation detectors, and advanced computational models to study these phenomena. Nuclear physics overlaps with related disciplines such as Particle Physics, Quantum Mechanics, Astrophysics, and Atomic Physics.
Nuclear physics is not the same as nuclear engineering, although the two fields are closely related. Nuclear physics focuses primarily on understanding the fundamental properties and behavior of nuclei and nuclear matter, whereas nuclear engineering applies this knowledge to the design and operation of practical systems such as reactors, radiation equipment, and nuclear technologies.
