point fission source

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• nuclear fission — fission (def. 2). [1885 90] * * * Division of a heavy atomic nucleus into two fragments of roughly equal mass, accompanied by the release of a large amount of energy, the binding energy of the subatomic particles. The energy released in the… …   Universalium

• Nuclear fission — For the generation of electrical power by fission, see Nuclear power. Splitting the atom redirects here. For the EP, see Splitting the Atom. Nuclear physics Radioactive decay Nuclear fission Nuclear fusio …   Wikipedia

• Nuclear fusion-fission hybrid — Hybrid nuclear fusion fission (hybrid nuclear power) is a proposed means of generating power by use of a combination of nuclear fusion and fission processes. The concept dates to the 1950s, and was briefly advocated by Hans Bethe during the 1970s …   Wikipedia

• Bombe à fission — Bombe A Pour les articles homonymes, voir Bombe. Explosion atomique de 14 kilotonnes lors de l essai américain XX 27 CHARLIE dans le site d essais du Nevada en …   Wikipédia en Français

• Long-lived fission product — Long lived fission products are radioactive materials with a long half life (more than 200,000 years) produced by nuclear fission. Contents 1 Evolution of radioactivity in nuclear waste 1.1 Short term 1.2 Medium lived fission products …   Wikipedia

• Gun-type fission weapon — Gun type fission weapons are fission based nuclear weapons whose design assembles their fissile material into a supercritical mass by the use of the gun method: shooting one piece of sub critical material into another. Although this is sometimes… …   Wikipedia

• Rocket engine — RS 68 being tested at NASA s Stennis Space Center. The nearly transparent exhaust is due to this engine s exhaust being mostly superheated steam (water vapor from its propellants, hydrogen and oxygen) …   Wikipedia

• Guy Tavernier — (29 mai 1924 à Charleroi – 7 octobre 1996 à Louvain), physicien nucléaire belge qui fit plusieurs découvertes en physique atomique et physique des particules et fut le Père du nucléaire belge et en partie international.… …   Wikipédia en Français

• Commonly-used gamma emitting isotopes — Fission products Caesium 137 is a radioactive isotope which is formed mainly by nuclear fission. It has a half life of 30 years, and decays by pure beta decay to a metastable state of barium 137 (Ba 137m). Barium 137m has a half life of minutes… …   Wikipedia

• Nuclear weapon design — The first nuclear weapons, though large, cumbersome and inefficient, provided the basic design building blocks of all future weapons. Here the Gadget device is prepared for the first nuclear test: Trinity. Nuclear weapon designs are physical,… …   Wikipedia

• radiation — radiational, adj. /ray dee ay sheuhn/, n. 1. Physics. a. the process in which energy is emitted as particles or waves. b. the complete process in which energy is emitted by one body, transmitted through an intervening medium or space, and… …   Universalium