neutrons of spontaneous fission

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• Spontaneous fission — (SF) is a form of radioactive decay characteristic of very heavy isotopes, and is theoretically possible for any atomic nucleus whose mass is greater than or equal to 100 u (elements near ruthenium). In practice, however, spontaneous fission is… …   Wikipedia

• Fission product — Fission products are the atomic fragments left after a large nucleus fissions. Typically, a large nucleus like Uranium fissions by splitting into two smaller nuclei, along with a few neutrons and a large release of energy in the form of heat… …   Wikipedia

• Fission track dating — is a radiometric dating technique based on analyses of the damage trails, or tracks, left by fission fragments in certain uranium bearing minerals and glasses. Uranium 238 undergoes spontaneous fission decay at a known rate. The fragments emitted …   Wikipedia

• Fission Spontanée — La fission spontanée (FS) est une forme de désintégration radioactive caractéristique des isotopes lourds. Elle est théoriquement possible pour tous les noyaux atomiques dont la masse est supérieure à 100 uma, c’est à dire à peu près plus… …   Wikipédia en Français

• Fission spontanee — Fission spontanée La fission spontanée (FS) est une forme de désintégration radioactive caractéristique des isotopes lourds. Elle est théoriquement possible pour tous les noyaux atomiques dont la masse est supérieure à 100 uma, c’est à dire… …   Wikipédia en Français

• Fission spontanée — La fission spontanée (FS) est une forme de désintégration radioactive caractéristique des isotopes lourds. Elle est théoriquement possible pour tous les noyaux atomiques dont la masse est supérieure à 100 uma, c’est à dire à peu près plus… …   Wikipédia en Français

• Fission — Fis sion, n. [L. fissio. See {Fissure}.] 1. A cleaving, splitting, or breaking up into parts. [1913 Webster] 2. (Biol.) A method of asexual reproduction among the lowest (unicellular) organisms by means of a process of self division, consisting… …   The Collaborative International Dictionary of English

• 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 fission product — Nuclear fission products are the atomic fragments left after a large atomic nucleus fissions. Typically, a large nucleus like that of uranium fissions by splitting into two smaller nuclei, along with a few neutrons and a large release of energy… …   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