graphite-uranium reactor

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• Uranium — (pronEng|jʊˈreɪniəm) is a silvery gray metallic chemical element in the actinide series of the periodic table that has the symbol U and atomic number 92. It has 92 protons and 92 electrons, 6 of them valence electrons. It can have between 141 and …   Wikipedia

• uranium processing — Introduction       preparation of the ore for use in various products.       Uranium (U), although very dense (19.1 grams per cubic centimetre), is a relatively weak, nonrefractory metal. Indeed, the metallic properties of uranium appear to be… …   Universalium

• Uranium-235 — Infobox isotope background = #fc6 text color = isotope name = Uranium 235 isotope filename = alternate names = mass number = 235 symbol =U num neutrons = 143 num protons = 92 abundance =0.72% halflife = 703,800,000 years error halflife = decay… …   Wikipedia

• Uranium naturel graphite gaz — Les tranches A1 et A2 de la centrale nucléaire de Saint Laurent. La technologie de réacteurs nucléaires uranium naturel graphite gaz (UNGG) est une technologie, maintenant obsolète, développée en France dans les années 1950. Sommaire …   Wikipédia en Français

• Uranium dioxide — Chembox new Name = Uranium dioxide ImageFile = UO2lattice.jpg IUPACName = Uranium dioxide Uranium(IV) oxide Section1 = Chembox Identifiers CASNo = 1344 57 6 Section2 = Chembox Properties Formula = UO2 MolarMass = 270 g/mol Solvent = other… …   Wikipedia

• nuclear reactor — Physics. reactor (def. 4). Also called nuclear pile. [1940 45] * * * Device that can initiate and control a self sustaining series of nuclear fission reactions. Neutrons released in one fission reaction may strike other heavy nuclei, causing them …   Universalium

• Pebble bed reactor — Sketch of a pebble bed reactor in Italian …   Wikipedia

• Molten salt reactor — scheme. A molten salt reactor (MSR) is a type of nuclear fission reactor in which the primary coolant, or even the fuel itself is a molten salt mixture. MSRs run at higher temperatures than water cooled reactors for higher thermodynamic… …   Wikipedia

• Nuclear reactor — Core of CROCUS, a small nuclear reactor used for research at the EPFL in Switzerland This article is a subarticle of Nuclear power. A nuclear reactor is a device to initiate and control a sustained nuclear chain reaction. Most commonly they are… …   Wikipedia

• Nuclear reactor physics — See also: Critical mass Nuclear reactor physics is the branch of science that deals with the study and application of chain reaction to induce controlled rate of fission for energy in reactors. Most nuclear reactors use a chain reaction to induce …   Wikipedia

• Behavior of nuclear fuel during a reactor accident — This page is devoted to a discussion of how uranium dioxide nuclear fuel behaves during both normal nuclear reactor operation and under reactor accident conditions such as overheating. Work in this area is often very expensive to conduct, and so… …   Wikipedia