- Industry: Government
- Number of terms: 11131
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The number of nucleons (neutrons and protons) in the nucleus of an atom. Also known as the atomic weight.
Industry:Energy
A type of nuclear reactor fuel (often called “MOX” that contains plutonium oxide mixed with either natural or depleted uranium oxide, in ceramic pellet form. (This differs from conventional nuclear fuel, which is made of pure uranium oxide. ) Using plutonium reduces the amount of highly enriched uranium needed to produce a controlled reaction in commercial light-water reactors. However, plutonium exists only in trace amounts in nature and, therefore, must be produced by neutron irradiation of uranium-238 or obtained from other manufactured sources. As directed by Congress, the NRC regulates the fabrication of MOX fuel by DOE, a program that is intended to dispose of plutonium from international nuclear disarmament agreements. For further detail, see the Fact Sheet on Mixed Oxide Fuel and Frequently Asked Questions About Mixed Oxide Fuel.
Industry:Energy
A material, such as ordinary water, heavy water, or graphite, that is used in a reactor to slow down high-velocity neutrons, thus increasing the likelihood of fission.
Industry:Energy
Continua o periodica determinazione della quantità di radiazioni ionizzanti o contaminazione radioattiva in una regione. Controllo delle radiazioni è una misura di sicurezza per proteggere la salute e la sicurezza del pubblico e l'ambiente attraverso l'uso di analisi biologica, scansioni alfa e altri metodi di indagine radiologica per monitor aria, acque superficiali e acque sotterranee, suolo e sedimento, superfici di attrezzature e personale.
Industry:Energy
La circolazione del liquido refrigerante nel sistema refrigerante reattore senza l'uso delle pompe del refrigerante reattore. La circolazione è dovuta la convezione naturale derivante da diverse densità relativa parti fredde e riscaldata del sistema.
Industry:Energy
