nuclear criticality

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• Nuclear criticality safety — is a field of nuclear engineering dedicated to the prevention of nuclear and radiation accidents resulting from an inadvertent, self sustaining nuclear chain reaction.[1] Additionally, nuclear criticality safety is concerned with mitigating the… …   Wikipedia

• Criticality — may refer to: Critical thinking in education Critical reflection in adult education Critical mass in nuclear reactions Criticality accident Criticality matrix Nuclear Criticality Safety Prompt critical, an assembly for each nuclear fission event… …   Wikipedia

• Nuclear engineering — is the branch of engineering concerned with the application of the breakdown (fission) as well as the fusion of atomic nuclei and/or the application of other sub atomic physics, based on the principles of nuclear physics. In the sub field of… …   Wikipedia

• Nuclear safety — covers the actions taken to prevent nuclear and radiation accidents or to limit their consequences. This covers nuclear power plants as well as all other nuclear facilities, the transportation of nuclear materials, and the use and storage of… …   Wikipedia

• Criticality accident — …   Wikipedia

• Nuclear chain reaction — A possible nuclear fission chain reaction. 1. A uranium 235 atom absorbs a neutron, and fissions into two new atoms (fission fragments), releasing three new neutrons and a large amount of binding energy. 2. One of those neutrons is absorbed by an …   Wikipedia

• Nuclear safety in the United States — Nuclear safety in the U.S. is governed by federal regulations and continues to be studied by the Nuclear Regulatory Commission (NRC). The safety of nuclear plants and materials controlled by the U.S. government for research and weapons production …   Wikipedia

• Nuclear weapons testing — Nuclear weapons History Warfare Arms race Design Testing Effects Delivery Espionage …   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

• Nuclear Fuel Services — Inc. is an American company that has been a major supplier of fuel for the United States Navy s fleet of nuclear powered vessels since the 1960s. In recent years it has also processed weapons grade uranium into nuclear reactor fuel. It operates a …   Wikipedia

• Nuclear marine propulsion — is propulsion of a ship by a nuclear reactor. Naval nuclear propulsion is propulsion that specifically refers to naval warships (see Nuclear navy). Only a very few experimental civil nuclear ships have been built; the elimination of fossil fuel… …   Wikipedia