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U.S. Nuclear Regulatory Commission
行业: Government
Number of terms: 11131
Number of blossaries: 0
Company Profile:
As used in power water reactors and boiling water reactors, the interface (inlet and outlet) between reactor plant components (pressure vessel, coolant pumps, steam generators, etc. ) and their associated piping systems.
Industry:Energy
Specifies that information applicable to the particular field was not included in the event report.
Industry:Energy
Specifies that a particular field is not applicable to the event.
Industry:Energy
Systems at a nuclear facility that may or may not be necessary for the operation of the facility (i.e., power production) but that would have little or no effect on public health and safety should they fail. These systems are not safety related.
Industry:Energy
The health effects of radiation, the severity of which vary with the dose and for which a threshold is believed to exist. Radiation-induced cataract formation is an example of a non-stochastic effect (also called a deterministic effect) (see 10 CFR 20. 1003).
Industry:Energy
A nuclear reactor that is used for research, training, or development purposes (which may include producing radioisotopes for medical and industrial uses) but has no role in producing electrical power. These reactors, which are also known as research and test reactors, contribute to almost every field of science, including physics, chemistry, biology, medicine, geology, archeology, and ecology.
Industry:Energy
Uranium enriched to at least 20 percent uranium-235 (a higher concentration than exists in natural uranium ore).
Industry:Energy
A gaseous chemical element that does not readily enter into chemical combination with other elements. An inert gas. Examples are helium, argon, krypton, xenon, and radon.
Industry:Energy
Any material that emits neutrons, such as a mixture of radium and beryllium, that can be inserted into a reactor to ensure a neutron flux large enough to be distinguished from background to register on neutron detection equipment.
Industry:Energy
Neutrons that escape from the vicinity of the fissionable material in a reactor core. Neutrons that leak out of the fuel region are no longer available to cause fission and must be absorbed by shielding placed around the reactor pressure vessel for that purpose.
Industry:Energy