- Отрасли: Government
- Number of terms: 11131
- Number of blossaries: 0
- Company Profile:
An unit of energy equal to one watt of power steadily supplied to, or taken from, an electrical circuit for one hour (or exactly 3. 6x10<sup>3</sup>J).
Industry:Energy
Classification of low-level radioactive waste (LLW) according to its radiological hazard. The classes include Class A, B, and C, with Class A being the least hazardous and accounting for 96 percent of LLW. As the waste class and hazard increase, the regulations established by the NRC require progressively greater controls to protect the health and safety of the public and the environment. For the specific regulations, see Title 10, Section 61. 55, of the Code of Federal Regulations (10 CFR 61. 55), "Waste Classification. ”
Industry:Energy
A facility that receives natural uranium in the form of ore concentrate (known as “yellowcake”) and converts it into uranium hexafluoride (UF6), in preparation for fabricating fuel for nuclear reactors.
Industry:Energy
In a nuclear power reactor, an area of lower density in a moderating system (such as steam bubbles in water) that allows more neutron leakage than does the more dense material around it.
Industry:Energy
An area accessible to individuals, in which radiation levels exceed 500 rad (5 gray) in one hour at 1 meter from the source or from any surface that the radiation penetrates (see 10 CFR 20. 1003).
Industry:Energy
A rate of change in the reactivity of a water reactor system resulting from a formation of steam bubbles as the power level and temperature increase.
Industry:Energy
A decisionmaking process used by the U. S. Department of Energy (DOE) to assess the prospects for safe and secure permanent disposal of high-level radioactive waste in an excavated, underground facility, known as a geologic repository. This decisionmaking process is based on (1) specific design work on the critical elements of the repository and waste package, (2) a total system performance assessment that will describe the probable behavior of the repository, (3) a plan and cost estimate for the work required to complete the license application, and (4) an estimate of the costs to construct and operate the repository.
Industry:Energy
A facility that converts enriched uranium hexafluoride (UF6) into fuel for commercial light-water power reactors, research and test reactors, and other nuclear reactors. The UF6, in solid form in containers, is heated to a gaseous form and then chemically processed to form uranium dioxide (UO2) powder. This powder is then processed into ceramic pellets and loaded into metal tubes, which are subsequently bundled into fuel assemblies. Fabrication also can involve mixed-oxide (MOX) fuel, which contains plutonium oxide mixed with either natural or depleted uranium oxide, in ceramic pellet form.
Industry:Energy
Plutonium, uranium-233, or uranium enriched in the isotopes uranium-233 or uranium-235.
Industry:Energy
A facility that receives natural uranium in the form of ore concentrate (known as “yellowcake”) and converts it into uranium hexafluoride (UF6), in preparation for fabricating fuel for nuclear reactors.
Industry:Energy
