An annex to the National Response Framework, which provides for a timely, coordinated response by Federal agencies to nuclear or radiological accidents or incidents within the United States. This annex covers radiological dispersal devices and improvised nuclear devices, as w...
In reactor physics, a substance (other than fissionable material) that has a large capacity for absorbing neutrons in the vicinity of the reactor core. This effect may be undesirable in some reactor applications because it may prevent or disrupt the fission chain reaction, th...
ler®rlStrategic Teaming and Resource Sharing////c/h?'r/4 /~T. Moser, ChairmanSTARS Integrated Regulatory Affairs GroupP.O. Box 620, Fulton, Missouri 65251Ref: DG-1186 and DG-4013STARS-0900 1February 3, 2009Rulemaking, Directives, and Editing BranchOffice of AdministrationU.S. ...
One of two elements in a two-part pricing method used in capacity transactions (the other element is the energy charge). The capacity charge, sometimes called the demand charge, is assessed on the capacity (amount of electric power) being purchased.
The determination of kinds, quantities, or concentrations and, in some cases, locations of radioactive material in the human body, whether by direct measurement (in vivo counting) or by analysis and evaluation of materials excreted or removed (in vitro) from the human body.
A unit of power (in the international system of units) defined as the consumption or conversion of one joule of energy per second. In electricity, a watt is equal to current (in amperes) multiplied by voltage (in volts).
A neutron that has (by collision with other particles) reached an energy state equal to that of its surroundings, typically on the order of 0.025 eV (electron volts).
Reactors used for research, training, and test purposes, and for the production of radioisotopes for medical, industrial, and academic uses. For additional information, see Research and Test Reactors.
A radiation instrument in which an electronic detection system receives pulses that are proportional to the number of ions formed in a gas-filled tube by ionizing radiation.
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. For additional detail, see Uranium Conversion.
Flora of North America @ efloras.orghttp://www.efloras.org/flora_page.aspx?flora_id=1[4/10/2012 10:05:30 AM] All Floras Advanced Search Login | eFloras Home | HelpFlora of North America Family ListOnline VolumesVolume 1 IntroductionVolume 2 Pteridophytes and Gymnosper...
'Ion COLUMBIANA HI TECH LLCr Nuclear Manufacturing ExcellenceFebruary 5, 2014 DWO-14-008Division of Spent Fuel Storage and TransportationU.S. Nuclear Regulatory Commission11555 Rockville PikeM/S 14 A 44Rockville, MD 28052Attention: Michele SampsonCC: Document Control Desk (wit...
Department of EnergyOffice of Civilian Radioactive Waste ManagementOffice of Repository Development QA: N/A1551 Hillshire Drive Project No. WM-0001 1Las Vegas, NV 89134-6321APR 2 9 2004OVERNIGHT MAILATTN: Document Control DeskDirector, Division of High-Level WasteRepository Sa...
One trillionth (10-12) of a curie.
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).
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.
Nuclear reactor fuel that has been used to the extent that it can no longer effectively sustain a chain reaction. For related information, see Storage of Spent Nuclear Fuel and Transportation of Spent Nuclear Fuel.
A quantitative measure of a particular attribute of licensee performance that shows how well a plant is performing when measured against established thresholds. Licensees submit their data quarterly; the NRC regularly conducts inspections to verify the submittals and then use...
NRC STAFF Response to Comments Received on Draft NUREG-1520Table of ContentsAbstract, Introduction, Glossary, Acronyms and AbbreviationsChapter 1 - Facility and Process DescriptionChapter 2 - Organization and AdministrationChapter 3 - Integrated Safety AnalysisChapter 4 - Radi...
A library providing access to publicly available documents related to the hearings regarding DOE’s application for authorization to construct a high-level nuclear waste geologic repository at Yucca Mountain, NV. The LSN Library is affiliated with the Agencywide Documents...
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.
Any material or obstruction that absorbs radiation and thus tends to protect personnel or materials from the effects of ionizing radiation.
An unstable isotope of an element that decays or disintegrates spontaneously, thereby emitting radiation. Approximately 5,000 natural and artificial radioisotopes have been identified.
A small ionization detection instrument that indicates ionizing radiation exposure directly. An auxiliary charging device is usually necessary.
Postulated events that meet a probability test rather than the more challenging test represented by a design-basis event.