UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-0001 OFFICE OF THE INSPECTOR GENERAL July 13, 2015 MEMORANDUM TO: Mark A. Satorius Executive Director for Operations FROM: Stephen D. Dingbaum /RA/ Assistant Inspector General for Audits...
A steam (or water) turbine directly coupled to an electrical generator. The two devices are often referred to as one unit.
Defines an interval within which a numerical result is expected to lie within a specified level of confidence. The interval often used is the 5-95 percentile of the distribution reporting the uncertainty.
The central portion of a nuclear reactor, which contains the fuel assemblies, moderator, neutron poisons, control rods, and support structures. The reactor core is where fission takes place.
A rotary engine made with a series of curved vanes on a rotating shaft, usually turned by water or steam. Turbines are considered the most economical means to turn large electrical generators.
The process undergone by high-energy (fast) neutrons as they lose energy by collision.
A reactor in which the power level is increasing with time.
The period during which personnel may remain in a restricted area in a reactor before accumulating some permissible occupational dose.
Rational, sensible, or resulting from sound judgment.
Standard Review Plan for License Applications for Fuel Cycle Facilities Applications for Fuel Cycle FacilitiesNUREG-1520, Revision 2Soly I Soto Project Manager Soly I. Soto, Project ManagerDivision of Fuel Cycle Safety and SafeguardsJune 10, 20141Agenda Agenda• Purpose of Stan...
New Rulemaking Tracking and ReportingCategory 3 Public MeetingMay 18, 2017Meeting PurposeTo demonstrate the NRC’s new rulemaking webpages and tracking data, answer questions, and receive feedback.2Meeting AgendaWelcome and Introductions 30 minutesDemonstration of New Rulemakin...
UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-0001 OFFICE OF THE INSPECTOR GENERAL May 12, 2014 MEMORANDUM TO: Mark A. Satorius Executive Director for Operations FROM: Stephen D. Dingbaum /RA/ Assistant Inspector General for ...
The ratio of the heat flux needed to cause departure from nucleate boiling to the actual local heat flux of a fuel rod.
Penetrating electromagnetic radiation (photon) having a wavelength that is much shorter than that of visible light. These rays are usually produced by excitation of the electron field around certain nuclei. In nuclear reactions, it is customary to refer to photons originating...
All operations involving the lowering and raising of measuring devices or tools that contain licensed nuclear material or are used to detect licensed nuclear materials in wells for the purpose of obtaining information about the well or adjacent formations that may be used in ...
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).
An approach to regulation taken by the NRC, which incorporates an assessment of safety significance or relative risk. This approach ensures that the regulatory burden imposed by an individual regulation or process is appropriate to its importance in protecting the health and ...
The process by which the NRC monitors and evaluates the performance of commercial nuclear power plants. Designed to focus on those plant activities that are most important to safety, the process uses inspection findings and performance indicators to assess each plant’s safety...
1NRR-DRMAPEm ResourceFrom: Drouin, MarySent: Friday, August 16, 2019 3:01 PMTo: Miller, EdCc: Weerakkody, Sunil; Gilbertson, Anders; Gonzalez, FelixSubject: Aug 21 public mtg 8-16-09.pptxAttachments: Aug 21 public mtg 8-16-09.pptxEd, Attached are my slides for the Aug 21 publ...
A radioactive element with the atomic number 92 and, as found in natural ores, an atomic weight of approximately 238. The two principal natural isotopes are uranium-235 (which comprises 0.7 percent of natural uranium), which is fissile, and uranium-238 (99.3 percent of natur...
A sample made for the purpose of determining the presence of removable radioactive contamination on a surface. It is done by wiping, with slight pressure, a piece of soft filter paper over a representative type of surface area. It is also known as a "swipe" or "smear" sample.
Office of Civilian Radioactive Waste ManagementOA: OAQUALITYASSURANCE REQUIREMENTS ANDDESCRIPTIONDOE/IR W-0333PRevision 16Effective Date: 08/23/2004SIGNATURE ON FILER. Dennis Brown, DirectorOffice of Quality Assurance,9 /2.3DaleSIGNATURE ON FILEW. John Arthur, III., Deputy Dir...
A chemical element used (in the form of "Zircaloy" metals) in cladding for nuclear fuel rods. The thin zirconium tubes contain pellets of nuclear fuel and are bundled together into assemblies for use in a reactor.
A person with the anatomical and physiological characteristics of an average individual that is used in calculations assessing internal dose (also may be called "standard man").
A radioactive isotope (see also stable isotope).