Glossary
See also the Full-Text Glossary.
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- Access hatch
- Activation
- Active fuel length
- Activity
- Agreement State
- Air sampling
- Airborne radioactivity area
- ALARA
- Alkali silica reaction (ASR)
- Alpha particle
- Anion
- Annual limit on intake (ALI)
- Anticipated transient without scram (ATWS)
- Assumptions (for IPEs, IPEEs, and PRAs)
- Atom
- Atomic energy
- Atomic Energy Commission
- Atomic number
- Attenuation
- Auxiliary building
- Auxiliary feedwater
- Average planar linear heat generation rate (APLGHR)
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- Background radiation
- Bayesian estimation
- Bayesian prior
- Becquerel (Bq)
- Beta particle
- Beyond design-basis accidents
- Binding energy
- Bioassay
- Biological half-life
- Biological shield
- Boiling-water reactor (BWR)
- Bone seeker
- Brachytherapy
- Breeder
- British thermal unit (Btu)
- Byproduct
- Byproduct material
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- Calibration
- Canister
- Capability
- Capacity
- Capacity charge
- Capacity factor
- Capacity factor (gross)
- Capacity factor (net)
- Capacity utilization
- Cask
- Cation
- Chain reaction
- Charged particle
- Chemical recombination
- Cladding
- Classified information
- Cleanup system
- Coastdown
- Cold shutdown
- Collective dose
- Combined license (COL)
- Commercial sector (energy users)
- Committed dose equivalent (CDE)
- Committed effective dose equivalent (CEDE)
- Compact
- Compound
- Condensate
- Condenser
- Construction recapture
- Containment building
- Containment structure
- Contamination
- Control rod
- Control room
- Controlled area
- Coolant
- Cooldown
- Cooling tower
- Core
- Core damage frequency
- Core melt accident
- Cosmic radiation
- Counter
- Critical mass
- Critical organ
- Criticality
- Crud
- Cumulative dose
- Curie (Ci)
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- Daughter products
- Decay heat
- Decay, radioactive
- Declared pregnant woman
- Decommissioning
- DECON
- Decontamination
- Deep-Dose Equivalent (DDE)
- Defense-in-depth
- Departure from nuclear boiling ratio (DNBR)
- Departure from nucleate boiling (DNB)
- Depleted uranium
- Derived air concentration (DAC)
- Derived Air Concentration-Hour (DAC-hour)
- Design certification
- Design-basis accident
- Design-basis phenomena
- Design-basis threat (DBT)
- Detector
- Deterministic (probabilistic)
- Deterministic effect
- Deuterium
- Deuteron
- Differential pressure (dp or dP)
- Doppler coefficient
- Dose
- Dose equivalent
- Dose rate
- Dose, absorbed
- Dosimeter
- Dosimetry
- Dry cask storage
- Drywell
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- Early site permit (ESP)
- Earthquake, operating basis
- Economic Simplified Boiling-Water Reactor (ESBWR)
- Effective Dose Equivalent
- Effective half-life
- Efficiency, plant
- Electric power grid
- Electric utility
- Electrical generator
- Electromagnetic radiation
- Electron
- Element
- Emergency classifications
- Emergency core cooling systems (ECCS)
- Emergency feedwater
- Emergency preparedness (EP)
- Energy Information Administration (EIA)
- ENTOMB
- Environmental qualification
- Event Notification (EN) System
- Event tree
- Exclusion area
- Excursion
- Exposure
- External radiation
- Extremities
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- Fast fission
- Fast neutron
- Fault tree
- Federal Emergency Management Agency (FEMA)
- Federal Energy Regulatory Commission (FERC)
- Feedwater
- Fertile material
- Film badge
- Fiscal year (FY)
- Fissile material
- Fission (fissioning)
- Fission gases
- Fission products
- Fissionable material
- Flux
- Force-on-Force (FOF)
- Foreign Assignee Program
- Formula quantity
- Freedom of Information Act (FOIA)
- Fuel assembly (fuel bundle, fuel element)
- Fuel cycle
- Fuel reprocessing (recycling)
- Fuel rod
- Fuel temperature coefficient of reactivity
- Full-time equivalent
- Fusion reaction
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- Gamma radiation
- Gap
- Gas centrifuge
- Gas chromatography
- Gas-cooled reactor
- Gaseous diffusion
- Gaseous diffusion plant
- Gases
- Gauging devices
- Geiger-Mueller counter
- Generation (gross)
- Generation (net)
- Generator capacity
- Generator nameplate capacity
- Geological repository
- Gigawatt (GW)
- Gigawatthour (GWh)
- Graphite
- Gray (Gy)
- Grid
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- Half-life
- Half-life (radiological)
- Half-life, biological
- Half-life, effective
- Half-thickness
- Head, reactor vessel
- Health physics
- Heap leach
- Heat exchanger
- Heat sink
- Heatup
- Heavy water (D2O)
- Heavy water moderated reactor
- High radiation area
- High-enriched uranium
- High-level radioactive waste (HLW)
- High-level waste
- Highly (or High-) enriched uranium
- Hot
- Hot spot
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- In situ leach
- In situ recovery
- In vitro
- In vivo
- Incident response (IR)
- Independent spent fuel storage installation (ISFSI)
- Individual plant examination (IPE)
- Individual plant examination for external events (IPEEE)
- Induced radioactivity
- Integrated plant evaluation
- International Atomic Energy Agency (IAEA)
- International Nuclear Regulators Association (INRA)
- Iodine spiking factor
- Ion
- Ion-exchange
- Ionization
- Ionization chamber
- Ionizing radiation
- Irradiation
- Isotope
- Isotope separation
- Isotopic enrichment
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[no terms for this letter]
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- Latent cancer fatality (LCF)
- Lens Dose Equivalent
- Lethal dose (LD)
- Licensed material
- Licensee
- Licensing basis
- Light water
- Light water reactor
- Limiting condition for operation
- Limiting safety system settings
- Linear heat generation rate
- Lixiviant
- Loop
- Loss of coolant accident (LOCA)
- Low population zone (LPZ)
- Low-level radioactive waste (LLW)
- Low-level waste
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- Mass number
- Mass-energy equation
- Maximum dependable capacity (gross)
- Maximum dependable capacity (net)
- Mega-
- Megacurie
- Megawatt (MW)
- Megawatthour (MWh)
- Metric ton
- Micro-
- Microcurie
- Mill tailings
- Milli-
- Millirem
- Milliroentgen (mR)
- Mixed oxide (MOX) fuel
- Moderator
- Moderator temperature coefficient of reactivity
- Molecule
- Monitoring of radiation
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- Nano-
- Nanocurie
- National Response Framework (NRF)
- National Source Tracking System (NSTS)
- Natural circulation
- Natural uranium
- Net electric generation
- Net summer capacity
- Neutron
- Neutron capture
- Neutron chain reaction
- Neutron flux
- Neutron generation
- Neutron leakage
- Neutron source
- Neutron, thermal
- Noble gas
- Non-stochastic effect
- Non-vital plant systems
- Nonpower reactor
- Nonpower reactor (research and test reactor)
- Not Applicable (NA)
- Not Reported (NR)
- Nozzle
- NRC Operations Center
- NSTS
- Nuclear energy
- Nuclear Energy Agency (NEA)
- Nuclear force
- Nuclear fuel
- Nuclear Material Management and Safeguards System (NMMSS)
- Nuclear materials
- Nuclear poison (or neutron poison)
- Nuclear power plant
- Nuclear Radiological Incident Annex
- Nuclear reactor
- Nuclear steam supply system
- Nuclear waste
- Nucleon
- Nucleus
- Nuclide
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- Occupational Dose
- Operable
- Operational mode
- Organisation for Economic Co-operation and Development (OECD)
- Orphan sources (unwanted radioactive material)
- Outage
- Outage (forced)
- Outage (full forced)
- Outage (scheduled)
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- Parent
- Parts per million (ppm)
- Pellet, fuel
- Performance indicator
- Performance-based regulation
- Performance-based regulatory action
- Periodic table
- Personnel monitoring
- Photon
- Pico-
- Picocurie
- Pig
- Pile
- Planned special exposure
- Plausible accidents
- Plutonium (Pu)
- Pocket dosimeter
- Poison, neutron
- Pool reactor
- Positron
- Possession-only license
- Power coefficient of reactivity
- Power defect
- Power reactor
- Power uprate
- Preliminary Notification (PN)
- Pressure vessel
- Pressurized-water reactor (PWR)
- Pressurizer
- Primary system
- Probabilistic risk analysis
- Probabilistic risk assessment (PRA)
- Production expense
- Proportional counter
- Proprietary information
- Proton
- Public Dose
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- Rad (radiation absorbed dose)
- Radiation (ionizing radiation)
- Radiation area
- Radiation detection instrument
- Radiation shielding
- Radiation sickness (syndrome)
- Radiation source
- Radiation standards
- Radiation therapy (radiotherapy)
- Radiation warning symbol
- Radiation, ionizing
- Radiation, nuclear
- Radioactive contamination
- Radioactive decay
- Radioactive series
- Radioactivity
- Radiography
- Radioisotope (Radionuclide)
- Radiological sabotage
- Radiological survey
- Radiology
- Radionuclide
- Radiopharmaceutical
- Radiosensitivity
- Radium (Ra)
- Radon (Rn)
- Reaction
- Reactivity
- Reactor coolant system
- Reactor core
- Reactor Oversight Process (ROP)
- Reactor, nuclear
- Reasonable
- Reference man
- Reflector
- REM (Roentgen equivalent man)
- Renewable resources
- Restricted area
- Risk
- Risk-based decisionmaking
- Risk-informed decisionmaking
- Risk-informed regulation
- Risk-significant
- Roentgen (R)
- Rubblization
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- Safe shutdown earthquake
- Safeguards
- Safeguards information (SGI)
- Safety injection
- Safety limit
- Safety-related
- Safety-significant
- SAFSTOR
- Scattered radiation
- Scintillation detector
- Scram
- Sealed source
- Secondary radiation
- Secondary system
- Seismic category I
- Sensitive unclassified nonsafeguards information (SUNSI)
- Severe accident
- Shallow-Dose Equivalent (SDE)
- Shielding
- Shutdown
- Shutdown margin
- Sievert (Sv)
- Somatic effects of radiation
- Source material
- Source term
- Special nuclear material
- Spent (depleted or used) nuclear fuel
- Spent fuel pool
- Spent nuclear fuel
- Stable isotope
- Standard Review Plan
- Standard Technical Specifications
- Startup
- Stay time
- Steam generator
- Stochastic effects
- Subcritical mass
- Subcriticality
- Supercritical reactor
- Supercriticality
- Superheating
- Survey meter
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- Technical Specifications
- Teletherapy
- Terrestrial radiation
- Thermal breeder reactor
- Thermal power
- Thermal reactor
- Thermal shield
- Thermalization
- Thermoluminescent dosimeter
- Thermonuclear
- Title 10 of the Code of Federal Regulations (10 CFR)
- Top event
- Total Effective Dose Equivalent (TEDE)
- Transient
- Transuranic element
- Transuranic waste
- Trip, reactor
- Tritium
- Turbine
- Turbine generator (TG)
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- U.S. Department of Energy (DOE)
- U.S. Department of Homeland Security (DHS)
- U.S. Environmental Protection Agency (EPA)
- Ultraviolet
- Uncertainty range
- Unnecessary regulatory burden
- Unrestricted area
- Unstable isotope
- Unwanted Radioactive Material (Orphan Sources)
- Uprate
- Uranium
- Uranium fuel fabrication facility
- Uranium hexafluoride production facility (or uranium conversion facility)
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- Waste classification (classes of waste)
- Waste, radioactive
- Watt
- Watthour
- Weighting factor (WT)
- Well-logging
- Wheeling service
- Whole-body counter
- Whole-body exposure
- Wipe sample
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[no terms for this letter]
