Home > Electronic Reading Room > Basic References > Glossary Glossary See also the Full-Text Glossary.
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- Access hatch
- Activation
- Active fuel length
- Agreement State
- Air sampling
- Airborne radioactivity area
- ALARA
- Alpha particle
- Anion
- Annual limit on intake (ALI)
- Anticipated Transient Without Scram (ATWS)
- Assumptions (For IPEs, IPEEs & PRAs)
- Atom
- Atomic energy
- Atomic Energy Commission
- Atomic number
- Attenuation
- 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 halflife
- Biological shield
- Boiling water reactor (BWR)
- Bone seeker
- Breeder
- British thermal unit (Btu)
- Byproduct
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- Calibration
- Capability
- Capacity factor (gross)
- Capacity factor (net)
- Cask
- Cation
- Chain reaction
- Charged particle
- Chemical recombination
- Cladding
- Cleanup system
- Coastdown
- Cold shutdown
- Collective dose
- Committed dose equivalent
- Committed effective dose equivalent
- Compact
- Compound
- Condensate
- Condenser
- Construction recapture
- 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
- Decommission
- Decon
- Decontamination
- Defense-in-depth
- Departure From Nuclear Boiling Ratio (DNBR)
- Departure from nucleate boiling (DNB)
- Depleted uranium
- Derived air concentration (DAC)
- Design basis threat
- Design-basis accident
- Design-basis phenomena
- Detector
- Deterministic (probabilistic)
- Deterministic effect
- Deuterium
- Deuteron
- Differential pressure (dp or P)
- Doppler coefficient
- Dose
- Dose equivalent
- Dose rate
- Dose, absorbed
- Dosimeter
- Dosimetry
- Drywell
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- Earthquake, operating basis
- Effective halflife
- Efficiency, plant
- Electrical generator
- Electromagnetic radiation
- Electron
- Element
- Emergency classifications
- Emergency core cooling systems (ECCS)
- Emergency feedwater
- Entomb
- Environmental qualification
- Exclusion area
- Excursion
- Exposure
- External radiation
- Extremities
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- Fast fission
- Fast neutron
- Feedwater
- Fertile material
- Film badge
- Fiscal Year
- Fissile material
- Fission (fissioning)
- Fission gases
- Fission products
- Fissionable material
- Flux
- Formula quantity
- Fuel assembly
- Fuel cycle
- Fuel reprocessing
- Fuel rod
- Fuel temperature coefficient of reactivity
- Full-time equivalent
- Fusion reaction
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- Gamma radiation
- Gap
- Gas Centrifuge
- Gas-cooled reactor
- Gaseous Diffusion Plant
- Gases
- Geiger-Mueller counter
- Generation (gross)
- Generation (net)
- Gigawatt
- Gigawatthour
- Graphite
- Gray (Gy)
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- Half-thickness
- Halflife
- Halflife, biological
- Halflife, effective
- Head, reactor vessel
- Health physics
- Heap leach
- Heat exchanger
- Heat sink
- Heatup
- Heavy water (D20)
- Heavy water moderated reactor
- High Radiation Area
- High-enriched uranium
- High-level waste
- Hot
- Hot spot
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- In situ leach
- In vitro
- In vivo
- Individual Plant Examination
- Individual Plant Examination for External Events
- Integrated plant evaluation
- Iodine Spiking Factor
- Ion-exchange
- Isotope
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[no terms for this letter]
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- Kilo-
- Kilovolt
- Kinetic energy
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- Lethal dose
- Licensing basis
- Light water
- Light water reactor
- Limiting condition for operation
- Limiting safety system settings
- Linear heat generation rate
- Loop
- Loss of coolant accident (LOCA)
- Low population zone (LPZ)
- Low-level waste
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- Mass number
- Mass-energy equation
- Maximum dependable capacity (gross)
- Maximum dependable capacity (net)
- Mega-
- Megacurie
- Megawatt (MW)
- Megawatt hour (MWh)
- Metric ton
- Micro-
- Microcurie
- Mill tailings
- Milli-
- Millirem
- Milliroentgen
- Mixed oxide fuel
- Moderator
- Moderator temperature coefficient of reactivity
- Molecule
- Monitoring of Radiation
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- Nano-
- Nanocurie
- Natural circulation
- Natural uranium
- Net summer capability
- 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
- Nozzle
- Nuclear energy
- Nuclear force
- Nuclear power plant
- Nuclear steam supply system
- Nuclear waste
- Nucleon
- Nucleus
- Nuclide
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- Operable
- Operational mode
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- Parent
- Parts per million (ppm)
- Pellet, fuel
- 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
- Pressure vessel
- Pressurized water reactor (PWR)
- Pressurizer
- Primary system
- Probabilistic risk analysis
- Production expense
- Proportional counter
- Proprietary Information
- Proton
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- Quality factor
- Quantum theory
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- Rad
- Radiation (ionizing radiation)
- Radiation area
- Radiation detection instrument
- Radiation shielding
- Radiation sickness (syndrome)
- Radiation source
- Radiation standards
- Radiation warning symbol
- Radiation, nuclear
- Radioactive contamination
- Radioactive decay
- Radioactive series
- Radioactivity
- Radiography
- Radioisotope
- Radiological sabotage
- Radiological survey
- Radiology
- Radionuclide
- Radiosensitivity
- Radium (Ra)
- Radon (Rn)
- Reaction
- Reactivity
- Reactor coolant system
- Reactor, nuclear
- Reasonable
- Reference man
- Reflector
- REM
- 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
- Safety injection
- Safety limit
- Safety related
- Safety-significant
- SAFSTOR
- Scattered radiation
- Scintillation detector
- Scram
- Sealed source
- Secondary radiation
- Secondary system
- Seismic category I
- Severe accident
- Shielding
- Shutdown
- Shutdown margin
- Sievert (Sv)
- Somatic effects of radiation
- Source material
- Special nuclear material
- Spent (depleted) fuel
- Spent fuel pool
- Spent nuclear fuel
- Stable isotope
- Standard Review Plan
- Standard Technical Specifications
- Startup
- Stay time
- Steam generator
- Stochastic effects
- Subcriticality
- Supercritical reactor
- Supercriticality
- Superheating
- Survey meter
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- Technical Specifications
- Terrestrial radiation
- Thermal breeder reactor
- Thermal power
- Thermal reactor
- Thermal shield
- Thermalization
- Thermoluminescent dosimeter
- Thermonuclear
- Transient
- Transuranic Element
- Transuranic Waste
- Trip, reactor
- Tritium
- Turbine
- Turbine generator (TG)
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- Ultraviolet
- Uncertainty range
- Unnecessary regulatory burden
- Unrestricted area
- Unstable isotope
- Uranium
- Uranium fuel fabrication facility
- Uranium hexafluoride production facility
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- Vapor
- Very high radiation area
- Viability assessment
- Void
- Void coefficient of reactivity
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- Waste, radioactive
- Watt
- Watt-hour
- Weighting factor (Weighting factor, WT)
- Well-logging
- Wheeling Service
- Whole-body counter
- Whole-body exposure
- Wipe sample
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- X-rays
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- Yellowcake
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[no terms for this letter]
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