AAO
Absolute activation analysis
Absolute activity
Absolute counting
Absolute full energy peak
Absolute photopeak efficiency
Absorbed dose
Absorber
Absorption (, Energy)
Absorption coefficient (energy)
Absorption coefficient, linear
Absorption coefficient, mass
Absorption cross section
Absorption curve
Absorption edge
Abundance, isotopic
Abundance, natural isotopic
Abundance ratio, isotopic
Accelerated test method
Accelerator
Accelerator mass spectrometry
Acceptable limit
Acceptor
Accountability
Acid digestion
Actinide
Actinium series
Actinoids
Actinometer
Activated sludge
Activation
Activation analysis
Activation analysis, absolute
Activation analysis, instrumental
Activation analysis, neutron
Activation analysis, non-destructive
Activation analysis, post
Activation analysis, radiochemical
Activation cross section
Activation detector
Activation foil
Activation product
Active product
Active (neutron) assay or interrogation
Activity
Activity concentration
Activity curve
Activity, molar
Activity, specific
ADC
Adsorbent
Adsorption
AES
Age, neutron
Age, radioactive
Aggregate recoil
Agonist
Airborn debris or waste
Air equivalent
ALARA
Albedo
ALI
Alpha
Alpha-decay
Alpha-emitter
Alpha-particle
Amalgam exchange
Amplifier, biased linear pulse
Amplifier, linear pulse
Amplitude to time converter)
AMS
Analog to digital converter (ADC)
Analyte
Analytical radiochemistry
Angular correlation
Angular correlation coefficients
Anion exchange
Anion exchanger
Annealing
Annihilation
Annihilation photons
Annihilation radiation
Annual limit of intake
Antagonist
Antagonistic effect
Antibody
Anticoincidence
Anti-Compton gamma-ray spectrometer
Antigen
Antineutrino
Antiparticle
Appearance potential
Archaeometry
Artificial element
Artificial radioactivity
Ashing
Assay
Assay kit
Assay meter
Asymmetry
Atom
Atomic mass
Atomic mass, relative
Atomic mass unit
Atomic number
Atomic pile
Atomic weight
Attenuation
Attenuation coefficient
Attenuation factor
Auger effect
Auger electron
Auger electron spectroscopy
Auger (electron) yield
Authorized limit
Auto-ionization
(Automatic sample changer)
Autoradiogram
Autoradiograph
Autoradiography
Autoradiography, whole body
Autoradiolysis
Average life
Average logarithmic energy decrement

Background
Background radiation
Back extracting
Backscatter
Back washing
Badge
Ballistic deficit
Barn
Batch process
Bateman equations
Beam
Beam current
Beam dump
Beam hole
Beam monitoring
Beam stop
Beam trap
Becquerel
Beta decay
Beta emitter
Beta particle
BGO detector
Beta staility line
Biased linear pulse amplifier
Bi-isotopic monitor
Bifunctional chelate
Binding
Binding agent
Binding capacity
Binding energy
Bioconjugate
Biological half-life
BNCT
Boiling water reactor
Bolus
Bombardment
Boron carbide filter
Boron chamber
Boron nitride filter
Bowen's standard kale
Bq
Bragg curve
Bragg peak
Bragg's rule
Branching decay
Branching fraction
Branching probability
Branching ratio
Breit-Wigner formula
Bremmstrahlung
Bremmstrahlung, inner
Build-up factor
Burial ground
Burn-up
Burn-up fraction
Burn-up, specific
Burst
BWR
By-product

CA
Cadmium cutoff
Cadmium ratio
Cage effect
CAMA module
CANDU
Capture
Capture cross section
Capture, electron
Capture gamma radiation
Capture, radiative
Capture, resonant
Carrier
Carrier-free
Carrier, hold-back
Carrier, isotopic
Carrier, non-isotopic
Carrier proteins
Cascade, Auger
Cascade, gamma
Catcher foil
Cation exchange
Cation exchanger
CBA
CDD
Cell, hot
CEMA
CEMS
Cerenkov detector
Cerenkov effect
Cerenkov radiation
CF
Chain fission yield
Chain reaction
Characteristic curve (of a GM counter)
Characteristic x-radiation
Charge exchange
Charged-particle activation analysis
Charge trapping
Chelate
Chelating resin
Chelation
Chemical dosimeter
Chemical isotope exchange
Chemical neutron activation analysis (CNNA)
Chemical yield
Chemiluminescence
Chemisorption
Chemistry, nuclear
Chemistry, radiation
Chemonuclear reaction
Chopper
Chloramine-T
Chromatogram
Chromatograph
Chromatography
Ci
CINAA
Cladding
Clathrate
CMP
CNAA
Cockroft-Walton generator
Cocktail
Co-crystallisation
Coincidence
Coincidence circuit
Coincidence, delayed
Coincidence, prompt
Coincidence, random
Coincidence, true
Coincidence correction
Coincidence resolving time
Coincident measurement of charged particles
Cold test
Collateral series
Collection efficiency
Collectron
Collimation
Collimator
Collision density
Column (in chromatography)
Column generator
Comparative lifetime
Comparator
Competitive binding assay
Competitive protein-binding assay
Complex
Compound nucleus
Compton edge
Compton effect
Compton electron
Compton scattering
Compton shift
Compton suppression spectrometer
Containment
Contamination
Conversion electron
Conversion, internal
Conversion coefficient, internal
Cooling, radioactive
Coordination
Coprecipitation
Cosmic rays
Coulomb barrier
Count
Counter, radiation
Counter tube
Counter tube, Geiger-Muller
Counter tube, proportional
Counter, well-type
Counting, absolute
Counting efficiency
Counting loss
Counting rate
Cow
CPAA
CPBA
CRAA
Critical absorption
Critical mass
Critical reflection activation analysis
Cross bombardment
Cross fire
Cross-linking
Cross reaction
Cross section
Cross-section, activation
Cross-section, capture
Cross-section, effective
Cross-section, effective thermal
Cross-section, macroscopic
Cross-section, microscopic
Cross-section, partial
Cross-section, thermal
Cross-section, total
Cross-section, Westcott
Crud
Cryptand
Cryptate
Crystal diffraction spectrometer
Cumulative fission yield
Cumulative fraction released
Cumulative penetration
Curie
Current density
Cutie pie
Cyclic activation (analysis)
Cyclic instrumental neutron activation analysis
Cyclotron
CXMS

DAC
Dalton
Dating, radioactive
Daughter (product)
Dead time
Dead time correction
DeBroglie wavelength
Decay chain
Decay constant
Decay curve
Decay energy
Decay, radioactive
Decay (nuclear)
Decay scheme
Decay series
Decontaminant
Decontamination
Decontamination factor
Delayed beta decay
Delayed coincidence
Delayed fission
Delayed neutron activation analysis
Delayed neutron emission
Delta rays
Densitometry
Depleted material
Derivative activation analysis
Derived air concentration
Descendant
Detection efficiency
Detector, 1/v
Detector, diffused junction semiconductor
Detector efficiency (,intrinsic)
Detector, foil
Detector, liquid scintillator
Detector, radiation
Detector, scintillation
Detector, semiconductor
Determinand
Deuteron
Dichromatography
Diffused junction semiconductor detector
Digestion
DIS
Discriminator
Disintegration constant
Disintegration, nuclear
Disintegration rate
Distribution ratio
Displacement analysis
Displacement, radioactive
Donor
Doppler shift
Doppler shift attenuation
Dose
Dose, absorbed
Dose equivalent (,effective)
Dose meters
Dosimeters
Dosimetry
Double irradiation technique
Double labeling
Double radioimmunoassay
Doubling time
Drift(of a charged particle)
DSCEMS
DVI
Dwell time
Dynodes

EC
ECD
EDTA
EDXRF
Effective cadmium cut-off (energy)
Effective thermal cross section
Efficiency (of a counter)
Efficiency, intrinsic
Effluent, radioactive
EKA
Elastic recoil detection analysis
Elastic scattering
Electrodeposition
Electromagnetic radiation
Electrometer
Electron
Electron, aqueous
Electron accelerator
Electron capture
Electron capture detector
Electron, Compton
Electron, conversion
Electron, secondary
Electron spectroscopy for chemical analysis
Electron volt
(Electrophoretic ion focusing)
Electroscope
Electrospraying
Element
Elementary particle
Eluant
Eluate
Eluent
Elute
Emanation
Emanation power
Emanation thermal power
Emanometric analysis
Emulsion, nuclear
ENAA
End labeling
End product
Energy (of a radiation)
Energy, binding
Energy dispersive x-ray fluorescence analysis
Energy flux density
(Energy, ionizing)
Energy level
Energy resolution
Energy threshold
Enrichment
Enrichment factor
Enrichment, isotopic
EOB
Epicadmium neutrons
Epithermal neutron activation analysis
Epithermal neutrons
Epsilon rays
Equilibrium isotope effect
Equilibrium, radioactive
Equilibrium, secular
Equilibrium, transient
ERD
ERDA
ESCA
Escape peak, double
Escape peak, iodine
Escape peak, single
Escape peak, x-ray
Exchange rate
Exchange reactions
Excitation
Excitation energy
Excitation function
Excited state
Exponential decay
Exposure
Extractable species
Extraction
Extraction chromatography
Extraction cycle
Extrapolated range

Fallout, radioactive
Families, radioactive
Faraday cup
FAST
Fast alpha scattering technique
Fast neutron activation analysis
Fast neutrons
Feather analysis
Feather rule
FENA
Fermi
Fertile
FET amplifier
Figure of merit
Film badge
Filter (of a radiation)
Filtered epithermal neutron activation analysis
Fingerprint, nuclear
Fissile
Fission
Fission chamber
Fission counter
Fission fragments
Fission isomer
Fission neutrons
Fission, nuclear
Fission products
Fission, spontaneous
Fission, thermal
Fission yield
Fission yield, chain
Fission yield, cumulative
Fission yield, direct
Fission yield, independent
Fissionable
Fixation
Flow counter
Fluence
Fluor
Fluorescence
Fluorescence yield
Fluorimetry
Fluorography
Fluorometry
Flux
Flux density
Flux density, energy
Flux density, neutron
Flux density, particle
Flux density, photon
Flux density, 2200-meter-per-second
Flux depression
Flux monitor
Flux perturbation
FNAA
Foil detector
Force, nuclear
Forward alpha scattering technique
Four- counting
Fraction, bound
Fraction, free
Fractional crystallization
Free radical
Frenkel defect
Frequency of emission
Fricke dosimeter
ft value
Fuel cycle
Fuel element
Fuel, nuclear
Fuel reprocessing
Full energy peak
Full energy peak efficiency, absolute
Full energy peak efficiency, intrinsic
Full width at half maximum (FWHM)
Full width at tenth maximum (FWTM)
Fusion, nuclear
Fusion reaction, nuclear
FWHM
FWTM

G
Gain (multiplier tube)
Gamma cascade
Gamma quantum
Gamma radiation, capture
Gamma-ray spectrometer
Gamma-ray spectrometer, anti-Compton
Gamma-ray spectrum
Gamow barrier
Gas jet
Gas-flow counter
Gas-transport system
Geiger-Muller counting tube
Geiger-Muller region
Geiger-Muller threshold
Generator
Genetic relation
Geometric attenuation
Geometry (,counting)
Geometry factor
Germanium detector
Germanium detector, Ge(Li)
Germanium detector, high purity
Germanium detector, intrinsic
Glove box
GM counter
Grain yield
Granddaughter
Gray
Grenz rays
Ground state
Group preconcentration
Group separation
Growth and decay curve
Growth curve (of activity)
Guard foil
G-value
Gy

Halflife, biological
Half life, effective
Half life, partial
Half life, radioactive
Half thickness
Half-value layer
Half-value thickness
Halo
HAP
Hapten
Hard radiation
Hardening (neutrons)
HD value
Health Physics
Heavy elements
Heavy ion
Heavy ion accelerator
Heavy ion reaction
Heavy water
Helium jet
Heterogeneous counting
HFR
HIAA
High flux reactor
HMD
Hold-back carrier
Homogeneous counting
Hot atom
Hot cell
Hot laboratory
HPGe
HPLC
HWR
Hydrolysis
Hyperfine structure

IBA
ICPMS
IDA
IDMS
Immunoassay
Immunogen
Immunoradiometric assay
Immunoradiometric assay, two-site
INAA
Independent fission yield
Indicator, radioactive
Induced radioactivity
Inelastic scattering
Infinite source thickness
Inner bremsstrahlung
In source
Instrumental activation analysis
Instrumental photon activation analysis
(Intake)
Integral flux
Integrated flux
Intensity of radiation
Intercomparison, analytical
Interference, nuclear
Interference, spectral
Internal conversion
Internal conversion coefficient
Internal monitor
(Internal target)
Interstitial
Intrinsic efficiency
Intrinsic full energy peak efficiency
Intrinsic Ge detectors
Intrinsic photopeak efficiency
Inverse square law
Ion
Ion beam
Ion beam analysis
(Ion chromatography)
Ion density
Ion exchange
Ion exchange chromatography
Ion exchanger
Ionization
Ionization chamber
Ionization current
Ionization density
Ionization energy
Ionization potential
Ionizing radiation
Ionization, specific
Ion microprobe
Ion pair
Ion geminate pairs
Ion probe microanalysis
IPAA
IPAC
IPMA
Iridium anomaly
IRMA
IRMS
Irradiation
Isobars, nuclear
Isodiapheres
Isomer
Isomeric state
Isomeric transition
Isomers, nuclear
Isorad
Isospin
Isotones
Isotopes
Isotope dilution
Isotope dilution analysis
Isotope dilution analysis, direct
Isotope dilution analysis, reversed
Isotope dilution analysis, substoichiometric
Isotope effect
Isotope exchange
Isotope exchange analysis
Isotope farm
Isotope, stable
Isotope geochronology
Isotope geology
Isotope hydrology
Isotope ratio mass spectrometry
Isotopic abundance
Isotopic carrier
Isotopic modification
Isotopic neutron source
Isotopic nuclides
Isotopic separation
Isotopic substitution
(Isotopic target)
Isotopic tracer
Isotopomer
Isotron
IT
IVNAA
IVPGAA

Jet transfer
Junction, p-n
(Junction divide detector)

K-capture
Kerma
ko factor
K-electron capture
keV
Kryptonates

Label
Labeled
Labeling
Labeling, autologous
Labeling, cold
Labeling, conjugation
Labeling, end
Labeling, exchange
Labeling, excitation
Labeling, general
Labeling, isotopic
Labeling, non-isotopic
Labeling, recoil
Labeling, (site) specific
Labeling, Wilzbach
Lanthanides
Lanthanoids
Laser-induced mass spectroscopy
Laser optoacoustic spectroscopy
Latence time (of a detector)
L-capture
Leach rate
Lead castle
Lead cave
Lead equivalent
Lead glass
Lead housing
Leakage
L-electron capture
Least squares technique
LEPD
LET
Lethargy (of a neutron)
Lewis effect
Lifetime
Ligand
Linac
Linear analyzer
Linear accelerator
Linear electron accelerator
Linear energy transfer
Linear pulse amplifier
Liquid drop model
Liquid emulsion
Liquid ion-exchanger
Liquid scintillation counter
Liquid scintillation detector
Lithium-drifted detector
Live time
Lixiviation
LLOD
LOD
Logit
Loss free counting
Low level counting
LPO method
Luminescence

Macrocycles
Macroporous ion exchanger
Magic numbers
Manipulator
Man-made element
Masking agent
Mass defect
Mass-energy equivalence
Mass excess
Mass number
Mass spectrometry
Matrix (in analysis)
Maximum peremissible concentration
(Maximum permissible dose equivalent)
MCA
Mean free path
Mean life, radioactive
Mean lifetime
Mean linear range
Mean mass range
Measured spectrum
Mechanism
Metastable state
meV
MeV
MIBK
Microautoradiography
Microscopy, nuclear
Micro-PIXE
Microtron
Milking
Mineralization
Mirror nuclei
Mixed labeled
MNAA
Moderation
Moderator
Modification, isotopic
Molecular activation analysis
Molecular neutron activation analysis
Molecular weight
Monitor, beam
Monitor, flux
Monoenergetic radiation
Mossbauer effect
Mossbauer spectrometry
Mossbauer nuclide
Mother
Mother liquor
MPC
Mu
Multichannel (pulse height) analyzer
Multiple scattering
Multiplication neutron
Multiscaling
Mu-mesic atom
Mu-mesic molecule
Muon
Muonium

N
NAA
NaI(Tl) detector
NAMS
Natural isotopic abundance
Natural radioactivity
NCA
NDP
Negatron
Neutrino
Neutron activation
Neutron activation mass spectrometry
Neutron capture
Neutron density
Neutron depth profiling
Neutron diagnostic probe
Neutron excess
Neutron flux
Neutron generator
Neutron number
Neutrons, cold
Neutrons, delayed
Neutrons, epicadmium
Neutrons, epithermal
Neutrons, fast
Neutrons, fission
Neutrons, intermediate
Neutrons, prompt
Neutrons, resonance
Neutrons, slow
Neutrons, thermal
Neutron temperature
Nick translation
NIM module
Nimbin
No carrier added
Nonactivation analysis
Non-destructive activation analysis
Non-ionizing radiation
Non-specific binding
NRA
NSB
Nuclear activation analysis
Nuclear chemistry
Nuclear decay
Nuclear emulsion
Nuclear fission
Nuclear force
Nuclear fusion
Nuclear geology
Nuclear isomers
Nuclear level
Nuclear medicine
Nuclear microprobe
Nuclear migration
Nuclear particle
Nuclear pharmaceuticals
Nuclear radius
Nuclear reaction
Nuclear reaction analysis
Nuclear reactor
Nuclear resonance broadening
Nuclear resonance scattering
Nuclear solid state track detector
Nuclear spectroscopy
Nuclear spin
Nuclear transformation
Nuclear transition
Nucleide
Nucleon
Nucleonics
Nucleon number
Nucleopore filter
Nucleus
Nuclide
Nuclidic mass

Off-line
Oklo reactors
On-line

PAA
PAC
Packing fraction
PAES
Pair attenuation coefficient
Pair production
Paralysis time
Parent
Parity
Partial cross section
Partial decay constant
Particle
Particle density
Particle flux density
Particle-induced desorption mass spectrometry
Particle-induced gamma emission
Particle-induced prompt photon spectrometry
Particle-induced x-ray emission spectroscopy
Particle, nuclear
Particle, elementary
Partition coefficient
Passave assay
Passive interrogation
PDMS
Peak analysis
Peak area method
Peak fitting
Peak-to-Compton ratio
Pellicle
Penetration factor
Perturbed angular correlations
PESA
PET
PGAA
PGNAA
PHA
Photoactivation
Photoeffect
Photoelectric attenuation coefficient
Photoelectric effect
Photoelectric peak
Photoelectron
Photofraction
Photomultiplier tube
Photon
Photon activation
Photoneutron
Photonuclear reaction
Photopeak
Photopeak efficiency, absolute
Photopeak efficiency, intrinsic
Pig
PIGE
PIGME
Pile
Pile-up
P.I.N. semiconductor detector
PIPS
PIXE
Plasma desorption mass spectrometry
Plateau
PM
Pneumatic tube
Pocket ion chamber
POPOP
Position sensitive detector
Positron
Positron annihilation
Positron decay
Positron emission tomography
Positron-
annihilation-
induced Auger electron emission spectroscopy
Positronium
Postlabeling
Power, stopping
PPPO
PRA
Preamplifier
Precision
Preconcentration
Precursor
Projectile
Prompt gamma
Prompt gamma neutron activation analysis
Prompt neutron activation analysis
Prompt radiation analysis
Proofreader
Proportional counter (tube)
Proton
Proton elastic scattering analysis
Proton number
Proton microbeam
Ps
Pseudocyclic activation analysis
Pseudo-
radiocolloid
Pulse amplitude analyzer
Pulse amplitude selector
Pulse height analysis
Pulse height analyzer
Pulse height analyzer, multichannel
Pulse height analyzer, single channel
Pulsed neutrons
Pulsed reactor activation analysis
Purex process
Purity, isotopic
Purity, radiochemical
Purity, radionuclidic
PWR

QF
Quality factor
Quality of radiation
Quantum yield
Quenching
Quenching correction
Q-value
Q_o-value


R
Rabbit
Rad
Radiation
Radiation, annihilation
Radiation, background
Radiation, Cerenkov
Radiation chemistry
Radiation counter
Radiation detector
Radiation effects
Radiation, hard
Radiation hazard
Radiation inactivation method
Radiation, ionizing
Radiation length
Radiation, monoenergetic
Radiation, natural
Radiation, penetrating
Radiation, soft
Radiation source
Radiation spectrum
Radiative capture
Radical
Radioactive
Radioactive age
Radioactive chain
Radioactive contamination
Radioactive cooling
Radioactive dating
Radioactive decay
Radioactive equilibrium
Radioactive fallout
Radioactive half-life
Radioactive indicator
Radioactive period
Radioactive series
Radioactive source
Radioactive tracer
Radioactive tracer technique
Radioactive waste
Radioactivity
Radioactivity, artificial
Radioactivity, induced
Radioactivity, natural
Radioallergo-
(ad)sorbent test (RAST)
Radioanalytical chemistry
Radioanalytical purification
Radioanalytic imaging
Radioautograph
(Radiobio-
geochemistry)
Radiochemical purification
Radiochemical purity
Radiochemical yield
Radiochemistry
Radiochemistry, analytical
Radiochromato-
gram
Radiochromato-
graph
Radiocolloid
Radioecology
(Radioelectro-
phoresis)
Radioelement
(Radio-
environmental chemistry)
Radioenzymatic assay
Radioexchange
Radiogenic
Radiograph
Radiogravimetric analysis
Radioimmuno-
assay
Radioimmuno-
assay, solid phase antibody
Radioimmuno-
electrophoresis
Radioiodination
Radioisotope
Radioisotope dilution analysis
Radioisotope generator
Radioligand
Radioluminescence
Radiolysis
Radiometric analysis
Radiometric assay
Radiometric titration
Radionuclide
Radionuclidic purity
Radio-
pharmaceutical
Radiopharmacology
Radiopolarography
Radioreagent
Radiorelease analysis
Radioreceptor analysis
Radioreceptor assay
(Radiothermo-
chromagography)
Radiothermo-
luminescence
Radiotoxicity
Radiotracer technique
Radwaste
Raffinate
Random coincidence
Range
Range, extrapolated
Range, mean linear
Range, mean mass
Range, residual
Range-energy relation
Range straggling
Rare earth
RAST
Ratemeter
RBE
RBS
RCP
Reaction, nuclear
Reaction energy
Reaction chain activation
Reactor, nuclear
Receptor
Recoil
Recoil atom
Recovery
REE
Reference material
Relative atomic mass
Relative biological effectiveness
Relative counting
Rem
Resolution
Resolution enhancer
Resolving power
Resolving time
Resolving time, coincidence
Resolving time correction
Resonance
Resonance energy
Resonance integral
Rest mass
Retention
Reversed phase chromatography
RIA
RNAA
Roentgen
Roentgen equivalent man (rem)
RRA
RSMR
Rutherford
Rutherford backscattering spectroscopy
Rutherford scattering spectroscopy

Safeguards
Salting out
Sargent curves
Sargent diagram
Saturation
Saturation activity
Saturation analysis
Saturation correction
Scaler
Scaling circuit
Scatchard plot
Scattering
Scattering, Compton
Scattering, elastic
Scattering, inelastic
Scattering recoil coincidence spectrometry
Scavenger
Scavenging
Scintigram
Scintillant
Scintillating material
Scintillation
Scintillation cocktail
Scintillation counter
Scintillation crystal
Scintillation detector
Scintillation spectrometer
Scintillator
Scintiplast
Scission
Scrubing
Sealed source
Secondary particle activation analysis
Secondary radiation
Secular equilibrium
Segre curve
Self-absorption
Self-absorption factor
Self-radiolysis
Self-shielding
Semiconductor
Semiconeductor detector
Semiconductor detector, diffused junction
Semiconductor detector, P. I. N.
Semiconductor detector, surface barrier
Sensitive volume of a detector
Sensitivity
Separation energy
Separation, radiochemical
Sequestering agent
Serial dilution
Series, radioactive
SF
Shadowing
Shielding
Sievert
Sigmoid curve
Si(Li) detector
Single channel pulse height analyzer
Single comparator method
(Slowpoke reactor)
SNAP
SNR
Soft radiation
Solid state track detector
Solute
Solvent
Solvent extraction
Sorbent
Sorption
Source efficiency
Source, extended
Source, point
Source, radioactive
Source, sealed
Source strength
Source, voluminous
Spallation product
Spallation reaction
Special nuclear material
Speciation
Specific activity
Specific burn-up
Specific energy
Specific ionization
Specificity
SPECT
Spectral hardening
Spectrogram
Spectrograph
Spectrometer
Spectrometer, alpha
Spectrometer, anti-Compton gamma-ray
Spectrometer, beta
Spectrometer, crystal diffraction
Spectrometer, gamma-ray
Spectrometer, scintillation
Spectrometer, x-ray
Spectrum (,radiation)
Spectrum analysis
Spectrum, measured
Spike
Spiking
Spill
Spin, nuclear
Spinthariscope
Spontaneous fission
SRA
SRCS
SSE-IDA
SSTD
Stable
Standard material
Standard reference material
Star
Stopping power
Straggling
Stripping
Strontium unit
Subequivalence isotope dilution
Substoichiometric radiochemical analysis
Sub-trace analysis
Sum peak
Sum peak method
Superequivalence isotope dilution
Superheavy element
Supernatant
Surface barrier semiconductor detector
Survey meter
Sv
Synchrocyclotron
Synchrotron
Synchrotron radiation
Synergism
Synroc
Szilard-Chalmers effect

TAC
Tagged
Tandem accelerator
Target
Target chemistry
Targetry
TBP
TDMES
TDPAC
Thermal column
Thermal fission
Thermal ionization mass spectrometry
Thermochromatogram
Thermochromatograph
Thermochromatography
Thermoluminescence
Thermoluminescent detector
Thick target yield
Thorium series
Threshold energy
Time constant
Time-of-flight
Time-to-amplitude converter
Titer (in radioimmunoassays)
Titration, radiometric
Titre (in radioimmunoassays)
TLD
TOF
Total absorption peak
Townsend avalanche
Tracee
Tracer
Tracer, generally labeled
Tracer, intrinsic
Tracer, isotopic
Tracer, nominally labeled
Tracer, specifically labeled
Tracer, stereospecifically labeled
Tracer,uniformly labeled
Track, nuclear
Track detector, nuclear
Track etching
Transactinides
Transactinoids
Transformation, nuclear
Transient equilibrium
Transition, isomeric
Transition, nuclear
Transmutation
Triga reactor
Triple-monitor method
Tritiation
Tritium (breeding) ratio
Triton
TTA

Ultratrace analysis
Unsealed source
Unstable
Uranium series

Van de Graaf accelerator

Waste, high-level
Waste, low-level
Well detector
Westcott cross section
Wigner effect
Wilzbach labeling

X-radiation
X-radiation, characteristic
X-ray
X-ray emission analysis, particle induced
X-ray emission analysis, radioisotope induced
X-ray fluorescence
X-ray fluorescence analysis
X-ray fluorescence analysis, energy-dispersive
X-ray fluorescence analysis, wavelength-dispersive
XRF

Yield, fluorescence
Yield, radiochemical