particle

elementary particle

antiparticle

corpuscle

quantum

photon

electron

positron

neutrino

proton

neutron

nucleon

muon

meson

pion

kaon

hyperon

atom

nuclide

(atomic) nucleus

isotope

isobar

isotone

fertile nuclide

fertile material

fissile nuclide

fissile material

fissionable nuclide

deuteron

triton

alpha particle

beta particle

fission fragments

ion

directly ionizing particle

indirectly ionizing particle

aerosol

particulate

dust

space charge

aerodynamic equivalent diameter

thermodynamic equivalent diameter

radiation

radiation field

ionizing radiation

radiation physics

monoenergetic radiation

beam

alpha radiation

beta radiation

gamma radiation

X radiation

background radiation

cosmic radiation

annihilation radiation

nuclear radiation

corpuscular radiation

bremsstrahlung

characteristic radiation

continuous X radiation

primary radiation

secondary radiation

delta radiation

Cerenkov radiation

radiation source

radioactive source

sealed source

radioactive standard source

certified radioactive standard source

traceable radioactive standard source

emitting surface of radiation source

radioactive source substrate

sealed source simulator

simulated source

generator of radioactive aerosols

nuclear transformation

radioactive disintegration

nuclear disintegration

nuclear transition

(nuclear) fission

spontaneous fission

thermal fission

fast fission

nuclear fusion

radioactivity

natural radioactivity

induced radioactivity

radioactive material

radioactive contamination

radioactive decay

decay curve

radionuclide

radiation emitter

radioisotope

natural radioelement

artificial radioelement

radioactive tracer

radioactive series

radioactive equilibrium

daughter product

secondary electron

Auger electron

internal conversion

internal conversion coefficient

conversion electron

orbital electron capture

exoelectron

Compton electron

photoelectron

photoneutron

fission neutron

prompt neutron

delayed neutron

fast neutron

slow neutron

intermediate neutron

resonance neutron

epicadmium neutron

subcadmium neutron

epithermal neutron

thermal neutron

binding energy

thermionic emission

field emission

nuclear reaction

nuclear chain reaction

convergent reaction

divergent reaction

critical reaction

ionization

linear ionization (in nuclear instrumentation)

ionizing event

recombination

photonuclear reaction

activation

scattering

coherent scattering

incoherent scattering

elastic scattering

inelastic scattering

radiative inelastic scattering

thermal inelastic scattering

backscatter

capture

radiative capture

annihilation

(energy) absorption

(particle) absorption

attenuation

geometric attenuation

Compton effect

(electron) pair production

photoelectric effect

charged particle equilibrium

Cerenkov effect

Mössbauer effect

Wigner effect

neutron multiplication

moderation

neutron diffusion

(neutron) albedo

excitation

irradiation

radiation preservation

radiation sterilization

transmutation

Auger effect

elastic collision

inelastic collision

channeling

radiation damage

nuclear magnetic resonance

self-irradiation

spallation reaction

plasma

ignition temperature (for plasma)

Debye length

branching ratio

potential alpha energy of short lived decay products

energy spectrum (of an ionizing radiation)

nucleon number

proton number

neutron number

effective atomic number

mole

Avogadro constant

elementary (electric) charge

Planck constant

unified atomic mass unit

rest mass

stochastic quantity

activity

becquerel

curie (deprecated)

massic activity

volumic activity

surface activity

decay constant

radioactive half-life

mean life

electronvolt

(particle) current density

neutron density

radiant energy

(particle) fluence

(particle) fluence rate

(particle) flux

energy fluence

energy fluence rate

energy flux

diffusion coefficient (for neutron fluence rate)

nuclear energy

fission energy

fission spectrum

fission yield

primary fission yield

cross-section

barn (deprecated)

microscopic cross-section

macroscopic cross-section

attenuation coefficient

attenuation factor

total linear attenuation coefficient

mass attenuation coefficient

mass energy transfer coefficient

absorption coefficient

mass energy absorption coefficient

total linear stopping power

linear collision stopping power

linear radiation stopping power

total mass stopping power

collision mass stopping power

linear energy transfer

mean energy expended per ion pair formed (in a material)

volume ion density

linear ion density

exposure (1)

exposure (2)

roentgen (deprecated)

energy imparted (to matter in a volume)

mean energy imparted

linear energy (imparted)

specific energy (imparted)

absorbed dose

kerma

gray

rad (deprecated)

absorbed dose rate

kerma rate

air kerma

kerma factor

dose equivalent

sievert

rem (deprecated)

dose equivalent rate

isodose

quality factor (for radiation protection purposes)

tissue equivalent material

tissue equivalence (for X, gamma and neutron radiation)

tissue equivalence (for beta radiation)

mass per unit area

exposure rate coefficient

radiant energy density

radiant energy exposure

displacement per atom

mean free path

surface emission rate (for a radioactive source)

saturation layer thickness (for a radioactive source constructed of a homogeneous radio-active material)

source efficiency

disintegration energy

energy loss by radiative process (for a charged particle)

buildup factor

dose

effective dose equivalent

ambient dose equivalent

directional dose equivalent

personal dose equivalent

conventionally true surface emission rate

exposure rate

(nuclear) reactor

slowing-down area

slowing-down length

diffusion area

diffusion length

migration area

migration length

lethargy (of a neutron)

average logarithmic energy decrement

slowing-down power

neutron energy group

multi-group model

generation time

neutron cycle

neutron economy

conventional fluence rate

disadvantage factor

divergence (for a nuclear chain reaction)

reactor time constant

critical, qualifier

delayed critical, qualifier

prompt critical, qualifier

criticality

critical experiment

critical equation

critical mass

critical size

relative importance

importance function

iterated fission expectation

critical reactor

(subcritical) multiplication

exponential experiment

exponential assembly

material buckling

geometric buckling

multiplication factor

infinite multiplication factor

effective multiplication factor

neutron yield per absorption

fast fission factor

reactivity

negative reactivity

reactivity temperature coefficient

burn-up

burn-up fraction

specific burn-up

specific power

depletion

enrichment (1)

enrichment (2)

enrichment factor

degree of enrichment

conversion (for fertile substances)

conversion ratio

breeding

breeding ratio

breeding gain

nuclear poison

burnable poison

xenon effect

supercritical reactor

subcritical reactor

physical power (for a nuclear reactor)

energy release (for a nuclear reactor)

after-heat

extrapolated boundary

neutron burst

resonance escape probability

residual power

power coefficient

reaction rate

control rod

homogeneous reactor

heterogeneous reactor

natural uranium reactor

enriched fuel reactor

plutonium reactor

fluidized reactor

circulating reactor

fast reactor

intermediate reactor

epithermal reactor

thermal reactor

converter reactor

breeder reactor

spectral shift reactor

power reactor

research reactor

experimental reactor

production reactor

pressurized water reactor

boiling water reactor

accelerator driven system

pressure tube reactor

tank reactor

dual-cycle reactor

heavy water reactor

integral exchanger reactor

gas cooled reactor

high temperature reactor

nuclear fuel

enriched material

fuel element

fuel slug

fuel rod

cladding

can

plug (1)

plug (2)

fuel assembly

fuel channel (in pressure tube reactor)

charge

multiplying medium

core (for a nuclear reactor)

cell

nuclear reactor lattice

blanket

beam hole

irradiation channel

moderator

reflector

primary coolant circuit

secondary coolant circuit

containment

shield (for a nuclear reactor)

thermal shield

(biological) shield

streaming

self-shielding

skyshine

reactor vessel

neutron converter

nuclear reactor control

configuration control

fuel control

moderator control

fluid poison control

reflector control

neutron absorber

self-regulation (in nuclear reactor)

fine control

shimming

scram

source range

counter range

operating range

power range

time constant range

radiation leakage (in a nuclear reactor)

mixed oxide fuel

hot shutdown

cold shutdown

fuel cycle

film boiling

denting

burnout

barrier (for a nuclear reactor)

void fraction

safety injection

subcooled

superheated

void

process fluid

local operator

operating procedure

operational interaction

performance requirement

plant operational goals

task

task analysis

leak

(liquid) leakage

(liquid) abnormal leakage

(liquid) allowable leakage

(liquid) identified leakage

(liquid) leakage rate

(liquid) unidentified leakage

reactor coolant

malfunction

nuclear security (for a nuclear power plant)

nuclear safety

alarm

maintenance bypass (for safety system)

emergency response facility

functional sequence

operational crew

hot (in nuclear)

fuel burn-out

accident conditions (for a nuclear power plant)

normal operation

operational bypass

clad failure

loading

unloading

fuel cooling installation

reprocessing (for an irradiated fuel)

anticipated operational occurrence

common cause failure

items important to safety

postulated initiating event

protective action (in nuclear safety)

safety action

protective function

safety function

safety task

single failure criterion

supplementary control point (in nuclear safety)

trip (for a nuclear reactor)

spurious shutdown

confidence level

design life (of equipment)

qualified life (of equipment)

operational conditions (of equipment)

installed life (of equipment)

qualification margin (of equipment)

useful life (for a sensor)

equipment qualification

environmental conditions

monitoring

ageing

accelerated ageing

intrinsic safety

nuclear power station

hot radiochemical laboratory

decontamination

decontamination factor

severe accident (for a nuclear power plant)

design basis accident

reactor containment

defence in depth (in plant design)

functional analysis

job analysis

local control point

reactor coolant and associated systems (for boiling and pressurized water reactors)

control room

load factor (for a nuclear power plant)

safety analysis

house load operation

redundancy

safety group (for a nuclear reactor)

radiation accident

external exposure

internal exposure

whole body exposure

partial body exposure

local body exposure

public exposure

collective dose

ALARA

radiation protection guide

protective action (in radiation protection)

radiation protection survey

controlled area

emergency plan

tissue weighting factor

low toxicity alpha emitter

surface contaminated object

waste

radioactive waste

radioactive release

radioactive decontamination

radioactive waste repository

permanent nuclear facility shutdown

decommissioning

dismantling

clearance levels

embedding

storage

long lived waste storage

(radioactive) waste management

site rehabilitation

vitrification (of radioactive waste)

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