ICRP Glossary

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Absorption Type

Accelerated fractionation

Acceptance test

Access Control

Accountability

Action Level

Active (red) bone marrow

Activity median thermodynamic diameter (AMTD)

Activity, A

Acute Exposure

Adventitious

Adventitious Source

Aerodynamic diameter (dae)

Air sampling

Air-kerma rate constant

Air-kerma rate constant (Γδ)

Air-kerma, entrance surface

Air-kerma, incident (Ki)

Air-kerma, product (PKA)

Alimentary tract

Alimentary tract transfer factor, fA

Alpha decay

Alveolar-interstitial region, AI

Angiogenesis

Annihilation photons

Annual dose

Area monitoring

Auger transition

Authorised Discharge

Authorization

Authorized limit

Autoimmune disease

Autonomy

Avalanche

Averted dose

Background dose (rate)

Backscatter Factor (B)

Basal cell

Beneficence

Benthic

Best Available Techniques (BAT)

Beta-minus decay

Beta-plus decay

Bioassay

Bioassay function

Biokinetic model

Biological dosimetry

Biomedical research volunteer

Bioturbation

Bone marrow

Bradycardia

Branching fraction

Bronchial region

Bystander effect

Calibration

Cardiac arrhythmias

Cardiac valve diseases

Cardiomyopathy

Cardioverter-defibrillator

Categories of exposure

Category of exposed individual

Cell death

Chromosome dosimetry

Chronic exposure

Class SR-0 gases

Class SR-1 gases

Class SR-2 gases

Clearance level

Clonogenic cells

Clonogenic survival

Co-expertise

Colony

Committed effective dose, E(τ)

Commodity

Complex tissues

Computed tomography dose index, CTDI

Conditional renewing (complex or flexible) tissues

Confidence limits

Confinement

Connective tissue

Consequential late effects

Constancy test

Consumer product

Contamination

Control measures

Coronary heart disease/congestive heart disease

Cortical (bone) marrow

Cost-benefit analysis

Coster-Kronig (CK) transition

Critical group

Curie, Ci

Cytokines

D0

Decay constant

Decision threshold

Decommissioning

Decontamination

Decontamination factor

Defence-in-depth

Deontological Ethics

Deposition class

Derived consideration reference level

Diastasis

Dichotomous

Differentiation

Dignity

Direct bioassay

Disposal

Disposal Facility

DNA damage signalling

Dose assessment/estimation

Dose constraint

Dose criteria

Dose equivalent in an organ or tissue, HT,Q

Dose limit

Dose Modifying Factor (DMF)

Dose per unit intake, DPUI

Dose rate

Dose rate effectiveness factor, DREF

Dosemeter/dosimeter

Dose-rate effect

Dose–response function (DRF)

Dose-threshold

Dosimetrists

Dysrhythmia

Early effect

Early normal tissue responses

Effect Dose 50 (ED50)

Effective charge number, Z*

Effective dose equivalent, HE

Effective half-life (Teff)

Electron-capture decay

Electrophysiology

Emergency

Emergency exposure situation

Emergency plan

Emergency preparedness

Emergency procedures

Emergency Worker

Endogeneous excretion

Entrance surface dose

Environmental (radiation) monitoring

Environmental exposure

Environmental radiation protection

Epithelium

Equity

Equivalent dose (HT)

Erythropoietin

Ethics

Event tree analysis

Excretion function

Excretion rate

Exempt waste

Exemption level

Existing exposure situation

Exponential survival curve

Exposure

Exposure assessment

Exposure Pathway

Exposure situation

External radiation

Extrapolation number

Extrathoracic airways

Extremity dosemeter

Fairness

Fault tree analysis

Field-size effect

Fixed (surface) contamination

Flexible tissues

Fluoroscopically guided interventions

Forbiddenness

Fractionation

Fractionation sensitivity

Galactic cosmic radiation (GCR)

Gamma ray

Gastrointestinal

Gastrointestinal syndrome

Geochemical phase association

Graded approach

Granulocyte colony-stimulating factor

Granulocyte-macrophage colony-stimulating factor

Growth fraction

Growth hormone (somatotropin)

Habitual mouth breather

Habitual nose breather

Half-life, physical (T1/2)

Hazard

Health Surveillance

Heliosphere

Hierarchical tissues

High level waste, HLW

Hormones

Human Respiratory Tract Model (HRTM)

Hyperbaric oxygen

Hypertrophic cardiomyopathy

Hypoplasia

Immune system

In vivo measurement

Inactive (bone) marrow

Incident

Inclusiveness

Individual decontamination

Individual dose

Individual dose equivalent

Individual dose restriction

Individual monitoring

Individual-related

Individual-related

Individual-related assessment

Informed Consent

Ingestion exposure planning zone, IEPZ

Inhalability

Inhalation class

Initial slope

Inner bremsstrahlung

Institutional control

Intermediate level waste, ILW

Internal conversion electron

Interphase death

Intervention Level

Interventional procedure

Investigation level

Iodine prophylaxis

Iso-effect plots

Isolation

Isomeric transition decay

Isomers

Isotropic geometry

Iteroparous

Itinerant (radiation) worker

Justice

Justification

K, Kp index

Kerma-area product (KAP)

Late effect, delayed effect

Latent time/period or latency interval

Legal person

Legislators

Limit

Limitation of dose

Lineal energy

Linear no-threshold (LNT) hypothesis

Linear-non-threshold (LNT) model

Low Earth orbit (LEO)

Low level waste, LLW

Low toxicity alpha emitter

Lung absorption type

Lymphatic system

Macrophage colony stimulating factor

Magnetosphere

Medical exposure

Medical intervention

Member of the public

Mendelian diseases

Minimum significant activity (MSA)

Mitigation

Monitoring

Multistage tumorigenesis

Myocardial perfusion

Nasal Augmenter

Natural background

Natural environment

Naturally occurring radioactive material (NORM)

Necrosis

Neurological syndrome

Neurovascular syndrome

Non-maleficence

Non-sphericity parameter (η)

Nuclear track detectors

Nuclear transformation

Occupational exposure

Occupationally exposed worker

Edema

Operational intervention level, OIL

Operational monitoring

Optically stimulated luminescence (OSL) dosimeters

Optimisation

Orphan source

Oversight

Particle radiance, Φ ̇Ω

Patient

Patient entrance reference point

Peak skin dose

Pelagic

Percutaneous coronary intervention (PCI)

Pericarditis

Personal air sampling

Personal/Individual Monitoring

Pharynx

Planned exposure situation

Platelet-derived growth factor

Poisson distribution

Potential exposure

Practical radiological protection culture

Precautionary principle

Precautionary principle

Prevailing circumstances

Primary limit

Primordial radionuclides

Principle of application of dose limits

Principle of justification

Principle of optimisation

Procedural values

Progenitor cell

Prognosis

Programmed cell death

Projected dose

Prophylaxis

Prospective dose assessment

Protection strategy

Protective action

Protective action guide, PAG

Protective clothing

Prudence

Public exposure

Qualified expert

Rad

Radiation belt

Radiation detriment

Radiation dose

Radiation level

Radiation modifier

Radiation protection programme

Radiation safety officer, RSO

Radiation Source

Radiation worker

Radioactive contamination

Radioactive dispersion device (RDD)

Radioactive source

Radioactive substance

Radioactivity

Radiofrequency ablation

Radiographer

Radiological Controlled Area

Radiological practice in medicine

Radiological protection principles

Radiological survey

Radionuclides of natural origin

Radioresponsiveness

Radiosensitiser

Radiosensitivity, cellular

Radon

Random error

Reasonableness

Recording level

Recovery

Recovery responder

Red (bone) marrow

Reference level

Reference Man

Regulation

Regulator

Rehabilitation

Rehabilitation of living conditions

Relocation

Rem

Remedial action

Remediation

Repopulation

Representative organism (non-human biota)

Representative person

Reproductive integrity

Residual dose

Respiratory protection

Retention function

Retrievability

Retrospective dose assessment

Reversibility

Right to know

Rigidity threshold

Rigidity, R

Risk constraint

Roentgen, R

Routine monitoring

Safety analysis

Safety case

Safety culture

Scintigraphy

Self-help protection

Semelparous

Senescence

Sensitivity analysis

Slow repair

Soft tissue

Solar cosmic radiation

Solar cycle

Solar particle event

Solar wind

Source monitoring

Source term

Source-related

South Atlantic anomaly

Special (non-routine) monitoring

Species

Specific activity

Spontaneous fission

Stakeholder

Stenosis

Storage

Stress test

Stroke

Subcutaneous tissue

Substantial radiation dose level (SRDL)

Supervised Area

Syndrome

System of radiological protection

Systemic model

Tachycardia

Target cell

Target tissue (T)

Task-related monitoring

Telangiectasia

Thermodynamic diameter

Thermoluminescence detector

Thoron

Threshold dose for tissue reactions

Thyroid blocking

Time factor

Tissue equivalent material

Tissue-rescuing unit

Tolerability

Total dose

Trabecular (bone) marrow

Track structure

Transfer coefficient

Transfer compartment

Transforming growth factor (TGF)

Transit cells

Transition

Transparency

Trapped particles

Type F materials

Type M materials

Type of exposure situations

Type S materials

Type V materials

Unsealed source

Utilitarian ethics

Value judgement

Valvular heart disease

Virtue ethics

Volume effect

Waste disposal

Weighted CTDI

Whole body counter, WBC

Wisdom

Workers' health surveillance

X ray

Xerostomia

Yellow (bone) marrow