To protect against radiation or provide protection from harmful rays

Force that radiates from a central point in all directions

of radioactive atomic nuclei, to emit alpha, beta, or gamma rays, or neutrons

an object, substance, or device that emits radiation, such as cosmic rays or radioactive materials used in medical treatments and industrial testing

the physical area or range reached by radiation

A process of heat transfer where energy is emitted by a body as electromagnetic waves without the need for a medium.

The process by which electromagnetic energy travels through space or a medium as waves; also refers to the electromagnetic waves themselves.

energy that is transmitted in the form of electromagnetic waves, such as heat or light

radioactivity; radiation; the property of emitting radiation

Heat energy transferred by electromagnetic waves without the need for a medium

The emission of energy as electromagnetic waves in the visible light spectrum

the region or space in which radiation effects are measurable

Rays that spread out in straight lines from a common central point, such as light, heat, or radioactive rays

a device used for measuring the intensity of radiant energy

an instrument used to measure radiation; actinograph

radioactive dust or fallout produced by a nuclear explosion; atomic fallout

The power of radiation emitted or received per unit area or solid angle.

The relative susceptibility of cells, tissues, or organisms to the effects of radiation

The process in which radiation is deflected or spread as it passes through a medium.

radiation wave; radiated wave

a standardized sign or symbol used to indicate the presence of radioactive materials or ionizing radiation

safety measures and procedures used to protect people and the environment from the harmful effects of ionizing radiation

The thermal electromagnetic radiation within or surrounding a body in thermodynamic equilibrium with its environment

radiation that remains after an initial event, such as a nuclear explosion or a chemical reaction

The electromagnetic waves and particles emitted by the sun into space; its distribution on Earth is the primary driver of weather patterns

radioactive material that is permanently sealed in a capsule or bonded in a solid form to prevent leakage

An area with high levels of ionizing radiation; a radioactive hot spot

radiation from natural and artificial sources that is always present in the environment

radiation that carries enough energy to detach electrons from atoms, such as nuclear radiation

radiation released within a very short time of a nuclear reaction

radiation released immediately following a nuclear reaction; prompt radiation

radiation with enough energy to pass through solid matter; penetrating radiation

the property of being resistant to radiation; radiotolerance

The detection and measurement of radiation in a specific area

the chemical decomposition of a substance caused by exposure to ionizing radiation

the amount of radiation absorbed by an object or person; radiation dosage

the rate at which an individual or object receives radiation over a specific period of time

symmetry around a central axis, as in a starfish or flower