Radiation hazards

Radiation hazards

Terms related to radiation and its hazards.

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Radiation hazards

eye dose equivalent

Environment; Radiation hazards

Applies to the external exposure of the lens of the eye and is taken as the dose equivalent at a tissue depth of 0. 3 cm.

gamma ray

Environment; Radiation hazards

Relatively short wavelength electromagnetic radiation released from the nucleus of an atom.

Geiger-Mueller counter (GM)

Environment; Radiation hazards

A radiation detection instrument that can detect alpha, beta and gamma radiation; response is not energy dependent.

The time in which half the atoms of a particular radioactive substance disintegrate to another nuclear form. Measured half lives vary from millionths of a second to billions of years. Also referred ...

half value layer

Environment; Radiation hazards

The thickness of any given absorber (shield) that will reduce the intensity of incident radiation to one half of its initial value.

health physics

Environment; Radiation hazards

The science concerned with recognition, evaluation, and control of health hazards from non-ionizing and ionizing radiation.

high radiation area

Environment; Radiation hazards

An area, accessible to individuals, in which radiation levels could result in an individual receiving a dose equivalent in excess of 0. 1 mrem in 1 hour at 30 cm from the radiation source or from any ...