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Radiation hazards

Terms related to radiation and its hazards.

Contributors in Radiation hazards

Radiation hazards

cumulative dose

Environment; Radiation hazards

The total dose resulting from repeated exposures of radiation to the same region, or to the whole body, over a period of time.

curie (Ci)

Environment; Radiation hazards

The basic unit used to describe the intensity of radioactivity in a sample of material. The curie is equal to 37 billion disintegrations per second, which is approximately the rate of decay of 1 ...

radioactive decay

Environment; Radiation hazards

The decrease in the amount of any radioactive material with the passage of time, due to the spontaneous emission from the atomic nuclei of either alpha, beta particles, or gamma rays.

declared pregnant worker

Environment; Radiation hazards

A woman who has voluntarily informed her employer, in writing, of her pregnancy and the estimated date of conception.

decontamination

Environment; Radiation hazards

The reduction or removal of contaminating radioactive material from a structure, area, object, or person.

deep dose equivalent

Environment; Radiation hazards

A term that applies to external whole-body exposure, and is the dose equivalent at a tissue depth of 1 cm.

detector

Environment; Radiation hazards

A material or device that is sensitive to radiation and can produce a signal suitable for measurement or analysis. A radiation detection instrument.

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