Radiation hazards

Radiation hazards

Terms related to radiation and its hazards.

Industry: Environment

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Radiation hazards

radioactivity

Environment; Radiation hazards

The spontaneous emission of radiation, generally alpha particles, beta particles, or gamma rays from the nucleus of an unstable isotope.

radioisotope

Environment; Radiation hazards

An unstable isotope of an element that decays or disintegrates spontaneously, emitting radiation.

rem

Environment; Radiation hazards

The special unit for dose equivalent. The dose equivalent in rem is equal to the absorbed dose in rads, multiplied by the quality factor.

roentgen (R)

Environment; Radiation hazards

A unit of exposure to ionizing radiation. It is that amount of gamma or x-rays required to produce ions carrying 1 electrostatic unit of electrical charge in 1 cubic centimeter of dry air under ...

restricted area

Environment; Radiation hazards

An area, access to which is limited by the licensee for the purpose of protecting individuals against undue risks from exposure to radiation or radioactive materials. Restricted area does not ...

scintillation detector

Environment; Radiation hazards

A radiation detection instrument comprised of a phosphor, photomultiplier tube(s), and associated electronic circuits for counting light emissions produced in the phosphor by ionizing radiation.

Radioactive material that is permanently bonded or fixed in a capsule or matrix designed to prevent release and dispersal under the most severe conditions which are likely to be encountered in normal ...