Radiation hazards

Radiation hazards

Terms related to radiation and its hazards.

Industry: Environment

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Radiation hazards

as low as reasonably achievable (ALARA)

Environment; Radiation hazards

Making every reasonable effort to maintain exposures to ionizing radiation as far below the dose limits as practical, consistent with the purpose for which the licensed activity is undertaken. It ...

alpha particle

Environment; Radiation hazards

A positively charged particle ejected spontaneously from the nuclei of some radioactive elements. It is identical to a helium nucleus, with a mass number of 4 and a charge of +2.

annual limit on intake (ALI)

Environment; Radiation hazards

Annual intake of a given radionuclide by "Reference Man" which would result in either a committed effective dose equivalent of 5 rems or a committed dose equivalent of 50 rems to an organ or tissue.

attenuation

Environment; Radiation hazards

The process by which radiation is reduced in intensity when passing through some material. It is the combination of absorption and scattering processes.

Japanese nuclear industry

Environment; Radiation hazards

Since the March 11, 2011 tsunami and nuclear plant crisis in Japan, all but 2 of the 54 nuclear reactors have been closed down to prevent future meltdowns. The plants are planned to be slowly ...