Radiation hazards

Radiation hazards

Terms related to radiation and its hazards.

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Radiation hazards

Greenhouse effect

Environment; Radiation hazards

The greenhouse effect occurs when the thermal energy reflected by the Earth to the atmosphere (from the sun) is absorbed by the greenhouse gases on it. Due to this, the radiation goes again to the ...

Sodium iodide (NaI) detector

Environment; Radiation hazards

A detector which combines a scintillation crystal (produces light when struck by ionising radiation), a photomultiplier tube, and associated electronic circuits for counting light emissions produced ...

Nuclide

Environment; Radiation hazards

A general term referring to all known isotopes, both stable (~279) and unstable (~5000), of the chemical elements.

Isotope

Environment; Radiation hazards

One of two or more atoms with the same number of protons, but different number of neutrons, in their nuclei. Example: 12C, 13C, and 14C are isotopes of the same element. Isotopes have very nearly ...

Ionising radiation

Environment; Radiation hazards

Any radiation capable of displacing electrons from atoms or molecules, producing ions. Examples: alpha, beta, gamma, x-rays, neutrons, and ultraviolet light. High doses may produce severe skin or ...

Liquid scintillation counting

Environment; Radiation hazards

A method of determining activity of a radioactive sample using a liquid Fluor and a means of detecting the scintillation resulting from the interaction of radiation with the Fluor.

Ionisation chamber

Environment; Radiation hazards

An instrument that detects and measures ionising radiation by measuring the electrical current that flows when radiation ionises gas in a chamber, making the gas a conductor of electricity.