Terms beginning with S

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The highest level of exposure allowed or recommended for any hazardous factor (radiation, chemical substance, etc.).  Its purpose is to safeguard against adverse health effects.  For most factors this threshold is a compromise, and does not imply certainty that there may be harmful effects above this level, or no harmful effects below it.קרא עוד >

A measure of the radiation absorbed by the human body. It is measured in units of Watts/kg.קרא עוד >

A semiconductor is a solid material that has intermediate electrical conductivity – between an insulator and a conductor.קרא עוד >

Relatively small wireless devices that constantly transmit digital data of users regarding the consumption of electricity, water, or gas.קרא עוד >

The electromagnetic radiation frequencies (or wavelengths) absorbed or emitted by an atom of a specific element. According to Niels Bohr's atomic theory, radiation is absorbed or emitted at frequencies that match the energy difference between two energy levels of the atom. The frequencies (or wavelengths) absorbed by an atom of a specific element comprise its absorption spectrum, and the frequencies (or wavelengths) emitted by an atom of a specific element comprise its emission spectrum.קרא עוד >

A process that assists in creating uniformity of objects in a given context or field and defines the activities required to create such uniformity.  With respect to non-ionizing radiation, standardization creates a system of coordination between the relevant bodies by means of regulations, guidelines, specifications, measurements, etc.   These measures constitute reference norms for the appropriate use of instruments, to ensure safety and safeguard public health and quality of the environment.  קרא עוד >

A physical or mental characteristic that may be part of the distinct features of a disease or group of diseases.קרא עוד >