What's the meaning of the Non-ionizing radiation sign »
Non-ionizing radiation sign
This page is about the meaning, origin and characteristic of the symbol, emblem, seal, sign, logo or flag: Non-ionizing radiation sign.
Non-ionizing radiation sign
Non-ionizing (or non-ionising) radiation refers to any type of electromagnetic radiation that does not carry enough energy per quantum to ionize atoms or molecules—that is, to completely remove an electron from an atom or molecule. Instead of producing charged ions when passing through matter, the electromagnetic radiation has sufficient energy only for excitation, the movement of an electron to a higher energy state. The region at which radiation becomes considered as "ionizing" is not well defined, since different molecules and atoms ionize at different energies. The usual definitions have suggested that radiation with particle or photon energies less than 10 electronvolts (eV) be considered non-ionizing. Another suggested threshold is 33 electronvolts, which is the energy needed to ionize water molecules. The light from the Sun that reaches the earth is largely composed of non-ionizing radiation, since the ionizing far-ultraviolet rays have been filtered out by the gases in the atmosphere, particularly oxygen. The remaining ultraviolet radiation from the Sun is in the non-ionizing band, and causes molecular damage (for example, sunburn) by photochemical and free-radical-producing means that do not ionize.
- 1,091 Views
Graphical characteristics:
Symmetric, Closed shape, Colorful, Contains both straight and curved lines, Has no crossing lines.
Category: Hazard Symbols.
More symbols in Hazard Symbols:
Hazard symbol are recognizable symbols designed to warn about hazardous materials, locations, or objects, including electric currents, poisons, and other things. The use of hazard symbols is often re… read more »
Citation
Use the citation below to add this symbol to your bibliography:
Style:MLAChicagoAPA
"Non-ionizing radiation sign." Symbols.com. STANDS4 LLC, 2024. Web. 24 Dec. 2024. <https://www.symbols.com/symbol/non-ionizing-radiation-sign>.
Have a discussion about Non-ionizing radiation sign with the community:
Report Comment
We're doing our best to make sure our content is useful, accurate and safe.
If by any chance you spot an inappropriate comment while navigating through our website please use this form to let us know, and we'll take care of it shortly.
Attachment
You need to be logged in to favorite.
Log In