radiation filter

radiation filter

[‚rād·ē′ā·shən ‚fil·tər]
(electromagnetism)
Selectively transparent body, which transmits only certain wavelength ranges.
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References in periodicals archive ?
* Do you know that using a radiation filter and radiation protection glasses will eliminate more than 90% of the radiation;
This natural salt (iodide) found in certain foods acts as a radiation filter, preventing its uptake by the thyroid glands and shielding our glandular system and organs from electromagnetic damage.
The ad, for a 'Waveshield' mobile phone radiation filter, made a number of claims including that the product reduced, blocked, absorbed, and deflected up to 97% of electromagnetic radiation from entering the inner ear; and that tests on Waveshield established a reduction of up to 97% in the strength of the magnetic field emitted from the phone earpiece.
With recent recognition that certain pollutants are eroding this natural radiation filter, researchers have raced against the clock to find substitutes for the chlorofluorocarbons and other compounds responsible.
Paul Gunter, director of Reactor Oversight Project at Beyond Nuclear, had blasted the NRC earlier for installing containment vents without radiation filters at the nation's Fukushima-style nuclear power plants.

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