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background radiation

   Also found in: Medical, Encyclopedia, Wikipedia, Hutchinson 0.02 sec.
Nuclear (or ionizing) radiations arising from within the body and from the surroundings to which individuals are always exposed.
ThesaurusLegend:  Synonyms Related Words Antonyms
Noun1.background radiation - radiation coming from sources other than those being observed
background signal, background - extraneous signals that can be confused with the phenomenon to be observed or measured; "they got a bad connection and could hardly hear one another over the background signals"
Translations
background radiation
n (Phys) → natürliche Strahlung f
background radiation nradiazione f di fondo
background radiation nradiazione f di fondo


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And it just so happens that 1965 was also the year of the discovery of cosmic background radiation, the first physical evidence of the big bang, which made front-page news.
This is a delayed coincidence experiment, so only accidental coincidences from background radiation will appear as background events in the data.
The average annual effective dose from natural background radiation in the United States is estimated to be approximately 3 mSv (300 mrem) [Committee on the Biological Effects of Ionizing Radiation (BEIR V) 1990].
 
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