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NRC: Glossary -- Background radiation

www.nrc.gov/reading-rm/basic-ref/glossary/background-radiation.html

Background radiation. The natural radiation that is always present in the environment. It includes cosmic radiation which comes from the sun and stars, terrestrial ...

NRC: Natural Background Sources

www.nrc.gov/about-nrc/radiation/around-us/sources/nat-bg-sources.html

Natural background radiation comes from the following three sources: ... The sun and stars send a constant stream of cosmic radiation to Earth, much like a ...

What is Background Radiation? - World Nuclear Association

www.world-nuclear.org/uploadedFiles/org/Features/Radiation/4_Background_Radiation(1).pdf

Naturally-occurring background radiation is the main source of exposure for most ... background radiation gives an annual dose of more than 50 mSv and up.

Background radiation definition - MedicineNet - Health and Medical ...

www.medicinenet.com/script/main/art.asp?articlekey=24436

Background radiation: Radiation that comes from environmental sources including the earth's crust, the atmosphere, cosmic rays, and radioisotopes. Natural ...

Background radiation | Define Background radiation at Dictionary.com

www.dictionary.com/browse/background-radiation

Background radiation definition at Dictionary.com, a free online dictionary with pronunciation, synonyms and translation. Look it up now!

BBC - GCSE Bitesize: Background radiation

www.bbc.co.uk/schools/gcsebitesize/science/add_aqa/atoms_radiation/nuclearradiationrev1.shtml

A secondary school revision resource for AQA Additional GCSE Science about atoms, radiation and nuclear radiation.

Natural background radiation - ANSTO

www.ansto.gov.au/NuclearFacts/AboutNuclearScience/NaturalBackgroundRadiation/index.htm

In Australia people receive about 1.5 - 2.0 'millisieverts' of ionising radiation every year. This is natural background radiation. Low exposure to ionising radiation ...

BBC - GCSE Bitesize: Background radiation

www.bbc.co.uk/schools/gcsebitesize/science/add_ocr_gateway/radiation/radioisotopesrev1.shtml

A secondary school revision resource for OCR Gateway Additional GCSE Science about radiation and uses of radioisotopes.

Background Radiation - Pass My Exams: Easy exam revision notes ...

www.passmyexams.co.uk/GCSE/physics/background-radiation.html

This radiation is called background radiation. Most of the background radiation the body is exposed to is from natural sources and is called natural background ...

Natural background radiation - Canadian Nuclear Safety Commission

nuclearsafety.gc.ca/eng/resources/fact-sheets/natural-background-radiation.cfm

Nov 19, 2014 ... The annual average effective dose from natural background radiation is approximately 1.8 millisieverts (mSv) in Canada and 2.4 mSv ...

Answers
Background radiation
Background radiation is the ubiquitous ionizing radiation present in the environment. Background radiation originates from a variety of sources, both natural and ... More »
background radiation | Define background radiation at Dictionary.com
dictionary.reference.com/browse/background radiation
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