Background radiation. The natural radiation that is always present in the
environment. It includes cosmic radiation which comes from the sun and stars,
Sep 30, 2015 ... This natural radiation that is always present is known as “background” radiation.
Background levels can vary greatly from one location to the ...
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: Radiation that comes from environmental sources
including the earth's crust, the atmosphere, cosmic rays, and radioisotopes.
A secondary school revision resource for AQA Additional GCSE Science about
atoms, radiation and nuclear radiation.
Background radiation definition at Dictionary.com, a free online dictionary with
pronunciation, synonyms and translation. Look it up now!
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 ...
Background radiation mainly comes from natural sources, which include cosmic
rays, soil and rocks and living things, according to the BBC. Artificial radiation ...
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 ...
This lesson will define background radiation, explain how it is measured, discuss
some of the sources and examples of background radiation, and...