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→About Background Radiation
: Miners are exposed to a higher than [[Mean Average|average]] level of '''background radiation''' because many rocks are sources of [[Ionising Radiation|ionising radiation]].
: Hospital workers are exposed to a higher than [[Mean Average|average]] level of '''background radiation''' because sources of [[Ionising Radiation|ionising radiation]] are used in medical imaging.
===References===
====AQA====
:[https://www.amazon.co.uk/gp/product/1782945970/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945970&linkCode=as2&tag=nrjc-21&linkId=a120d24dcc7cc7a58192069a3aafc1d2 ''Background radiation, pages 135, 136, GCSE Physics; The Complete 9-1 Course for AQA, CGP, AQA '']
:[https://www.amazon.co.uk/gp/product/178294558X/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=178294558X&linkCode=as2&tag=nrjc-21&linkId=f0dfb66dafcb0c6e9449e7b1a4ae1ac28 ''Background radiation, pages 46, 47, GCSE Physics; The Revision Guide, CGP, AQA '']
:[https://www.amazon.co.uk/gp/product/1471851370/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1471851370&linkCode=as2&tag=nrjc-21&linkId=01c69b0ae058f809cf636033e6ba793e ''Background radiation, pages 96, 97, GCSE Physics, Hodder, AQA '']
:[https://www.amazon.co.uk/gp/product/1471851370/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1471851370&linkCode=as2&tag=nrjc-21&linkId=01c69b0ae058f809cf636033e6ba793e ''Background; correction for, page 100, GCSE Physics, Hodder, AQA '']
====Edexcel====
:[https://www.amazon.co.uk/gp/product/1782948163/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782948163&linkCode=as2&tag=nrjc-21&linkId=0fdbfd5dd397d6e24a9dfb250f08587f ''Background radiation, page 164, GCSE Physics, CGP, Edexcel']
:[https://www.amazon.co.uk/gp/product/1782945741/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945741&linkCode=as2&tag=nrjc-21&linkId=30da4f2178da182547b62a7329d13b57 ''Background radiation, page 177, GCSE Combined Science; The Revision Guide, CGP, Edexcel']
:[https://www.amazon.co.uk/gp/product/1782945733/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945733&linkCode=as2&tag=nrjc-21&linkId=2a2dbec9db6bf5766c0458d908fa0a52 ''Background radiation, page 54, GCSE Physics; The Revision Guide, CGP, Edexcel']
:[https://www.amazon.co.uk/gp/product/1292120193/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1292120193&linkCode=as2&tag=nrjc-21&linkId=572df39392fb4200db8391d98ae6314e ''Background radiation, pages 360-361, GCSE Combined Science, Pearson Edexcel']
:[https://www.amazon.co.uk/gp/product/1292120223/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1292120223&linkCode=as2&tag=nrjc-21&linkId=068ecf40278c32406a7f1c6e66751417 ''Background radiation, pages 96-97, GCSE Physics, Pearson Edexcel']
====OCR====
:[https://www.amazon.co.uk/gp/product/0198359837/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=0198359837&linkCode=as2&tag=nrjc-21&linkId=3c4229e8b023b2b60768e7ea2307cc6f ''Background radiation, pages 182, 236-237, Gateway GCSE Physics, Oxford, OCR '']
==Key Stage 5==
===Meaning===
[[Background Radiation|Background radiation]] is [[Ionising Radiation|radiation]] due to naturally occurring [[radioactive]] substances in the environment.
===About Background Radiation===
*[[Background Radiation|Background radiation]] comes from sources such as the ground, building materials, and [[Cosmic Radiation|cosmic radiation]].
*[[Background Radiation|Background radiation]] is [[measure]]d in units of [[Becquerel]]s (Bq).
*[[Background Radiation|Background radiation]] contributes to the [[radiation]] dose received by humans.
*[[Background Radiation|Background radiation]] levels vary with location due to local geological features and altitude due to the [[Earth's Atmosphere|atmosphere]] blocking [[Cosmic Ray|cosmic rays]].
*[[Background Radiation|Background radiation]] is a baseline level of [[Ionising Radiation|radiation]] that must be accounted for in [[Ionising Radiation|radiation]] measurements.
*[[Background Radiation|Background radiation]] is generally low but can be higher in areas with significant natural [[radioactive]] deposits.
===Examples===
*[[Radon]] [[gas]] from the soil contributes to indoor [[Background Radiation|background radiation]].
*[[Cosmic Rays|Cosmic rays]] from space add to the background [[Ionising Radiation|radiation]] level.
==Beyond the Curriculum==
{{#ev:youtube|https://www.youtube.com/watch?v=r1msbupjv08}}