Background radiation (Edexcel GCSE Physics): Flashcards
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Background radiation
Background radiation
Ionising radiation naturally present in environment
Cosmic rays
Cosmic rays
Radiation from space, sun and other stars
Radon gas
Radon gas
Radioactive gas seeping from ground
Radioactive material in rocks and soil
Radioactive material in rocks and soil
Uranium
Radioactive element in food
Radioactive element in food
Potassium-40
Artificial radiation sources (examples)
Artificial radiation sources (examples)
Medical procedures, nuclear power stations
Radiation dose unit
Radiation dose unit
Sieverts (Sv)
Smaller radiation dose unit
Smaller radiation dose unit
Millisieverts (mSv)
Irradiation
Irradiation
Exposure to radiation from a nearby source
Does irradiation make object radioactive?
Does irradiation make object radioactive?
No
Prevent irradiation: storage method
Prevent irradiation: storage method
Lead-lined boxes
Monitor worker radiation exposure
Monitor worker radiation exposure
Photographic film badges
Prevent irradiation: distance handling
Prevent irradiation: distance handling
Remote-controlled arms
Contamination
Contamination
Radioactive particles on or inside object/person
Prevent contamination: handling tools
Prevent contamination: handling tools
Gloves and tongs