P2d   Radiation
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P2d Radiation

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    P2d   Radiation P2d Radiation Presentation Transcript

    • P2d - Nuclear Radiation
    • P2d - Nuclear radiation
      • In physics, radiation describes any process in which energy emitted by one body travels through a medium or through space, ultimately to be absorbed by another body.
    • P2d - Nuclear radiation
      • Ionising radiation
      • Some types of radiation have enough energy to knock _________ out of _________ giving them a positive charge
      • This is hazardous for living things as it can lead to mutations and cancer
      Ionisation
    • Background radiation
    • Types of Radiation Alpha Beta Gamma
    • Uses of radiation - Alpha
      • Smoke alarms
      • Smoke alarms contain Americium 241, which emits __________ particles
      • The alpha particles ___________ the air allowing a current to flow
      • Smoke stops this current
    • Uses - beta and gamma
      • Beta
      • To test thickness of paper
      • Gamma
      • To check safety of welds joining metal together
      • Used in radiotherapy treatment for cancer
      • Sterilise medical equipment
    • Types of radiation - Summary Uses Ionisation power Penetration power Type
    • Radioactive waste
    • Radioactive waste
      • Radioactive waste is…
      • It is hazardous because…
    • Disposing of radioactive waste
    • Disposal of radioactive waste
      • Waste can stay radioactive for thousands of years
      • Bury in landfills
      • Reprocessing
      • Encase in glass & bury deep underground