P2d Radiation
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P2d - Nuclear Radiation
Transcript of P2d Radiation
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 radiationIonising 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 gammaBeta• 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 - SummaryUsesIonisation
powerPenetration 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 yearsBury in landfills
Reprocessing
Encase in glass & bury deep underground
