#43
4.4.2.4 Contamination
Paper 1 · Higher combined
Spec reference: 4.4.2 (subtopic).
What you need to know
- Contamination
- When unwanted radioactive atoms get onto
- an object, it is possible for the radioactive
- particles to get inside the body.
- Protective clothing should be worn when
- handling radioactive material.
- Irradiation
- Irradiation occurs when materials are near a radioactive source. The source is sometimes
Self-assessment (checklist)
- I can describe what is meant by radioactive
- I can explain what is meant by irradiation.
- I can compare the hazards associated with
- I can suggest how to manage the use of radioactive
- I can explain why the findings of studies into the effects
Key steps (method)
- Identify what the question is testing and use the correct equation/definition.
- Show substitutions and units clearly.
Common mistakes
- Unit conversions, rearranging errors, or quoting a law without applying it.