Physics GCSE
sealed sources
What sealed sources means in Physics GCSE, as defined for AQA.
Definition of sealed sources
Check what you remember
Read the wording for your board, then hide it and explain sealed sources in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: AQA
Sources that add protection against contamination as well as limiting irradiation.
Topics that use sealed sources
- Radioactive contamination (AQA GCSE)
Related terms
- alpha inside the body
- contamination
- decay in contact with tissue
- duration of exposure
- internal versus external hazard
- ionising power
- irradiation
- irradiation leaves nuclei unchanged
Using sealed sources in the exam
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