PH-686
Uses and hazards of radioactivity
Physics · Secondary 3 · Medium · Uses and hazards of radioactivity
Gamma rays are used to sterilise plastic syringes before they are packed. Why is gamma radiation suitable for this medical use?
- Gamma rays make the syringes permanently radioactive so they kill bacteria later.
- Gamma rays kill bacteria inside the packaging without damaging the syringes.
- Gamma rays heat the syringes to a high temperature to melt bacteria.
- Gamma rays are non-ionising so they are harmless to bacteria but safe for humans.
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