R6 - Uses of nuclear radiation Flashcards Preview

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Flashcards in R6 - Uses of nuclear radiation Deck (5):

What makes beta and gamma suitable for medical tracers?

They penetrate the skin and other body tissues


How do medical traces work?

- A source that emits beta or gamma radiation is injected into the patient.

- The radiation penetrates the body tissue which can then be detected externally by a computer which converts the readings on he screen


Why does the radioactive source need to have a short half life?

So you can use less of the radioactive source but still get a reading on your detector


Why would you never use an alpha particle for medical tracers?

- It would be useless - alpha particles are stopped by body tissues so your would never detect it externally

- Also strongly ionising so can be really harmful if it gets inside of you


What else can gamma be used for?

Industrial traces - said