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6 Radioactivity

6 Radioactivity

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Question 173

Carbon-11 is a positron-emitting radioactive isotope used as a tracer in PET scans to monitor brain activity. It has a half-life of 20 minutes.

Explain why Carbon-11 must be produced in a cyclotron located very close to, or inside, the hospital where the scan is performed.

[2]
Markscheme

6 Radioactivity Questions

  1. GCSE
  2. /Physics
  3. /6 Radioactivity

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