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4.3 Hazards and uses of radioactive emissions and of background radiation

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Question 18
F

Why would an isotope with a half-life of 30 seconds be unsuitable for use as a medical tracer?

[1]
A

Its activity would be too low for any detector to pick it up at any time

B

It would stay inside the patient's body for many years after the scan

C

It would give the patient a very small radiation dose during the scan

D

Its activity would fall too far before the scan could be completed

Markscheme

4.3 Hazards and uses of radioactive emissions and of background radiation Questions

  1. GCSE
  2. /Physics
  3. /4.3 Hazards and uses of radioactive emissions and of background radiation

40 exam-style questions on AQA GCSE Physics 4.3 Hazards and uses of radioactive emissions and of background radiation, covering 4.3.1 Background radiation, 4.3.2 Different half-lives of radioactive isotopes, and 4.3.3 Uses of nuclear radiation. Each one has a worked solution and a mark scheme showing where the marks go.

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