Physics 9702 · 24 Medical physics
24.3 PET scanning
Explain PET scanning principles, including tracer decay, electron-positron annihilation, and gamma-ray detection.
- Questions
- 5
- Years
- 2022–2025
- Multiple choice
- 0
- Written answer
- 5
- Average marks
- 10.4
Where this subtopic appears
- Paper 4variants 425
Questions by year
| Year | Feb/March | May/June | Oct/Nov | Total |
|---|---|---|---|---|
| 2025 | 1 | – | – | 1 |
| 2023 | – | – | 1 | 1 |
| 2022 | 1 | 1 | 1 | 3 |
