Exam-style question
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How does collimation affect the detection of gamma photons in a gamma camera?.
- A.It allows all gamma photons to be detected equally
- B.It filters out unwanted photons, enhancing image clarity
- C.It increases the overall count of detected photons
- D.It has no effect on photon detection
Model answer
What a good answer should say
- It filters out unwanted photons, enhancing image clarity
Explanation
Why this works
Collimation filters out gamma photons that are not aligned with the detector, which enhances the clarity of the image by reducing background noise and improving the quality of the detected signal.
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