Exam-style question
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What is the role of the scintillator in a gamma camera?.
- A.To convert gamma rays into electrical signals
- B.To convert gamma rays into visible light
- C.To filter out unwanted radiation
- D.To store the detected signals
Model answer
What a good answer should say
- To convert gamma rays into visible light
Explanation
Why this works
The scintillator material in a gamma camera absorbs gamma rays and emits visible light, which is then detected by photomultiplier tubes.
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