Ring of scintillation detectors and solar panel: what they have in common

1. Step 1. Ring of scintillation detectors — is part of — PET scanner. Scintillators around the patient.
2. Step 2. PET scanner — has part — Photodiode. Photodetectors register the scintillations.
3. Step 3. Photodiode — uses — Photovoltaic effect. Light generates a current in the junction.
4. Step 4. Photovoltaic effect — is used in — Solar panel. The photoelectric effect in a semiconductor.

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