| 1. | Several hundred photomultiplier tubes, which are light sensors, cracked.
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| 2. | That breaks the neighboring photomultiplier and sets off a chain reaction.
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| 3. | A photomultiplier tube noticed these drops in output and recorded them.
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| 4. | In either case, the photomultiplier can detect individual photons.
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| 5. | The detection is done via CCD or a photomultiplier tube.
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| 6. | The camera on each telescope has 499 individual photomultiplier tubes.
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| 7. | At opposing ends of the chamber were a pair of photomultiplier tubes.
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| 8. | Phosphors in combination with photomultiplier tubes have also been used.
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| 9. | Caesium is also important for its photomultiplier tubes, and video camera tubes.
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| 10. | The electroluminescence photons are detected by the photomultiplier tubes as the S2 signal.
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