| 21. | He pioneered the use of photomultiplier tubes to measure the infrared radiation of cold stars.
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| 22. | Another photomultiplier tube detected charged particles that passed through a plastic shield around the cylinder.
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| 23. | Cherenkov light emitted by particle interactions was detected by an array of 1220 photomultiplier tubes.
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| 24. | The photons are detected using a photomultiplier tube.
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| 25. | Photomultiplier tubes, light guides, and silicon photomultipliers are examples of instruments used to collect this light.
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| 26. | The button is attached to a photomultiplier tube.
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| 27. | It consists of 50, 000 tons of pure water surrounded by about 11, 200 photomultiplier tubes.
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| 28. | High-energy particles striking the water result in Cherenkov light that is detected by the photomultiplier tubes.
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| 29. | The scintillation photons were detected by photomultiplier tubes.
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| 30. | This fluorescent light is typically recorded with a photomultiplier tube ( PMT ) or filtered photodiodes.
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