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