21. For most scintillators, light output and scintillation decay time depends on the temperature. 22. See scintillator and scintillation counter for practical applications. 23. The scintillation photons were detected by photomultiplier tubes. 24. Interplanetary scintillation observations provide a database to understand space weather changes and their predictability. 25. Sound often changes the perceived hue, brightness, scintillation , and directional movement. 26. Optical detection using scintillation can also be used. 27. About how much would a scintillation counter cost? 28. Scintillation occurs most frequently at tropical latitudes where it is a night time phenomenon.29. They counted the number of scintillations per minute that each foil produced on the screen. 30. Scintillation detectors are also used in the petroleum industry as detectors for Gamma Ray logs.