Scintillator | Wikipedia audio article
Channel: wikipedia tts
Date: 2019-10-03

This is an audio version of the Wikipedia Article:
https://en.wikipedia.org/wiki/Scintillator


00:00:36 1 Principle of operation
00:01:36 2 History
00:02:15 3 Applications for scintillators
00:03:11 4 Properties of scintillators
00:09:36 5 Types of scintillators
00:09:45 5.1 Organic crystals
00:10:43 5.2 Organic liquids
00:11:46 5.3 Plastic scintillators
00:12:53 5.3.1 Bases
00:14:07 5.3.2 Fluors
00:15:03 5.4 Inorganic crystals
00:18:11 5.5 Gaseous scintillators
00:18:57 5.6 Glasses
00:19:46 6 Physics of scintillation
00:19:55 6.1 Organic scintillators
00:21:36 6.2 Inorganic scintillators
00:23:09 6.3 Gases
00:23:28 7 Response to various radiations
00:23:38 7.1 Heavy ions
00:24:45 7.2 Electrons
00:25:11 7.3 Gamma rays
00:26:00 7.4 Neutrons
00:27:01 8 List of inorganic scintillators
00:33:37 9 See also



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SUMMARY
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A scintillator is a material that exhibits scintillation, the property of luminescence, when excited by ionizing radiation. Luminescent materials, when struck by an incoming particle, absorb its energy and scintillate (i.e. re-emit the absorbed energy in the form of light). Sometimes, the excited state is metastable, so the relaxation back down from the excited state to lower states is delayed (necessitating anywhere from a few nanoseconds to hours depending on the material): the process then corresponds to either one of two phenomena, depending on the type of transition and hence the wavelength of the emitted optical photon: delayed fluorescence or phosphorescence.