Scintillation Counter
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- Scintillation counters use the fact that some substances produce a flash of light when struck by ionising radiation o When some substances are irradiated with alpha, beta or gamma rays, they emit a flash of light o Photomultiplier tubes convert the light to electrical signals o Used in radiation protection, measuring the intensity and energy of incident radiation - Electrons in there substances are excited by the radiation and emit photons of light when the electrons return to lower energy states - Flashes of light are counted electronically to measure the amount of radiation
description
Measuring radioactivity
Transcript of Scintillation Counter
- Scintillation counters use the fact that some substances produce a flash of light when struck by ionising radiation
o When some substances are irradiated with alpha, beta or gamma rays, they emit a flash of light
o Photomultiplier tubes convert the light to electrical signalso Used in radiation protection, measuring the intensity and energy of incident
radiation - Electrons in there substances are excited by the radiation and emit photons of light when
the electrons return to lower energy states- Flashes of light are counted electronically to measure the amount of radiation
