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Cherenkov radiation |
Also found in: Encyclopedia, Hutchinson | 0.06 sec. |
Cherenkov radiation [tʃɪˈrɛŋkɒf] n (Physics / General Physics) the electromagnetic radiation produced when a charged particle moves through a medium at a greater velocity than the velocity of light in that medium [named after Pavel Alekseyevich Cherenkov (1904-90), Soviet physicist]
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In most parts of the ocean, such radioactive elements are so dilute that Cherenkov radiation can be detected only with the most sensitive photomultipliers. The muon is electrically charged (the neutrino is not) and emits the kind of light called Cherenkov radiation as it moves through the water. Cherenkov radiation comes in cones, and in the case of the neutrino-electron interactions, the cones point back in the direction from which the neutrinos came. |
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