cerenkov radiation meaning

/che-renˈkof (or -ryenˈkof) rā-di-āˈshən/ (physics)
  noun
  The bluish light emitted by a beam of charged particles passing through a transparent medium at a speed greater than the speed of light through that medium
  ORIGIN: PA Cerenkov (1904–90), Russian physicist

[Electronics]
Light emanating from a transparent material that is traversed by charged particles, whose speed is higher than the speed of light through the material.


Cerenkov radiation
Cerenkov rebatron device An apparatus for generating radio-frequency energy by passing an electron beam through a piece of dielectric having a small aperture.

[Medicine]
also Cherenkov radiation n : light produced by charged particles (as electrons) traversing a transparent medium at a speed greater than that of light in the same medium —called also Cerenkov light

Examples

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1. :For the record, the Cerenkov radiation in nuclear reactors causes them to glow blue, not green.
2. The supernova was discovered by UHURU and OSO-7 and to detect gamma rays from it via Cerenkov radiation showers gave at best equivocal results.
3. IMB detected fast-moving particles such as those produced by proton decay or neutrino interactions by picking up the Cerenkov radiation generated when such a particle moves faster than the speed of light in water.
4. :: And since someone usually brings it up whenever " faster than light " questions are asked, it may as well be me : Cerenkov radiation . ( c ) & bull; 10 : 35, 7 October 2007 ( UTC)
5. Small particles travelling faster than 2 . 3 & middot; 10 8 m / s ( which is perfectly legal under relativity theory ) and slower than 3 & middot; 10 8 m / s ( which is the limit imposed by relativity ) will show the glow of Cerenkov radiation . talk ) 18 : 54, 21 January 2007 ( UTC)