The characteristic blue glow of an underwater nuclear reactor is a normal phenomenon due to cherenkov radiation, it is named for soviet physicist pavel cherenkov, who shared the 1958 nobel prize in physics for. Vasily prosin has told me that, shortly before he died, g. Cherenkov radiation, light produced by charged particles when they pass through an optically transparent medium at speeds greater than the speed of light in that medium. Cherenkov radiation definition of cherenkov radiation by. Cherenkov radiation synonyms, cherenkov radiation pronunciation, cherenkov radiation translation, english dictionary definition of cherenkov radiation.
Cherenkov radiation is electromagnetic radiation emitted when a charged particle passes through a dielectric medium at a speed greater than the phase velocity of light in that medium. The discovery of cherenkov radiation and its use in the. The phenomenon was discovered by the soviet physicist pavel a. The role of vavilov in the work of cherenkov has been discussed recently by bolotovski, y n. Le osservazioni vanno e seguite durante le notti serene e senza luna. The cherenkov telescope array or cta is a multinational, worldwide project to build a new generation groundbased gammaray instrument in the energy range extending from some tens of gev to about 300 tev. Cherenkov, light emitted by a transparent medium when charged particles pass through it at a speed greater than the speed of light in the medium. Inverse cherenkov radiation based on smithpurcell effect. Cherenkov radiation is used instead of just cherenkov radiation in order to emphasise the role of s. Cherenkov radiation is the blue coloured radiation that is observed in nuclear reactors where it is responsible for the blue colour of the spent fuel pools or during the entry of cosmic rays into the earths atmosphere, especially under the effect of high energy gamma rays producing an avalanche of secondary particles in the atmosphere it results from the shock wave generated by an. The cherenkov effect a charged particle traveling in a dielectric medium with n1 radiates cherenkov radiation if its velocity is larger than the phase velocity of light vcn or. In particular, we consider the cherenkov radiation in vacuo.
In 1990s, the bunch form factor 3 and angular distribution of coherent transient radiation ctr were measured experimentally. Gatto physics letters b we consider cherenkov radiation emitted by neutral particles with a nonzero magnetic andor electric dipole moment. Physics letters b 315 1993 1293 northholland cherenkov radiation of neutrinos w. Vacuum cherenkov radiation in quantum electrodynamics with. The effect, discovered by cherenkov in 1934 while he was studying the effects of gamma rays on liquids and explained in 1937 by i. The characteristic blue glow of an underwater nuclear reactor is due to cherenkov radiation.
It is proposed as an open observatory and will consist of two arrays of imaging atmospheric cherenkov telescopes iacts, a first array at the northern hemisphere with emphasis on the study of. Pdf the vavilovcherenkov effect is investigated with respect to a beam of charged particles moving over a surface generally periodic of a. Neufeld institut fair theoretische physik, universit wien, boltzmanngasse 5, a1090 vienna, austria received 8 july 1993 editor. Cherenkov radiation in the reactor pool of the frm ii 3 3picture. Cherenkov radiation, also known as vavilovcherenkov radiation, also spelled cerenkov or cerenkov is electromagnetic radiation emitted when a charged parti. In a rather general class of dispersion relations, there exists an energy threshold.
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