On the problem of the unthresholdness of Vavilov-Cherenkov radiation (X)

The approximate analytic formula is obtained which describes the radiation intensity in the Tamm problem (charge motion on a finite interval) on finite distances. For the typical experimental situation, the angular spectrum of the Cherenkov radiation broadens enormously and differs essentially from that predicted by the Tamm formula. In addition, the approximate analytic formula is found which takes into account both the deceleration of a charge due to the energy losses and a finite distance of the observation point. Both these effects contribute to the broadening of the angular spectrum. The approximate analytic formulae are in close agreement with the exact numerical calculations for the real experimental situation. These formulae are applied to the description of Cherenkov radiation produced by relativistic heavy ions in the Darmstadt experiments. An experiment is proposed to check the broadening of the Cherenkov angular spectrum arising from its measurement on finite distances.

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On the problem of the unthresholdness of Vavilov-Cherenkov radiation (X)

Cited by 5 publications

References 3 publications

Optical transition radiation in a transparent medium and its relation to the Vavilov-Cherenkov radiation

Optical transition radiation in a transparent medium and its relation to the Vavilov-Cherenkov radiation

On optical transition radiation of charged particles in SiO2-aerogels

New formulae for the radiation intensity in the Tamm problem

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