ON THE RADIATION FORCE IN THE MOTION OF A CHARGE IN A MEDIUM (in Russian)
Journal Article
·
· Zhur. Eksptl'. i Teoret. Fiz.
OSTI ID:4259606
The radiative force is computed for a charge moving in a medium which, in the general case, is considered to be anisotropic and gyrotropic. The radiative force in a medium can play a significant role when the particle moves in a magnetoactive plasma, in channels and slits in dielectrics and also in wave guides. At velocities larger than the phase velocity of light in the medium the radiative force which changes the amplitude of the oscillations and which is related to the emission of anomalous Doppler frequencies, possesses a different sign than that of radiative friction due to the emission of normal Doppler frequencies. The total radiative force which is responsible for the change in the amplitude of the oscillations of a particle in an isotropic medium corresponds to friction also in the case of super-light motion. However this friction may be appreciably smaller than the radiative friction encountered at sub-light velocities. In an arisotropic medium amplification of the oscillations may occur instead of friction. The decrease of the radiative friction or the appearance of the amplification may be related to the peculiarities of the anomalous Doppler effect as revealed by a quantum mechanics analysis and also to the unstability of the super-light particle beams. (auth)
- Research Organization:
- Gorki State Univ.
- NSA Number:
- NSA-13-018380
- OSTI ID:
- 4259606
- Journal Information:
- Zhur. Eksptl'. i Teoret. Fiz., Journal Name: Zhur. Eksptl'. i Teoret. Fiz. Vol. Vol: 36
- Country of Publication:
- Country unknown/Code not available
- Language:
- Russian
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