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  • 1
    Electronic Resource
    Electronic Resource
    Interaction of a modulated electron beam with a magnetoactive plasma (1998)
    Springer
    JETP letters 67 (1998), S. 400-404 
    Details
    ISSN: 1090-6487
    Keywords: 52.40.Mj ; 41.60.Bq
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Experimental results concerning the interaction of a modulated electron beam with a magnetoactive plasma in the whistler frequency range are reported. It was shown experimentally that when a beam is injected into the plasma, waves can be generated by two possible mechanisms: Cherenkov emission of whistlers by the modulated beam, and transition radiation from the beam injection point. In the case of weak beam currents (N b/N 0)≪−4) the Cherenkov resonance radiation is more than an order of magnitude stronger than the transition radiation; the Cherenkov emission efficiency decreases at high beam currents. The transformation of the distribution function of the beam is investigated for the case of weak beam currents. It is shown that in the case of the Cherenkov interaction with whistlers the beam is retarded and the beam distribution function becomes wider and acquires a plateau region.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1134/1.567681
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  • 2
    Electronic Resource
    Electronic Resource
    Dynamically stable electron bunches in beam interaction with an electromagnetic wave packet (2000)
    Springer
    JETP letters 71 (2000), S. 178-182 
    Details
    ISSN: 1090-6487
    Keywords: 41.60.Bq ; 41.75.Fr ; 52.35.Hr ; 52.40.Mj
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Nonlinear interaction of electron beam with a whistler wave packet that effectively dissipates through collisions or wave leakage is studied. Independently of the dissipation type and nature of waves, self-organization of the beam structure leads to the formation of bunches continuously decelerated by waves. Strong dissipation prevents phase mixing required for the quasilinear theory and keeps wave phases in the packet correlated. Thus, dynamically stable bunches are present together with a plateau in the velocity distribution; asymptotically, wave emission by bunches is the main process.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1134/1.568309
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    Paper (German National Licenses)
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