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  • 2000-2004  (2)
  • 1935-1939
  • 2001  (2)
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  • 2000-2004  (2)
  • 1935-1939
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  • 1
    Electronic Resource
    Electronic Resource
    Analytical theory of pulsed relativistic electron beams entering a vacuum (2001)
    [S.l.] : American Institute of Physics (AIP)
    Physics of Plasmas 8 (2001), S. 4613-4617 
    Details
    ISSN: 1089-7674
    Source: AIP Digital Archive
    Topics: Physics
    Notes: An electron beam with a high-current density, passing from a conductor into a vacuum, generates strong electric fields which significantly influence further propagation of the electrons. An analytical solution for a one-dimensional pulsed electron beam with an arbitrary energy distribution is found which allows one to calculate electric field distributions, electron density distributions and potential distributions in the vacuum region. The analytical solution is fully relativistic and is applicable up to the time at which the interpenetration of electron paths occurs. It may be useful in research with fs lasers relating to generation of relativistic electron beams, ion beams, and the pumping of x-ray lasers. © 2001 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1403015
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Relativistic electron beams in conducting solids and dense plasmas: Approximate analytical theory (2001)
    [S.l.] : American Institute of Physics (AIP)
    Physics of Plasmas 8 (2001), S. 1441-1444 
    Details
    ISSN: 1089-7674
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The response of a conducting medium to an intense electron beam is investigated. For this purpose Maxwell's equations in cylindrical geometry are approximately solved analytically. The approximation is valid if the pulse duration of the beam is intermediate between two characteristic relaxation times of the medium, viz. the momentum relaxation time and the magnetic diffusion time. This condition is well satisfied in present experiments which use picosecond or subpicosecond laser pulses to generate the electron beam. The theory allows one to calculate the spatial and temporal profiles of the return current and the radial current induced in the conductor, as well as that of the azimuthal magnetic field of the combined beam and return currents. This application of the theory is illustrated by way of example. The theory is applicable to a solid conductor as well as to a dense high-temperature plasma and may be useful in research relating to the fast-ignitor scheme and for clarifying features of recent experiments with femtosecond laser pulses. © 2001 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1350664
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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