Relativistic electron beams and beam-plasma interaction

Jagher, P. C. De; Sluijter, F. W.; Hopman, H. J.

doi:10.1016/0370-1573(88)90094-4

Cited by 21 publications

(10 citation statements)

References 192 publications

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“…A review of this work from the beam breakup or accelerator physics point of view has been given by Lau [30]. A number of review articles on "the" beam-plasma interaction have been written over the decades [48]. In this appendix we review briefly the relevant steepest-descent calculations and go on to confirm the accuracy of the analytic forms by comparison with more exact numerical solutions.…”

Section: Discussionmentioning

confidence: 96%

Flute instability of an ion-focused slab electron beam in a broad plasma

et al. 1992

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An intense relativistic electron beam with an elongated cross section, propagating in the ion-focused regime through a broad, uniform, unmagnetized plasma, is shown to suffer a transverse flute instability. This instability arises from the electrostatic coupling between the beam and the plasma electrons at the ion-channel edge. The instability is found to be absolute and the asymptotic growth of the flute amplitude is computed in the "frozen-field" approximation and the large skin-depth limit. The minimum growth length is shown to be much less than the betatron period, with the consequence that focusing is rendered ineffective. It is further shown that growth is much reduced when the beam propagates through a narrow channel where the ion density greatly exceeds that of the surrounding plasma. In this limit, a modest spread in betatron frequency produces rapid saturation. The effect of plasma electron collisions is also considered. Results of beam breakup simulations are noted.

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Section: Discussionmentioning

confidence: 96%

Flute instability of an ion-focused slab electron beam in a broad plasma

et al. 1992

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“…Recent experimental results demonstrated the production of narrow energy spreading electron beam from compact high-gradient laser plasma accelerator (Faure et al, 2006). Those particles beam have a large number of important characteristics and could lead to applications in a large range of fields, including medicine (radiotherapy), chemistry (radiolysis), accelerator physics (Jagher et al, 1988), and also in the ionospheric and astrophysical phenomena, such as the aurora Borealis that occur because of solar wind beam-plasma interaction (Kapetanakos & Hammer, 1973). The production of electron beam can also be achieved using ionization triggered by two transversely colliding laser pulses inside a beam-driven plasma wake (Li et al, 2013b).…”

Section: Introductionmentioning

confidence: 99%

Plasma expansion dynamics in the presence of a relativistic electron beam

Benkhelifa

Djebli

2015

Laser Part. Beams

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The dynamics of an electron-ion plasma is studied when a mono-energetic relativistic electron beam penetrates the expanding plasma. Combined effects of thermal pressure and ambipolar electrostatic potential are considered for fully relativistic multi-fluids model where the quasi-neutrality assumption is used for a beam-plasma system. Relativistic effects are considered for both density and velocity of the beam fluid. Ion acceleration is depicted through a spike-like structure resulting from non-local charge separation and associated with the beak-down of quasi-neutrality. The beam initial speed is found to enhance the spike amplitude and change its position. Moreover, relativistic effects are particularly found significant for a non-thermal plasma.

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“…The interaction of a relativistic electron beam (REB) with plasmas has both the fundamental importance for understanding physics of plasmas and practical applications. The latter include (but not limited to) plasma heating, inertial fusion, generation of high-intensity coherent microwave radiation, acceleration of charged particles in plasmas-see, e.g., papers [1][2][3] and references therein.…”

Section: Introductionmentioning

confidence: 99%

Stark broadening of hydrogen/deuterium spectral lines by a relativistic electron beam: analytical results and possible applications to magnetic fusion edge plasmas

Oks

Sanders

2018

J. Phys. Commun.

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We present a theory of the Stark broadening of hydrogen/deuterium spectral lines by a relativistic electron beam (REB). The theory is developed analytically by using an advanced formalism. We discuss the possible application of these analytical results to magnetic fusion edge plasmas, taking into account also the major outcome of the interaction of a REB with plasmas: the development of strong Langmuir waves.

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Relativistic electron beams and beam-plasma interaction

Cited by 21 publications

References 192 publications

Flute instability of an ion-focused slab electron beam in a broad plasma

Flute instability of an ion-focused slab electron beam in a broad plasma

Plasma expansion dynamics in the presence of a relativistic electron beam

Stark broadening of hydrogen/deuterium spectral lines by a relativistic electron beam: analytical results and possible applications to magnetic fusion edge plasmas

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