Space charge dynamics of bright electron beams
نویسندگان
چکیده
منابع مشابه
Tracking of Electron Beams with Numerically Determined Space Charge Forces
A tracking algorithm for the description of electron beams using grid-based space charge fields is compared to a method based on point-to-point calculations. The charged particles’ equations of motion are solved with a fifth-order embedded Runge-Kutta method using the concept of macroparticles. The space charge forces are determined in the bunch’s restframe with a multigrid-method [1].
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The resistive-wall instability of charged particle beams has been experimentally studied in space-charge dominated electron beams. The beam energy is in the range of 3 to 8.5 keV, the beam current is between 25 mA and 62 mA. In the experiment, electron beams produced from a thermionic cathode are passed through a 0.96 m long glass tube coated with a resistive material, and localized space-charg...
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Title of Dissertation: STUDY OF LONGITUDINAL DYNAMICS IN SPACE-CHARGEDOMINATED BEAMS Kai Tian, Doctor of Philosophy, 2008 Dissertation Directed By: Professor Patrick G. O'Shea Professor Rami A. Kishek Department of Electrical and Computer Engineering Modern accelerator applications, such as heavy ion fusion drivers, pulsed neutron sources, and X-ray Free Electron Lasers, demand beams with highe...
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Based on the Vlasov-Maxwell equations describing the self-consistent nonlinear beam dynamics and collective processes, the evolution of an intense sheet beam propagating through a periodic focusing field has been studied. It has been shown that in the case of a beam with uniform phase space density the Vlasov-Maxwell equations can be replaced exactly by the hydrodynamic equations with a triple ...
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A beam-tracking simulation has been done for study of the electron-cooling bunching of ion beams around a few hundred MeV/u. In the simulation, the field due to the space charge of a beam in a round vacuum chamber is calculated from the charge distribution of macro-particles and the image particles due to the macro-particles. The simulation results show that the bunched beams meet a transverse ...
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ژورنال
عنوان ژورنال: Physical Review Special Topics - Accelerators and Beams
سال: 2003
ISSN: 1098-4402
DOI: 10.1103/physrevstab.6.024201