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Modulation of continuous ion beams with low drift velocity by induced wakefield in background plasmas

  • Zhang-Hu Hu (a1), Yuan-Hong Song (a1), Yong-Tao Zhao (a2) and You-Nian Wang (a1)

Two-dimensional particle-in-cell simulations are performed to investigate the propagation of low energy continuous ion beams through background plasmas. It is shown that the continuous ion beam can be modulated into periodic short beam pulses by the induced wakefield, which can be adopted as a method to produce ultrashort ion beam pulses. Furthermore, the transport of the continuous ion beam in plasma with density gradient in the beam propagation direction is proposed and an enhanced longitudinal compression by density gradient is found due to the phase lock of ion pulses in the focusing regions of wakefield and reduced heating of plasma electrons.

Corresponding author
Address correspondence and reprint requests to: You-Nian Wang, School of Physics and Optoelectronic Technology, Dalian University of Technology, Dalian, China116024. E-mail:
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