Plasma-wakefield acceleration of a positron beam
Journal Article
·
· Physical Review E
Plasma-wakefield excitation by positron beams is examined in a regime for which the plasma dynamics are highly nonlinear. Three dimensional particle-in-cell simulations and physical models are presented. In the nonlinear wake regime known as the blowout regime for electrons, positron wakes exhibit an analogous ''suck-in'' behavior. Although analogous, the two wakefield cases are quite different in terms of their amplitudes, wavelengths, waveforms, transverse profiles, and plasma density dependence. In a homogenous plasma, nonlinear positron wakes are smaller than those of the corresponding electron case. However, hollow channels are shown to enhance the amplitude of the positron wakes.
- Research Organization:
- University of California
- Sponsoring Organization:
- (US)
- DOE Contract Number:
- FG03-92ER40727; FG03-92ER40745; FG03-98DP00211
- OSTI ID:
- 40277192
- Journal Information:
- Physical Review E, Journal Name: Physical Review E Journal Issue: 4 Vol. 64; ISSN 1063-651X
- Publisher:
- The American Physical Society
- Country of Publication:
- United States
- Language:
- English
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