The paper introduces a symmetry-based multipole classification (m=1 for centroid motion, m=2 for cross-plane emittance coupling) that unifies discussion of wake perturbations and beam-quality issues across LWFA and PWFA.
Generation of High Brightness Electron Beams via Ionization Induced Injection by Transverse Colliding Lasers in a Beam-Driven Plasma Wakefield Accelerator
1 Pith paper cite this work. Polarity classification is still indexing.
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abstract
The production of ultra-bright electron bunches using ionization injection triggered by two transversely colliding laser pulses inside a beam-driven plasma wake is examined via three-dimensional (3D) particle-in-cell (PIC) simulations. The relatively low intensity lasers are polarized along the wake axis and overlap with the wake for a very short time. The result is that the residual momentum of the ionized electrons in the transverse plane of the wake is much reduced and the injection is localized along the propagation axis of the wake. This minimizes both the initial 'thermal' emittance and the emittance growth due to transverse phase mixing. 3D PIC simulations show that ultra-short (around 8 fs) high-current (0.4 kA) electron bunches with a normalized emittance of 8.5 and 6 nm in the two planes respectively and a brightness greater than 1.7*10e19 A rad-2 m-2 can be obtained for realistic parameters.
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physics.plasm-ph 1years
2026 1verdicts
UNVERDICTED 1representative citing papers
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Wake Perturbations in Laser- and Beam-Driven Plasma Wakefield Accelerators: A Symmetry-Based Multipole Classification
The paper introduces a symmetry-based multipole classification (m=1 for centroid motion, m=2 for cross-plane emittance coupling) that unifies discussion of wake perturbations and beam-quality issues across LWFA and PWFA.