Fig. 1. Schematic illustration. (IMAGE)
Caption
Fig. 1. Schematic illustration. When an ultra-relativistic electron beam is incident into nonuniform plasma with an upramp density profile, the beam excites a nonlinear plasma wake, and strong beam pinching occurs due to the focusing wakefields. The focused dense beam, in turn, drives stronger wakefields of up to tens of TV/m, leading to a burst of gamma-ray emission with extremely high efficiency and brilliance.
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Copyright © 2026 Xing-Long Zhu et al.
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