Stable Positron Acceleration in Thin, Warm, Hollow Plasma Channels
Stable Positron Acceleration in Thin, Warm, Hollow Plasma Channels
Hollow plasma channels are attractive for lepton acceleration because they provide intrinsic emittance preservation regimes. However, beam breakup instabilities dominate the dynamics. Here, we show that thin, warm hollow channels can sustain large-amplitude plasma waves ready for high-quality positron acceleration. We verify that the combination of warm electrons and thin …