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Effect of plasma inhomogeneity on plasma wakefield acceleration driven by long bunches
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Effects of plasma inhomogeneity on self-modulating proton bunches and accelerated electrons were studied numerically. The main effect is the change of the wakefield wavelength which results in phase shifts and loss of accelerated particles. This effect imposes severe constraints on density uniformity in plasma wakefield accelerators driven by long particle bunches. The transverse two stream instability that transforms the long bunch into a train of micro-bunches is less sensitive to density inhomogeneity than are the accelerated particles. The bunch freely passes through increased density regions and interacts with reduced density regions.
Forward citations
Cited by 2 Pith papers
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Numerical simulations of electron acceleration driven by heavy ion beams in plasma with alternating density gradients
An alternating density gradient profile keeps the witness electron bunch in the accelerating phase of a heavy-ion-driven plasma wakefield, reaching about 1.2 GeV over one meter in simulation.
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Numerical investigations of heavy ion driven plasma wakefield acceleration
Heavy-ion beams, especially a 0.1 mm bismuth bunch at HIAF-like parameters, can excite multi-GV/m plasma wakefields and accelerate electrons to hundreds of MeV in meter-scale plasmas, according to LCODE simulations.
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