Optimal Resonant Asymptotics of Wakefield Excitation in Plasma by Non-resonant Sequence of Relativistic Electron Bunches

TL;DR

This paper numerically investigates how non-resonant relativistic electron bunches can optimally excite plasma wakefields, revealing conditions for maximum growth rate and amplitude in resonant asymptotics.

Contribution

It introduces a numerical simulation study of wakefield excitation by non-resonant electron bunches, identifying optimal parameters for maximum wakefield growth and amplitude.

Findings

Maximum wakefield growth rate achieved at optimal parameters.

Largest wakefield amplitude occurs under resonant asymptotics.

Numerical simulations confirm theoretical predictions.

Abstract

Resonant asymptotics of wakefield excitation in plasma by non-resonant sequence of relativistic electron bunches has been numerically simulated. It has been shown that in resonant asymptotics at optimal parameters the wakefield is excited with the maximum growth rate and the amplitude of the excited wakefield is the largest.