Profiling and variation of laser pulse parameters as a way to preserve the stability of self-injected bunches during excitation of a wakefield in plasma

TL;DR

This paper investigates how laser pulse parameter profiling can enhance the stability of self-injected electron bunches in plasma wakefield acceleration, addressing issues like bunch destruction due to oscillations.

Contribution

It introduces a method to optimize laser pulse parameters to maintain stable, high-quality electron bunches during wakefield excitation in plasma.

Findings

Identified laser pulse profiling parameters for stable bunches

Proposed solutions to prevent bunch destruction from oscillations

Enhanced understanding of wakefield excitation in metal-density plasma

Abstract

The paper considers the excitation of a wakefield in a metal-density plasma using a chain of x-ray laser pulses. The profiling parameters and the necessary parameters of laser pulses for obtaining stable high-quality bunches are found. An essential problem is the destruction of self-injected bunches in the course of their motion. The results of the study are one of the ways to solve the problem of transverse betatron oscillations, which lead to the destruction of bunches.