Confined Continuous-Flow Plasma Source For High-Average-Power Laser Plasma Acceleration

TL;DR

This paper introduces a novel confined continuous-flow plasma source designed for high-repetition-rate laser plasma acceleration, aiming to improve beam stability and reduce chamber gas load for practical applications.

Contribution

The paper presents a new plasma source that enables kHz electron acceleration with continuous, spatially confined gas flow, enhancing high-average-power laser plasma acceleration.

Findings

Enables high-repetition-rate electron acceleration at kHz frequencies.

Reduces gas load in the acceleration chamber.

Improves beam stability and reproducibility.

Abstract

Over the last decades, significant advances in high-power laser systems have enabled rapid progress in the development of laser-driven plasma accelerators. Today, the results obtained in beam stability and reproducibility present laser plasma acceleration as a viable and promising alternative to conventional accelerators. As several electron beam and secondary sources applications require high average currents, a major focus is now on increasing the beam's repetition rate. In the following, we introduce a novel plasma source for kHz electron acceleration, providing a continuous and spatially confined gas flow, while minimising the gas load in the acceleration chamber.