标题： SPARC_LAB等离子透镜实验概述及最新结果 显示英文标题

标题： Overview of Plasma Lens Experiments and Recent Results at SPARC_LAB

摘要： 束流注入和从等离子体模块中提取仍然是在等离子体加速器中产生高质量电子束的关键问题之一。 适当的匹配条件要求将高亮度束流聚焦到几微米的尺寸，并在出口处捕获发散度高的束流而不损失束流质量。 基于等离子体的透镜已证明可以提供约kT/m量级的聚焦梯度，并具有径向对称的聚焦特性，因此在传输线设计中为永磁体提供了紧凑且经济的替代方案。 本文综述了等离子体透镜的最新实验和未来展望。 显示英文摘要

摘要： Beam injection and extraction from a plasma module is still one of the crucial aspects to solve in order to produce high quality electron beams with a plasma accelerator. Proper matching conditions require to focus the incoming high brightness beam down to few microns size and to capture a high divergent beam at the exit without loss of beam quality. Plasma-based lenses have proven to provide focusing gradients of the order of kT/m with radially symmetric focusing thus promising compact and affordable alternative to permanent magnets in the design of transport lines. In this paper an overview of recent experiments and future perspectives of plasma lenses is reported.