强激光与粒子束, 2020, 32 (9): 092001, 网络出版: 2020-11-12
激光等离子体尾波加速器的发展和展望 下载: 1030次
Development and prospect of laser plasma wakefield accelerator
激光等离子体 激光加速 激光等离子体尾波 超紧凑型加速器 新型辐射源 laser plasma laser acceleration laser wakefield ultracompact accelerator novel radiation source
摘要
超强激光在气体等离子体中传输时可以激发出大振幅的电子等离子体尾波。激光等离子体尾波加速器是利用该尾波对带电粒子(特别是电子和正电子)进行加速的一种新型装置。由于其加速梯度相较于现有的常规加速器可以提升1000倍,为建造超紧凑型的加速器和辐射源奠定了基础,也为将来建造基于等离子体的超高能正负电子对撞机和自由电子激光装置提供了可能。对该新型加速器的原理、特点、发展历程,尤其是近十年来的主要进展和未来发展趋势及面临的主要挑战进行简要梳理和介绍。
Abstract
An ultra-short ultra-intense laser can excite high-amplitude electron plasma waves or so called laser wakefields when it propagates in under-dense gas plasma. A laser wakefield accelerator makes use of such waves to accelerate charged particles (especially electrons and positrons). These plasma waves can sustain longitudinal acceleration fields over three orders of magnitude higher than conventional radio frequency accelerators. This new type of laser-driven plasma-based accelerator opens the way for compact particle accelerators and radiation sources. It also has the potential to be applied for the construction of future ultra-high energy TeV electron-positron colliders and free electron lasers. In this paper, the principle, characteristics and development history of this new accelerator, especially the main progress in the past ten years, the future development trend and the main challenges will be briefly reviewed and introduced.
陈民, 刘峰, 李博原, 翁苏明, 陈黎明, 盛政明, 张杰. 激光等离子体尾波加速器的发展和展望[J]. 强激光与粒子束, 2020, 32(9): 092001. Min Chen, Feng Liu, Boyuan Li, Suming Weng, Liming Chen, Zhengming Sheng, Jie Zhang. Development and prospect of laser plasma wakefield accelerator[J]. High Power Laser and Particle Beams, 2020, 32(9): 092001.