Exploratory study of PWFA-driven FEL at CLARA

CLARA PWFA 驱动的 FEL 探索性研究

基本信息

批准号：
ST/S006214/1
负责人：
Bernhard Hidding
金额：
$ 76.07万
依托单位：
University of Strathclyde
依托单位国家：
英国
项目类别：
Research Grant
财政年份：
2019
资助国家：
英国
起止时间：
2019 至无数据
项目状态：
未结题

来源：
https://gtr.ukri.org/projects?ref=ST%2FS006214%2F1
关键词：
Exploratory study PWFA driven FEL

项目摘要

This project "Exploratory Study of PWFA-FEL at CLARA" will develop electron-beam driven plasma wakefield accelerator (PWFA) based free-electron-lasers (FEL). FEL's are advanced coherent light sources which allow imaging of ultrasmall structures and ultrafast processes. These 'engines of discovery', today driven exclusively by linac-generated electron beams, are a major part of the STFC strategy https://stfc.ukri.org/files/fel-report-2016/ . Plasma-based accelerators, either driven by laser pulses in laser wakefield accelerators (LWFA) or driven by electron pulses in plasma wakefield accelerators (PWFA), are alternative acceleration methods known to produce short and intense, high energy electron beams. They are therefore increasingly considered as drivers for FEL's in future compact systems. However, a well-known substantial challenge of plasma accelerators is the production of electron beams with sufficiently low emittance and energy spread in order to achieve lasing in an undulator setup. Recent conceptual breakthroughs by the Strathclyde/UCLA-led "E210: Trojan Horse PWFA" collaboration and first experimental evidence obtained at SLAC FACET suggests that PWFA can produce electron beams with emittance and energy spread as well as brightness many orders of magnitude better than state-of-the-art. This would not only allow plasma accelerator electron output to meet the strict requirements to achieve lasing in an FEL, but also to exceed the state-of-the art of the best linac-based machines such as LCLS or European XFEL by many orders of magnitude as regards emittance as well as 5D and 6D brightness. Such beams could have transformative impact, as they may allow the realization of compact and cost-effective FEL's with a performance exceeding those of existing hard x-ray FEL's such as LCLS or the EU XFEL, including novel capabilities such as coherent attosecond-scale, high brilliance, single-spike hard X-rays pulses. We aim to develop this technology as a next-generation photon source for the time after current and upcoming linac-driven FEL's.

该项目“ Clara的PWFA-FEL的探索性研究”将开发基于电子驱动的等离子体Wakefield Accelerator（PWFA）的自由电子激光器（FEL）。 FEL是高级相干光源，可以对超质结构和超快过程进行成像。这些“发现引擎”如今仅由Linac生成的电子束驱动，是STFC策略https://stfc.ukri.org/files/fel-fel-report-2016/的主要部分。基于血浆的加速器，是由激光搏动器（LASER WAKEFIELD加速器（LWFA））驱动的，或者是由等离子体Wakefield加速器（PWFA）中的电子脉冲驱动的，是已知的替代加速度方法，可产生短而强烈的高能电子束。因此，它们被越来越被视为FEL在未来紧凑型系统中的驱动因素。然而，血浆加速器的众所周知的重大挑战是产生具有足够低的发射率和能量扩散的电子束，以实现在不输液器设置中的激光。 Strathclyde/UCLA领导的“ E210：Trojan Horse PWFA”合作的最新概念突破，并在SLAC Facet获得的首次实验证据表明，PWFA可以产生具有发射和能量传播的电子束，并且比您最好的亮度更好。这不仅将允许血浆加速器电子产出满足严格的要求，以实现FEL的激光，而且还可以超过最佳基于Linac的机器（例如LCLS或欧洲XFEL）的最先进，这是许多数量级的次数以及5D和6D和6D和6D和6D的亮度。这样的光束可能会产生变革性的影响，因为它们可以实现紧凑和具有成本效益的Fel，其性能超过了现有硬X射线FEL的性能，例如LCLS或EU XFEL的表现，包括新型功能，例如连贯的AttoScale，高光彩，高光彩，高光彩，单Spike Hard X-Rays脉动。我们的目标是在当前和即将到来的Linac驱动的FEL之后的时间内开发这项技术作为下一代光子源。

项目成果

期刊论文数量（9）

专著数量（0）

科研奖励数量（0）

会议论文数量（0）

专利数量（0）

Plasma accelerator driven coherent spontaneous emission

等离子体加速器驱动的相干自发发射

DOI：
10.18429/jacow-fel2019-tup05
发表时间：
2019
期刊：
Proceedings of the 39th International Free-Electron Laser Conference, FEL 2019
影响因子：
0
作者：
Alotaibi B.M.
通讯作者：
Alotaibi B.M.

EuPRAXIA Conceptual Design Report