权益分类	功能权益	普通用户	{{item.name}}会员
{{category.name}}	{{benefitItem.name}}

Harnessing laser-driven plasma waves as particle and radiation sources

利用激光驱动的等离子体波作为粒子和辐射源

基本信息

批准号：
EP/E001815/1
负责人：
Dino Anthony Jaroszynski
金额：
$ 423.64万
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：
2007
资助国家：
英国
起止时间：
2007 至无数据
项目状态：
已结题

来源：
https://gtr.ukri.org/projects?ref=EP%2FE001815%2F1
关键词：
Harnessing laser driven plasma waves

项目摘要

We propose to build on the successes of the ALPHA-X project with a new programme of research to investigate and develop novel compact radiation sources that explicitly exploit laser-driven plasma waves. The project will take forward the development of wakefield accelerators and utilise the sub-10 fs electron bunches accelerated in plasma channels to produce ultra-short pulses of coherent infrared to x-ray radiation in a FEL and coherent radiator structures. The main objective will be to push towards hard x-rays and gamma rays by utilising the very short spatial period undulator-like structures of plasma waves to lay down the foundations of sources in a spectral region hitherto not accessible. We will also push the frontiers of ultra-short pulse generation by: i) controlling and reducing the electron bunch duration from wakefield accelerators using pre-bunching techniques, which will also increase the peak current available while reducing the pulse length from a radiation source, and by ii) investigating the generation and tailoring of arbitrary shaped single-cycle pulses (initially in the visible) by backscattering tailored terahertz pulses from relativistic mirrors formed by relativistic plasma wakes and ionisation fronts. The experimental programme to develop these novel compact radiation sources will utilise the unique facilities at Strathclyde, set up under the ALPHA-X project, and resources available in the EU, US and China, to provide a mix of long-term development programmes and short-term (6-week) campaigns that take advantage of the particular laser beam characteristics available at the facilities. An important aspect of the project will be a substantial theoretical programme that will be undertaken by an established team of theoreticians that has previously worked together under ALPHA-X, and new teams that bring new approaches and backgrounds to bear on the significant theoretical challenges. The large group of collaborators provide both breadth and depth to the programme, and through their contributions and access to their various facilities, will also enable very effective use of resources. The programme of research is central to a UK roadmap that outlines potential new landscapes and ways forward in the field.

我们建议在ALPHA-X项目成功的基础上，开展一项新的研究计划，研究和开发新型紧凑型辐射源，明确利用激光驱动的等离子体波。该项目将推进韦克菲尔德加速器的发展，并利用在等离子体通道中加速的10 fs以下的电子聚束，在自由电子激光和相干辐射器结构中产生相干红外到X射线辐射的超短脉冲。其主要目标将是通过利用等离子体波的非常短的空间周期波动器状结构来推动硬X射线和伽马射线，从而在迄今为止无法访问的光谱区域中奠定源的基础。我们还将通过以下方式推动超短脉冲产生的前沿：i）使用预聚束技术控制和减少来自韦克菲尔德加速器的电子聚束持续时间，这也将增加可用的峰值电流同时减少来自辐射源的脉冲长度，以及通过ii）研究任意形状的单周期脉冲的产生和剪裁（最初在可见光中）通过从由相对论性等离子体尾流和电离前沿形成的相对论性反射镜反向散射定制的太赫兹脉冲。开发这些新型紧凑型辐射源的实验计划将利用在ALPHA-X项目下建立的斯特拉斯克莱德的独特设施以及欧盟、美国和中国的可用资源，提供长期开发计划和短期（6周）活动的组合，这些活动利用了设施中可用的特定激光束特性。该项目的一个重要方面将是一个实质性的理论计划，该计划将由一个以前在ALPHA-X下合作过的理论家团队和新团队承担，这些新团队将带来新的方法和背景来应对重大的理论挑战。大量的合作者为方案提供了广度和深度，并通过他们的贡献和使用其各种设施，也将使资源得到非常有效的利用。该研究计划是英国路线图的核心，该路线图概述了该领域潜在的新景观和前进方向。