Experimental Demonstration of Terahertz-Driven Particle Acceleration

太赫兹驱动粒子加速的实验演示

• 批准号: 2488454
• 金额: --
• 依托单位: University of Manchester
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2020
• 资助国家: 英国
• 起止时间: 2020 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2488454
• 关键词: Experimental; Demonstration; Terahertz; Driven; Particle

There is growing interest in the use of laser-generated terahertz (THz) radiation sources to reduce the scale of today's particle accelerators with the ultimate dream of producing compact laboratory-sized machines for applications ranging from versatile x-ray sources to medical treatment. This project seeks to take novel terahertz (THz)-driven acceleration to a new and internationally leading level. By combining ultrafast laser generated THz radiation source development with a new understanding of THz-electron beam interactions, we seek to develop an idealised interaction scheme and breakthrough the 100 MV/m accelerating gradient limit of conventional radio-frequency accelerating cavities. This will be achieved by developing laser-driven terahertz sources with multi-MV/m field strengths and exploring the interaction of the THz pulse with the electron beam and the subsequent beam dynamics of the accelerated beam. The project will focus primarily on exploiting laser-driven terahertz sources to accelerate low energy 100 keV electron beams from a table-top electron gun into the MeV energy regime, but will also involve work on CLARA, a 50 MeV linear accelerator at STFC Daresbury National Laboratory. The THz source development will explore the use of novel THz emitters for producing the required 100 MV/m fields, benefitting from a recent funded programme of THz source development at Manchester. This project will also involve the use of the Cockcroft ultrafast laser system (recently awarded to Lancaster, Manchester and Liverpool through a STFC capital grant).

人们对使用激光产生的太赫兹 (THz) 辐射源来缩小当今粒子加速器的规模越来越感兴趣，其最终梦想是生产紧凑的实验室大小的机器，适用于从多功能 X 射线源到医疗等各种应用。该项目旨在将新型太赫兹（THz）驱动的加速技术提升到新的国际领先水平。通过将超快激光产生的太赫兹辐射源开发与对太赫兹电子束相互作用的新理解相结合，我们寻求开发一种理想化的相互作用方案，并突破传统射频加速腔的 100 MV/m 加速梯度限制。这将通过开发具有多MV/m场强的激光驱动太赫兹源并探索太赫兹脉冲与电子束的相互作用以及加速光束的后续光束动力学来实现。该项目将主要侧重于利用激光驱动的太赫兹源，将台式电子枪中的低能 100 keV 电子束加速到 MeV 能量状态，但也将涉及 CLARA 的工作，这是 STFC Daresbury National 的 50 MeV 线性加速器实验室。受益于曼彻斯特最近资助的太赫兹源开发计划，太赫兹源开发将探索使用新型太赫兹发射器来产生所需的 100 MV/m 场。该项目还将涉及使用 Cockcroft 超快激光系统（最近通过 STFC 资本拨款授予兰开斯特、曼彻斯特和利物浦）。