Enhancing ERL development in the UK

加强英国 ERL 的发展

• 批准号: ST/X000540/1
• 负责人: Carsten Welsch
• 金额: $ 11.53万
• 依托单位: University of Liverpool
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2022
• 资助国家: 英国
• 起止时间: 2022 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=ST%2FX000540%2F1
• 关键词: Enhancing; ERL; development; UK

Energy recovery linacs (ERLs) have the potential to underpin the physics reach of future high-energy physics experiments by allowing the generation of high power electron beams with only modest RF power consumption. This is achieved by extracting the kinetic energy of the spent bunches by decelerating them and using this energy to accelerate new bunches, thus drastically reducing the overall power consumption of the accelerator. Multi-turn ERLs are of particular importance for accelerating electrons to 10s of GeV in a cost effective manner. ERLs are seen as an enabling technology for future high-intensity lepton-hadron colliders (FCC-eh, LHeC, EIC) and FEL facilities (UK-XFEL). Over the next 4-5 years, it is expected that the international ERL community will begin prototyping of relevant technologies and test facilities. The main purpose of this proposal is to maintain the UK's international leadership in accelerator R&D related to ERLs.Superconducting RF (SRF) technology is essential to the operation of an ERL, and the high delivered beam powers demand development of machine protection and related diagnostics. Finally, the beam line designs, including the topology and interleaving of new and old bunches in the machine over multiple turns - known as the filling pattern - are an important new area of study since recent UK studies have shown the potential for major improvements in performance using optimised bunch patterns. The Cockcroft Institute has world-leading expertise in all of these areas and accordingly have identified these areas as high priority. Hence the research undertaken within this project will address these areas to enhance the UK's continued leadership.The UK Accelerator R&D Roadmap by PPTAP will highlight potential societal applications of ERLs that could occur on smaller scale facilities than those required for future colliders. Of particular interest are those in light sources, namely a monoenergetic gamma source driven via inverse Compton scattering, and high average power Free Electron Lasers with synergies to a UK-XFEL. A mid-scale ERL facility addressing these could also be a platform for timely deployment of the key technologies required for future collider projects. Within this roadmap, all three high-priority themes of R&D are mentioned with thin film SRF mentioned in both the RF and ERL sections, and the ERL section highlighting the need for further accelerator R&D as well as diagnostics. Furthermore, the studies on diagnostics and thin film SRF are likely to have applications for security and medical accelerators, providing additional societal impact.

能源恢复LINAC（ERLS）有可能通过仅使用适度的RF功率消耗的高功率电子束的产生来支持未来高能物理实验的物理覆盖。这是通过通过减速支出并利用这种能量加速新束来提取的动力来实现的，从而大大降低了加速器的整体功耗。多转弯ERL对于以具有成本效益的方式将电子加速到10s的GEV非常重要。 ERL被视为未来高强度Lepton-Hadron Colliders（FCC-EH，LHEC，EIC）和FEL设施（UK-XFEL）的能力技术。在接下来的4 - 5年中，预计国际ERL社区将开始对相关技术和测试设施进行原型设计。该提案的主要目的是维持英国在与ERL有关的加速器研发方面的国际领导。SuperconductingRF（SRF）技术对于ERL的运行至关重要，并且高的横梁能力需要机器保护和相关诊断的开发。最后，波束线设计，包括机器中新的和旧束的拓扑和塑造（称为填充模式）是一个重要的新研究领域，因为最近英国的研究表明，使用优化的束束模式可以重大改进性能。 Cockcroft Institute在所有这些领域都有世界领先的专业知识，因此将这些领域确定为高优先事项。因此，该项目内进行的研究将解决这些领域，以提高英国的持续领导。PPTAP的英国加速器研发路线图将突出ERL的潜在社会应用，而ERL的潜在社会应用可能比将来的校友所需的规模较小。特别令人感兴趣的是那些在光源中，即通过compton逆散射驱动的单声工伽玛源，以及与UK-XFEL协同作用的高平均电力电子激光器。解决这些问题的中期ERL设施也可能是及时部署未来对撞机项目所需的关键技术的平台。在此路线图内，RF和ERL部分中提到的薄膜SRF提到了所有三个高优先级主题，而ERL部分则强调了进一步加速器R＆D的需求以及诊断。此外，有关诊断和薄膜SRF的研究可能会应用于安全和医疗加速器，从而提供了其他社会影响。