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RF Power Systems and Optimized RF structures for electron beam acceleration

用于电子束加速的射频电源系统和优化的射频结构

基本信息

批准号：
ST/S000046/1
负责人：
Ivan Konoplev
金额：
$ 7.81万
依托单位：
University of Oxford
依托单位国家：
英国
项目类别：
Research Grant
财政年份：
2018
资助国家：
英国
起止时间：
2018 至无数据
项目状态：
已结题

来源：
https://gtr.ukri.org/projects?ref=ST%2FS000046%2F1
关键词：
RF Power Systems Optimized structures

项目摘要

The proposed work is driven by the ultimate goal to design a modular linear accelerator for cancer treatment with minimum subsystems making it robust, reliable and accessible to communities with lower and intermidiate incomes. The road map to achieve this goal was identified during the recent workshop hosted by STFC, CERN and ICEC in partnership with representatives from ODA countries. It is based on the idea to use the best available in accelerator science solutions and adapt them to specific problems linked to the challenging environments, financial situations and knowledge availability in the ODA countries. This project aims to design accelerating structures which can be affordable, robust, efficient and easy to look after, while keeping the design at the cutting edge of the technological solutions available. To achieve the goals the design of the RF accelerating structure will be based on the CLIC system and adapted to the 1.3GHz frequency enabling the use of either a low voltage solid state RF power supply or alternative sources like klystron or magnetron. To make it modular with minimum subsystems required the structure will be vacuum sealed i.e.no vacuum pumps will be needed to maintain the vacuum and LINAC operation. This will reduce the overall capital and maintenance cost. To reduce the manufacturing cost of the cavity a new technology of cavity manufacturing will be tested. The cavity will be machined from two aluminium blocks using CNC lathe. This will also reduce the weight of the cavity allowing the beam energy of 6MeV -8MeV to be achieved while RF cavity length is around 30cm. The Department of Physics workshop has experience of building a 1.3GHz RF cavity using CNC lathe and will be able to manufacture the cavity in the time scale of the project. It also has experience with vacuum testing of the structures and has the equipment required. The RF bead pull test facilities (JAI Oxford and Daresbury Laboratory) will be used to measure operating and high order modes. The cavity will be sealed and vacuum tested in JAI Oxford and transported to CERN for high power RF tests. The cavity will be kept sealed to observe whether any vacuum degradation will take place with time. To ensure that the system is suitable for ODA countries the partners from Nigeria and Tanzania will be invited to the workshop in Oxford to test the system and advise on ergonomics of the design. We plan to communicate regularly (every two weeks) with all partners via web-meetings during the project to ensure stable and continuous progress as well as securing the impact of the deliverables to the overall aim of the project.

拟议工作的最终目标是设计一种用于癌症治疗的模块化直线加速器，其子系统最少，使其坚固、可靠，并可供中低收入社区使用。实现这一目标的路线图是在最近由STFC、CERN和ICEC与官方发展援助国家代表合作主办的研讨会上确定的。它的基础是利用加速器科学解决方案中现有的最佳方案，并使其适用于与官方发展援助国家具有挑战性的环境、财政状况和知识可获得性有关的具体问题。该项目旨在设计出负担得起、坚固耐用、高效且易于维护的加速结构，同时使设计保持在现有技术解决方案的前沿。为了实现这些目标，射频加速结构的设计将基于CLIC系统，并适应1.3 GHz的频率，从而能够使用低压固态射频电源或速调管或磁控管等替代电源。为了使其模块化，所需的子系统最少，该结构将是真空密封的，即不需要真空泵来维持真空和直线加速器的运行。这将降低整体资本和维护成本。为了降低型腔的制造成本，将试验一种新的型腔制造技术。型腔将使用数控车床由两个铝块加工而成。这也将减轻腔的重量，当射频腔长度约为30厘米时，可以实现6 MeV-8 MeV的束流能量。物理系车间有使用数控车床制造1.3 GHz高频腔的经验，能够在项目时间范围内制造出该腔。它还拥有对结构进行真空测试的经验，并拥有所需的设备。射频磁珠拉力测试设备(杰伊·牛津大学和达累斯伯里实验室)将用于测量工作模式和高阶模式。腔体将在Jai Oxford进行密封和真空测试，并被运送到欧洲核子研究中心进行高功率射频测试。空腔将保持密封，以观察是否会随着时间的推移发生任何真空退化。为确保该系统适用于官方发展援助国家，尼日利亚和坦桑尼亚的合作伙伴将应邀参加在牛津举行的讲习班，以测试该系统并就设计的人体工学提出建议。我们计划在项目期间通过网络会议定期(每两周)与所有合作伙伴沟通，以确保稳定和持续的进展，并确保交付成果对项目总体目标的影响。