Robust Permanent Magnet Beam Delivery Systems for Medical Radiotherapy Linacs

用于医疗放射治疗直线加速器的坚固永磁束传输系统

• 批准号: ST/S000224/1
• 负责人: Suzanne Sheehy
• 金额: $ 6.45万
• 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%2FS000224%2F1
• 关键词: Robust; Permanent; Magnet; Beam; Delivery

This proposal forms part of an initiative to design a linear electron accelerator for radiotherapy where all subsystems will be optimised to ensure it is robust, reliable, cost effective and appropriate for use in challenging environments including developing countries. This project aims to design a beam delivery system (magnetic focusing and steering) which uses modern capabilities in permanent magnets to ensure that a high-quality electron beam can be taken from the source to the x-ray generating target with minimal losses. Replacing some or all of the existing electromagnets with permanent magnets should enable a maintenance-free focusing system which requires very little electricity, which has been highlighted as a barrier to providing this technology in ODA countries. (A few smaller, cheaper and replaceable adjustable electromagnets will be included for fine tuning, which would have minimal power requirements.)

该提案构成了设计放射治疗用直线电子加速器的倡议的一部分，其中所有子系统都将得到优化，以确保其稳健、可靠、具有成本效益，并适用于包括发展中国家在内的具有挑战性的环境。该项目旨在设计一种束流传输系统（磁聚焦和转向），该系统使用永磁体的现代功能，以确保高质量的电子束可以以最小的损失从源到X射线产生靶。用永久磁铁取代部分或全部现有电磁铁，应能实现无需维护的聚焦系统，该系统需要很少的电力，这已被强调为在官方发展援助国家提供这一技术的一个障碍。（一些更小，更便宜和可更换的可调电磁铁将被包括在内，用于微调，这将具有最小的功率要求。

项目成果

Ultimate energy recovery from spent relativistic electron beam in energy recovery linear accelerators

能量回收直线加速器中废相对论电子束的最终能量回收

• DOI: 10.1103/physrevaccelbeams.23.071601
• 发表时间: 2020
• 期刊: Physical Review Accelerators and Beams
• 影响因子: 1.7
• 作者: Konoplev I

Comparative analysis of radiotherapy LINAC downtime and failure modes in the UK, Nigeria and Botswana

英国、尼日利亚和博茨瓦纳放射治疗直线加速器停机时间和故障模式的比较分析

• DOI: 10.48550/arxiv.1905.03447
• 发表时间: 2019
• 作者: Wroe L