具有真实磁体的医疗和成像固定场交变梯度加速器
Medical therapy and imaging fixed-field alternating-gradient accelerator with realistic magnets
摘要：
NORMA是一种用于50至350 MeV质子的正常传导赛道固定场交变梯度加速器（FFAG）的设计。在这篇文章中，我们展示了从一个理想化的晶格的发展与严格的二维（2D）和三维（3D）有限元磁铁建模的磁场图实施的设计。我们表明，虽然从一个2D模型的字段可能会重现理想化的字段到一个密切的近似，调整必须考虑到由3D模型和边缘字段和完整的3D模型所带来的差异的晶格。实施这些晶格校正，我们恢复所需的性能，小的调谐位移与能量和一个巨大的动态孔径。主要结果是一个迭代的设计方法，以产生第一个现实的设计质子治疗加速器，可以快速提供质子治疗和成像高达350兆电子伏。第一次迭代是显式执行的，并在文本中详细描述。
英文摘要：
NORMA is a design for a normal-conducting race track fixed-field alternating-gradient accelerator (FFAG) for protons from 50 to 350 MeV. In this article we show the development from an idealised lattice to a design implemented with field maps from rigorous two-dimensional (2D) and three-dimensional (3D) FEM magnet modelling. We show that whilst the fields from a 2D model may reproduce the idealised field to a close approximation, adjustments must be made to the lattice to account for differences brought about by the 3D model and fringe fields and full 3D models. Implementing these lattice corrections we recover the required properties of small tune shift with energy and a sufficiently-large dynamic aperture. The main result is an iterative design method to produce the first realistic design for a proton therapy accelerator that can rapidly deliver protons for both treatment and for imaging at up to 350 MeV. The first iteration is performed explicitly and described in detail in the text.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
