We present a topology for linear accelerators (linacs) in which the power is distributed to the cavities through a waveguide with periodic apertures that guarantees the correct phases and amplitudes along the structure length. Unlike conventional traveling and standing-wave linacs, the presented topology allows the cavity shapes to be designed without the constraints applied to the coupling between cells to transfer power from one cell to the next. Therefore, the topology permits more degrees of freedom for the optimization of individual cavity shapes in comparison with conventional linacs. The cavity shapes can be optimized for power consumption and efficiency, and/or the manipulation of the surface fields for high gradient operation. This topology also provides a possibility for low-temperature manufacturing techniques that prevent the annealing of the material during typical brazing processes; hence, the material could retain its original properties such as hardness. We present a design and an experimental demonstration of this linac.

中文翻译：

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分布式耦合线性加速器结构的设计与演示

我们提出了一种线性加速器（直线加速器）的拓扑结构，其中功率通过具有周期性孔径的波导分配到空腔，从而保证沿结构长度的正确相位和振幅。与传统的行波直线加速器和驻波直线加速器不同，本发明的拓扑结构允许设计腔体形状，而没有施加到单元之间的耦合以将功率从一个单元传递到下一个单元的约束。因此，与常规直线加速器相比，拓扑结构允许更大的自由度来优化单个腔体的形状。腔形状可以针对功率消耗和效率和/或用于高梯度操作的表面场的操纵进行优化。这种拓扑结构还为低温制造技术提供了可能，该技术可防止典型的钎焊过程中材料的退火。因此，该材料可以保留其原始属性，例如硬度。我们提出了这种直线加速器的设计和实验演示。