Longitudinal phase space (LPS) manipulation is critical and necessary for advanced acceleration concepts, radiation sources and improving the performance of x-ray free electron lasers. Here we present a simple and versatile method to semiarbitrarily shape the longitudinal phase space of a charged bunch by using wakefields generated in tailored dielectric-lined waveguides. We apply the concept in simulation and provide examples for radiation generation and bunch compression. We finally discuss the manufacturing capabilities of a modern 3D printer and investigate how printing limitations, as well as the shape of the input LPS, affect the performance of the device.

中文翻译：

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纵向相空间合成与量身定制的3D打印介电波导

纵向相空间（LPS）操纵对于先进的加速概念，辐射源和提高X射线自由电子激光器的性能至关重要且必不可少。在这里，我们提出一种简单而通用的方法，通过使用在定制的带电介质衬里的波导中产生的尾波场半任意地整形带电束的纵向相空间。我们将该概念应用于仿真中，并提供了辐射生成和束压缩的示例。最后，我们讨论现代3D打印机的制造能力，并研究打印限制以及输入LPS的形状如何影响设备的性能。