Laser-driven electron beamlines generated by coupling laser-plasma sources with conventional transport systems
Laser-driven electron beamlines generated by coupling laser-plasma sources with conventional transport systems
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DOI：
10.1063/1.4740456
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发表时间：
2012-08-15
影响因子：
3.2
通讯作者：
Serafini, L.
中科院分区：
文献类型：
--
作者：
Antici, P.;Bacci, A.;Serafini, L.
激光驱动的电子束线越来越受到粒子加速器界的关注。特别是，基于等离子体的电子源的高初始能量、低发射率和高束流可能允许产生比传统加速器技术所能实现的更紧凑和明亮的粒子加速器。使用激光产生的粒子作为产生光束线的注入器可以显着减小加速器设施的尺寸和成本。不幸的是，在考虑将基于激光的粒子束用于粒子束线之前，其一些特性仍需要改进，从而使等离子体驱动的加速器能够用于传统加速器的多种应用。除了对等离子体源本身进行研究之外，一种有前景的激光产生光束成形方法是将它们与传统的加速器元件耦合，以便从多功能电子源和可控光束中受益。在本文中，我们使用传统的加速器代码和方法进行从头到尾的模拟，以生成激光驱动的光束线。从可以通过已建立的数百台TW激光系统获得的激光生成电子开始，我们比较了捕获和传输光束的不同选项。执行此操作的目的是提供适合潜在应用（例如自由电子激光器）的光束线。在我们的方法中，我们从源头上分析了哪些参数至关重要，并从那里评估了使用传统加速器元件和方法克服这些问题的不同方法。我们表明，电子驱动束线可能是可行的，但要充分发挥其潜力，需要广泛改进源参数或用于传输和捕获的创新技术设备。 (C) 2012 年美国物理研究所。 [http://dx.doi.org/10.1063/1.4740456]
Laser-driven electron beamlines are receiving increasing interest from the particle accelerator community. In particular, the high initial energy, low emittance, and high beam current of the plasma based electron source potentially allow generating much more compact and bright particle accelerators than what conventional accelerator technology can achieve. Using laser-generated particles as injectors for generating beamlines could significantly reduce the size and cost of accelerator facilities. Unfortunately, several features of laser-based particle beams need still to be improved before considering them for particle beamlines and thus enable the use of plasma-driven accelerators for the multiple applications of traditional accelerators. Besides working on the plasma source itself, a promising approach to shape the laser-generated beams is coupling them with conventional accelerator elements in order to benefit from both a versatile electron source and a controllable beam. In this paper, we perform start-to-end simulations to generate laser-driven beamlines using conventional accelerator codes and methodologies. Starting with laser-generated electrons that can be obtained with established multi-hundred TW laser systems, we compare different options to capture and transport the beams. This is performed with the aim of providing beamlines suitable for potential applications, such as free electron lasers. In our approach, we have analyzed which parameters are critical at the source and from there evaluated different ways to overcome these issues using conventional accelerator elements and methods. We show that electron driven beamlines are potentially feasible, but exploiting their full potential requires extensive improvement of the source parameters or innovative technological devices for their transport and capture. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4740456]