Beam quality study for a grating-based dielectric laser-driven accelerator

Wei, Y. and Jamison, S. and Xia, G. and Hanahoe, K. and Li, Y. and Smith, J.D.A. and Welsch, C.P. (2017) Beam quality study for a grating-based dielectric laser-driven accelerator. Physics of Plasmas, 24 (2). ISSN 1070-664X

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Dielectric laser-driven accelerators (DLAs) based on grating structures are considered to be one of the most promising technologies to reduce the size and cost of future particle accelerators. They offer high accelerating gradients of up to several GV/m in combination with mature lithographic techniques for structure fabrication. This paper numerically investigates the beam quality for acceleration of electrons in a realistic dual-grating DLA. In our simulations, we use beam parameters of the future Compact Linear Accelerator for Research and Applications facility to load an electron bunch into an optimized 100-period dual-grating structure where it interacts with a realistic laser pulse. The emittance, energy spread, and loaded accelerating gradient for modulated electrons are then analyzed in detail. Results from simulations show that an accelerating gradient of up to 1.13 6 0.15 GV/m with an extremely small emittance growth, 3.6%, can be expected.

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Journal Article
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Physics of Plasmas
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Copyright 2017 American Institute of Physics. The following article appeared in Physics of Plasmas, 24 (2), 2017 and may be found at This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics.
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16 Aug 2018 08:28
Last Modified:
18 Sep 2023 01:23