• Open Access

Brilliant GeV electron beam with narrow energy spread generated by a laser plasma accelerator

Ronghao Hu, Haiyang Lu, Yinren Shou, Chen Lin, Hongbin Zhuo, Chia-erh Chen, and Xueqing Yan
Phys. Rev. Accel. Beams 19, 091301 – Published 6 September 2016

Abstract

The production of GeV electron beam with narrow energy spread and high brightness is investigated using particle-in-cell simulations. A controlled electron injection scheme and a method for phase-space manipulation in a laser plasma accelerator are found to be essential. The injection is triggered by the evolution of two copropagating laser pulses near a sharp vacuum-plasma transition. The collection volume is well confined and the injected bunch is isolated in phase space. By tuning the parameters of the laser pulses, the parameters of the injected electron bunch, such as the bunch length, energy spread, emittance and charge, can be adjusted. Manipulating the phase-space rotation with the rephasing technique, the injected electron bunch can be accelerated to GeV level while keeping relative energy spread below 0.5% and transverse emittance below 1.0μm. The results present a very promising way to drive coherent x-ray sources.

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  • Received 2 February 2016

DOI:https://doi.org/10.1103/PhysRevAccelBeams.19.091301

This article is available under the terms of the Creative Commons Attribution 3.0 License. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI.

Published by the American Physical Society

Physics Subject Headings (PhySH)

Plasma PhysicsAccelerators & Beams

Authors & Affiliations

Ronghao Hu1, Haiyang Lu1,3,*, Yinren Shou1, Chen Lin1, Hongbin Zhuo2, Chia-erh Chen1, and Xueqing Yan1,3,†

  • 1State Key Laboratory of Nuclear Physics and Technology, and Key Laboratory of HEDP of the Ministry of Education, CAPT, Peking University, Beijing 100871, China
  • 2National University of Defense Technology, Changsha 410073, China
  • 3Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan, Shanxi 030006, China

  • *hylu@pku.edu.cn
  • x.yan@pku.edu.cn

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Vol. 19, Iss. 9 — September 2016

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