Generation of tunable, 100–800 MeV quasi-monoenergetic electron beams from a laser-wakefield accelerator in the blowout regimea)

نویسندگان

  • S. Banerjee
  • N. D. Powers
  • V. Ramanathan
  • I. Ghebregziabher
  • K. J. Brown
  • C. M. Maharjan
  • S. Chen
  • A. Beck
  • E. Lefebvre
  • S. Y. Kalmykov
  • B. A. Shadwick
  • D. P. Umstadter
چکیده

Articles you may be interested in Generation of electron beams from a laser wakefield acceleration in pure neon gas High-quality electron beam from laser wake-field acceleration in laser produced plasma plumes Appl. In this paper, we present results on a scalable high-energy electron source based on laser wakefield acceleration. The electron accelerator using 30–80 TW, 30 fs laser pulses, operates in the blowout regime, and produces high-quality, quasi-monoenergetic electron beams in the range 100–800 MeV. These beams have angular divergence of 1–4 mrad, and 5%–25% energy spread, with a resulting brightness 10 11 electrons mm À2 MeV À1 mrad À2. The beam parameters can be tuned by varying the laser and plasma conditions. The use of a high-quality laser pulse and appropriate target conditions enables optimization of beam quality, concentrating a significant fraction of the accelerated charge into the quasi-monoenergetic component. V C 2012 American Institute of Physics.

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تاریخ انتشار 2015