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GV/cm scale laser-magnetic resonant acceleration in vacuum

Published online by Cambridge University Press:  08 August 2017

Y. Zhang ,
J.-L. Jiao ,
B. Zhang ,
Z.-M. Zhang  and
Y.-Q. Gu
Y. Zhang
Affiliation:
Science and Technology on Plasma Physics Laboratory, Laser Fusion Research Center, China Academy of Engineering Physics (CAEP), Mianyang 621900, China
J.-L. Jiao
Affiliation:
Science and Technology on Plasma Physics Laboratory, Laser Fusion Research Center, China Academy of Engineering Physics (CAEP), Mianyang 621900, China
B. Zhang
Affiliation:
Science and Technology on Plasma Physics Laboratory, Laser Fusion Research Center, China Academy of Engineering Physics (CAEP), Mianyang 621900, China
Z.-M. Zhang
Affiliation:
Science and Technology on Plasma Physics Laboratory, Laser Fusion Research Center, China Academy of Engineering Physics (CAEP), Mianyang 621900, China
Y.-Q. Gu*
Affiliation:
Science and Technology on Plasma Physics Laboratory, Laser Fusion Research Center, China Academy of Engineering Physics (CAEP), Mianyang 621900, China IFSA Collaborative Innovation Center, Shanghai Jiao Tong University, Shanghai 200240, China HEDPs, Center for Applied Physics and Technology Peking University, Beijing 100871, China
*
*Address correspondence and reprint requests to: Y.-q. Gu, Science and Technology on Plasma Physics Laboratory, Laser Fusion Research Center, China Academy of Engineering Physics (CAEP), Mianyang 621900, China; IFSA Collaborative Innovation Center, Shanghai Jiao Tong University, Shanghai 200240, China and HEDPs, Center for Applied Physics and Technology Peking University, Beijing 100871, China. E-mail: yqgu@caep.cn
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Abstract

Resonant acceleration of electrons by a laser in the background of an extra longitudinal magnetic field is investigated analytically and numerically. The resonant condition is independent of laser intensity, and when satisfied, the energy gain is proportional to $a_0^2 $ and the square of phase difference. This process is mainly limited by the magnitude and spatial size of the extra magnetic field. Under the laboratory conditions, simulation results show that a monoenergetic and collimated electron bunch can still be obtained in ~ GV/cm scale, which sheds a light on the vacuum table-top laser-driven electron accelerators.

Keywords

Electron accelerationExtra magnetic fieldLMRA

Information

Type
Research Article
Information
Laser and Particle Beams , Volume 35 , Issue 3 , September 2017 , pp. 520 - 527
Copyright
Copyright © Cambridge University Press 2017 

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References

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