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Trapping and acceleration of short electron bunches in the laser wakefields

Published online by Cambridge University Press:  04 September 2017

N.E. Andreev ,
V.E. Baranov  and
H.H. Matevosyan
N.E. Andreev*
Affiliation:
Joint Institute for High Temperatures of the Russian Academy of Sciences, Izhorskaya 13 Bldg 2, Moscow 125412, Russia Moscow Institute of Physics and Technology, Institutskiy Pereulok 9, Dolgoprudny 141700, Russia
V.E. Baranov
Affiliation:
Joint Institute for High Temperatures of the Russian Academy of Sciences, Izhorskaya 13 Bldg 2, Moscow 125412, Russia
H.H. Matevosyan
Affiliation:
Institute of Radiophysics and Electronics of NAS RA, Ashtarak 0203, Armenia
*
Address correspondence and reprint requests to: N.E. Andreev, Joint Institute for High Temperatures of the Russian Academy of Sciences, Izhorskaya 13 Bldg 2, Moscow 125412, Russia. E-mail: [email protected]
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Abstract

The processes of trapping, compression, and acceleration of short electron bunches externally injected into the wakefields generated by intense femtosecond laser pulse in a plasma channel are analyzed and optimized. The influence of the laser non-linear dynamics to the longitudinal bunch compression and impact of the beam loading effect (self-action of the bunch charge) to the finite energy and the energy spread of the accelerated electrons are investigated. The limitations to the charge of accelerated electron bunch determined by the requirement of a small width of the electron energy distribution of the bunch are found.

Keywords

Beam loading effectElectron bunch trapping and compressionLaser wakefield electron accelerators
Type
Research Article
Information
Laser and Particle Beams , Volume 35 , Issue 4 , December 2017 , pp. 569 - 573
Copyright
Copyright © Cambridge University Press 2017 

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