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Coupling of longitudinal and transverse motion of accelerated electrons in laser wakefield acceleration

Published online by Cambridge University Press:  01 October 2004

A.J.W. REITSMA  and
D.A. JAROSZYNSKI
A.J.W. REITSMA
Affiliation:
Department of Physics, Strathclyde University, Glasgow, United Kingdom
D.A. JAROSZYNSKI
Affiliation:
Department of Physics, Strathclyde University, Glasgow, United Kingdom
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Abstract

The acceleration dynamics of electrons in a laser wakefield accelerator is discussed, in particular the coupling of longitudinal and transverse motion. This coupling effect is important for electrons injected with a velocity below the laser pulse group velocity. It is found that the electron bunch is adiabatically focused during the acceleration and that a finite bunch width contributes to bunch lengthening and growth of energy spread. These results indicate the importance of a small emittance for the injected electron bunch.

Keywords

Beam qualityElectron dynamicsPlasma-based acceleration
Type
INTERNATIONAL WORKSHOP ON LASER AND PLASMA ACCELERATORS
Information
Laser and Particle Beams , Volume 22 , Issue 4 , October 2004 , pp. 407 - 413
Copyright
© 2004 Cambridge University Press

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Footnotes

This paper was delivered at the International Workshop on Laser and Plasma Accelerators, held at Portovenere, Italy, September 29 to October 3, 2003.

References

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