Relativistic focusing and beat wave phase velocity control in the plasma beat wave accelerator

Esarey, E.; Ting, A.; Sprangle, P.
October 1988
Applied Physics Letters;10/3/1988, Vol. 53 Issue 14, p1266
Academic Journal
Relativistic focusing allows two collinear short pulse radiation beams, provided they are of sufficiently high power, to propagate through a plasma without diffracting. By further accounting for finite radial beam geometry, it is possible for the phase velocity of the radiation beat (ponderomotive) wave to equal to the speed of light. This removes one of the limiting factors, phase detuning between the accelerated electrons and the beat wave, in determining the maximum energy gain in the plasma beat wave accelerator.


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